Archive for the ‘Most Read’ Category

How Does Nano-Confinement Boost Oxygen-Reduction Electrocatalytic Activity?

Why do biological enzymes exhibit superior catalytic activity? Well, this is mainly because they can firmly anchor reactants into catalytically active pockets using their three-dimensional structures. Inspired by this nano-confinement effect, scientists have developed “nanozymes,” a family of artificial enzymes.

A group of scientists from the University of New South Wales (Australia), University of Utah (USA), and Ruhr-Universität Bochum (Germany) investigated the interplay between the degree of nano-confinement and oxygen reduction reaction (ORR) activity. They discovered that ORR activity only scaled proportionally to the degree of confinement at low overpotentials (ORR theoretical potential: 1.23 V vs. RHE). The results have been published in Chemical Science (doi: 10.1039/C9SC05611D).

Synthesized by etching Ni from Pt-Ni alloy nanoparticles, metallic Pt nanoparticles possessing channels of different opening sizes served as the nanozymes with different confinement degrees. When the Ni content increased, the channel of the etched nanoparticles widened. Specifically, Pt nanozymes prepared from Pt-Ni nanoparticles with Pt/Ni = 1/1.5 (NZsmall) contained 69% channel openings smaller than 2 nm (Fig. 1a); Whereas those from the precursors with Pt/Ni = 1/2.5 (NZmedium) and 1/3 (NZlarge) had 52% (Fig. 1b) and 34% (Fig. 1c) <2-nm-wide channels, respectively. Therefore, the nano-confinement degrees of the three nanozymes followed the sequence of NZsmall>NZmedium>NZlarge.

Figure 1. High-resolution transmission electron microscopy images (left) and channel diameter distribution profiles (right) of (a) NZsmall, (b) NZmedium, and (c) NZlarge.

The ORR activity of the three nanozymes strongly depended on the magnitude of the overpotential. With the outer surfaces passivated by surfactants, the ORR activities of the nanozymes were only associated with O2 reduction within their channels. At low overpotentials (Fig. 2, inset), NZsmall had the highest ORR activity among all the catalysts evaluated by the authors, as indicated by its lowest kinetic current. At high overpotentials or low applied biases; however, the ORR activity of NZmedium and NZlarge rapidly increased (Fig. 2). NZmedium and NZlarge became more active than NZsmall at potentials lower than 0.82 V (vs. RHE) and 0.80 V (vs. RHE), respectively.

Figure 2. The potential (E)-dependence of kinetic current density (jk). Inset: low-overpotential (high potentials) region. Legends: solid black – NZsmall; solid blue – NZmedium; solid red – NZlarge; open black – mesoporous Pt nanoparticles without nano-channels. The consistently small absolute jk of the mesoporous nanoparticles reflected its relatively low ORR activity.

The finite element simulation revealed the underlying mechanism of the experimental results. At low overpotentials, the ORR activity was governed by the kinetics of O2-reduction. Due to high charge density, the local proton concentration inside the channels of NZsmall was the highest, leading to the fastest reaction and the highest ORR activity. At high overpotentials, the ORR activity became mass-transport limited. Nanozymes with wide channel openings, that is, NZmedium and NZlarge, allowed a large amount of O2 to diffuse into the channels, which enhanced O2 supply and augmented ORR activity.

This work unveiled the potential-dependence of the ORR catalytic activities of porous Pt nanoparticles under different degrees of nano-confinement. This insight could rationalize and further enable the design of nanozymes with tailorable ORR activities.

 

To find out more, please read:

The Importance of Nanoscale Confinement to Electrocatalytic Performance

Johanna Wordsworth, Tania M. Benedetti, Ali Alinezhad, Richard D. Tilley, Martin A. Edwards, Wolfgang Schuhmann, and J. Justin Gooding

Chem. Sci., 2019, DOI: 10.1039/C9SC05611D

 

Tianyu Liu acknowledges Zac Croft at Virginia Tech, U.S., for his careful proofreading of this post.

 

About the blogger:

Tianyu Liu obtained his Ph.D. (2017) in Chemistry from the University of California, Santa Cruz, in the United States. He is passionate about the communication of scientific endeavors to both the general public and other scientists with diverse research expertise to introduce cutting-edge research to broad audiences. He is a blog writer for Chem. Comm. and Chem. Sci. More information about him can be found at http://liutianyuresearch.weebly.com/.

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Top 10 most accessed Chemical Science articles from April – June 2016

From April – June 2016, our most downloaded Chemical Science articles were:

Evaluating metal–organic frameworks for natural gas storage
Jarad A. Mason, Mike Veenstra and Jeffrey R. Long
Chem. Sci., 2014, 5, 32-51
DOI: 10.1039/C3SC52633J, Perspective

Rethinking the term “pi-stacking”
Chelsea R. Martinez and Brent L. Iverson
Chem. Sci., 2012, 3, 2191-2201
DOI: 10.1039/C2SC20045G, Perspective

Macrocycles: lessons from the distant past, recent developments, and future directions
Andrei K. Yudin
Chem. Sci., 2015, 6, 30-49
DOI: 10.1039/C4SC03089C, Perspective

Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke, Daniel J. Slotcavage, Emma R. Dohner, Andrea R. Bowring, Hemamala I. Karunadasa and Michael D. McGehee
Chem. Sci., 2015, 6, 613-617
DOI: 10.1039/C4SC03141E, Edge Article

Metal–organic framework-based CoP/reduced graphene oxide: high-performance bifunctional electrocatalyst for overall water splitting
Long Jiao, Yu-Xiao Zhou and Hai-Long Jiang
Chem. Sci., 2016, 7, 1690-1695
DOI: 10.1039/C5SC04425A, Edge Article

Sulfonyl fluorides as privileged warheads in chemical biology
Arjun Narayanan and Lyn H. Jones
Chem. Sci., 2015, 6, 2650-2659
DOI: 10.1039/C5SC00408J, Perspective

Accurate calculation of the absolute free energy of binding for drug molecules
Matteo Aldeghi, Alexander Heifetz, Michael J. Bodkin, Stefan Knapp and Philip C. Biggin
Chem. Sci., 2016, 7, 207-218
DOI: 10.1039/C5SC02678D, Edge Article

Pot economy and one-pot synthesis
Yujiro Hayashi
Chem. Sci., 2016, 7, 866-880
DOI: 10.1039/C5SC02913A, Perspective

Vitrimers: permanent organic networks with glass-like fluidity
Wim Denissen, Johan M. Winne and Filip E. Du Prez
Chem. Sci., 2016, 7, 30-38
DOI: 10.1039/C5SC02223A, Minireview

Topochemical molten salt synthesis for functional perovskite compounds
Lihong Li, Jinxia Deng, Jun Chen and Xianran Xing
Chem. Sci., 2016, 7, 855-865
DOI: 10.1039/C5SC03521J, Perspective

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Top 25 most-downloaded Chemical Science articles January–March 2016

Take a look at the 25 most-downloaded Chemical Science articles from the first quarter of 2016 – many are open access.

Which conformations make stable crystal structures? Mapping crystalline molecular geometries to the conformational energy landscape
Hugh P. G. Thompson and Graeme M. Day
Chem. Sci., 2014, 5, 3173-3182, DOI: 10.1039/C4SC01132E, Edge Article
Open access

Pot economy and one-pot synthesis
Yujiro Hayashi
Chem. Sci., 2016, 7, 866-880, DOI: 10.1039/C5SC02913A, Perspective
Open access

Macrocycles: lessons from the distant past, recent developments, and future directions
Andrei K. Yudin
Chem. Sci., 2015, 6, 30-49, DOI: 10.1039/C4SC03089C, Perspective
Open access

Evaluating metal–organic frameworks for natural gas storage
Jarad A. Mason, Mike Veenstra and Jeffrey R. Long
Chem. Sci., 2014, 5, 32-51, DOI: 10.1039/C3SC52633J, Perspective
Open access

Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke, Daniel J. Slotcavage, Emma R. Dohner, Andrea R. Bowring, Hemamala I. Karunadasa and Michael D. McGehee
Chem. Sci., 2015, 6, 613-617, DOI: 10.1039/C4SC03141E, Edge Article
Open access

The ligand unwrapping/rewrapping pathway that exchanges metals in S-acetylated, hexacoordinate N2S2O2 complexes
J. A. Denny, W. S. Foley, A. D. Todd and M. Y. Darensbourg
Chem. Sci., 2015, 6, 7079-7088, DOI: 10.1039/C5SC02269J, Edge Article
Open access

Rethinking the term “pi-stacking”
Chelsea R. Martinez and Brent L. Iverson
Chem. Sci., 2012, 3, 2191-2201, DOI: 10.1039/C2SC20045G, Perspective
From themed collection Physical Chemistry

Structurally plastic peptide capsules for synthetic antimicrobial viruses
Valeria Castelletto, Emiliana de Santis, Hasan Alkassem, Baptiste Lamarre, James E. Noble, Santanu Ray, Angelo Bella, Jonathan R. Burns, Bart W. Hoogenboom and Maxim G. Ryadnov
Chem. Sci., 2016, 7, 1707-1711, DOI: 10.1039/C5SC03260A, Edge Article
Open access

A versatile synthetic route for the preparation of titanium metal–organic frameworks
Lanfang Zou, Dawei Feng, Tian-Fu Liu, Ying-Pin Chen, Shuai Yuan, Kecheng Wang, Xuan Wang, Stephen Fordham and Hong-Cai Zhou
Chem. Sci., 2016, 7, 1063-1069, DOI: 10.1039/C5SC03620H, Edge Article
Open access

Dual gold/photoredox-catalyzed C(sp)–H arylation of terminal alkynes with diazonium salts
Adrian Tlahuext-Aca, Matthew N. Hopkinson, Basudev Sahoo and Frank Glorius
Chem. Sci., 2016, 7, 89-93, DOI: 10.1039/C5SC02583D, Edge Article
Open access

Sulfonyl fluorides as privileged warheads in chemical biology
Arjun Narayanan and Lyn H. Jones
Chem. Sci., 2015, 6, 2650-2659, DOI: 10.1039/C5SC00408J, Perspective
Open access

Asymmetric supercapacitors with high energy density based on helical hierarchical porous NaxMnO2 and MoO2
Xue-Feng Lu, Zhi-Xiang Huang, Ye-Xiang Tong and Gao-Ren Li
Chem. Sci., 2016, 7, 510-517, DOI: 10.1039/C5SC03326H, Edge Article
Open access

Vitrimers: permanent organic networks with glass-like fluidity
Wim Denissen, Johan M. Winne and Filip E. Du Prez
Chem. Sci., 2016, 7, 30-38, DOI: 10.1039/C5SC02223A, Minireview
Open access

Metal–organic framework-based CoP/reduced graphene oxide: high-performance bifunctional electrocatalyst for overall water splitting
Long Jiao, Yu-Xiao Zhou and Hai-Long Jiang
Chem. Sci., 2016, 7, 1690-1695, DOI: 10.1039/C5SC04425A, Edge Article
Open access

Aromatic hydrocarbon macrocycles for highly efficient organic light-emitting devices with single-layer architectures
Jing Yang Xue, Tomoo Izumi, Asami Yoshii, Koki Ikemoto, Takashi Koretsune, Ryosuke Akashi, Ryotaro Arita, Hideo Taka, Hiroshi Kita, Sota Sato and Hiroyuki Isobe
Chem. Sci., 2016, 7, 896-904, DOI: 10.1039/C5SC03807C, Edge Article
Open access

Peptide-based synthetic vaccines
Mariusz Skwarczynski and Istvan Toth
Chem. Sci., 2016, 7, 842-854, DOI: 10.1039/C5SC03892H, Minireview
Open access

Accurate calculation of the absolute free energy of binding for drug molecules
Matteo Aldeghi, Alexander Heifetz, Michael J. Bodkin, Stefan Knapp and Philip C. Biggin
Chem. Sci., 2016, 7, 207-218, DOI: 10.1039/C5SC02678D, Edge Article
Open access

Thin metal nanostructures: synthesis, properties and applications
Zhanxi Fan, Xiao Huang, Chaoliang Tan and Hua Zhang
Chem. Sci., 2015, 6, 95-111, DOI: 10.1039/C4SC02571G, Minireview
Open access

Combination of Ru(II) complexes and light: new frontiers in cancer therapy
Cristina Mari, Vanessa Pierroz, Stefano Ferrari and Gilles Gasser
Chem. Sci., 2015, 6, 2660-2686, DOI: 10.1039/C4SC03759F, Perspective
Open access

Designing logical codon reassignment – Expanding the chemistry in biology
Anaëlle Dumas, Lukas Lercher, Christopher D. Spicer and Benjamin G. Davis
Chem. Sci., 2015, 6, 50-69, DOI: 10.1039/C4SC01534G, Minireview
Open access

Computational design of molecules for an all-quinone redox flow battery
Süleyman Er, Changwon Suh, Michael P. Marshak and Alán Aspuru-Guzik
Chem. Sci., 2015, 6, 885-893, DOI: 10.1039/C4SC03030C, Edge Article
Open access

Dialkylbiaryl phosphines in Pd-catalyzed amination: a user’s guide
David S. Surry and Stephen L. Buchwald
Chem. Sci., 2011, 2, 27-50, DOI: 10.1039/C0SC00331J, Perspective

An ultrasensitive near-infrared ratiometric fluorescent probe for imaging mitochondrial polarity in live cells and in vivo
Haibin Xiao, Ping Li, Wei Zhang and Bo Tang
Chem. Sci., 2016, 7, 1588-1593, DOI: 10.1039/C5SC04099J, Edge Article
Open access

Visible light-mediated gold-catalysed carbon(sp2)–carbon(sp) cross-coupling
Suhong Kim, Jaime Rojas-Martin and F. Dean Toste
Chem. Sci., 2016, 7, 85-88, DOI: 10.1039/C5SC03025K, Edge Article
Open access

Synthesis of high quality two-dimensional materials via chemical vapor deposition
Jingxue Yu, Jie Li, Wenfeng Zhang and Haixin Chang
Chem. Sci., 2015, 6, 6705-6716, DOI: 10.1039/C5SC01941A, Perspective
Open access


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Top 25 Chemical Science articles October–December 2015

The 25 most-downloaded Chemical Science articles in the fourth quarter of 2015 were as follows: 

Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke, Daniel J. Slotcavage, Emma R. Dohner, Andrea R. Bowring, Hemamala I. Karunadasa and Michael D. McGehee
Chem. Sci., 2015, DOI: 10.1039/C4SC03141E, Edge Article

Evaluating metal–organic frameworks for natural gas storage
Jarad A. Mason, Mike Veenstra and Jeffrey R. Long
Chem. Sci., 2014, DOI: 10.1039/C3SC52633J, Perspective

Macrocycles: lessons from the distant past, recent developments, and future directions
Andrei K. Yudin
Chem. Sci., 2015, DOI: 10.1039/C4SC03089C, Perspective

Rethinking the term “pi-stacking”
Chelsea R. Martinez and Brent L. Iverson
Chem. Sci., 2012, DOI: 10.1039/C2SC20045G, Perspective
From themed collection Physical Chemistry

Characterizing chain processes in visible light photoredox catalysis
Megan A. Cismesia and Tehshik P. Yoon
Chem. Sci., 2015, DOI: 10.1039/C5SC02185E, Edge Article

Sulfonyl fluorides as privileged warheads in chemical biology
Arjun Narayanan and Lyn H. Jones
Chem. Sci., 2015, DOI: 10.1039/C5SC00408J, Perspective

Dialkylbiaryl phosphines in Pd-catalyzed amination: a user’s guide
David S. Surry and Stephen L. Buchwald
Chem. Sci., 2011, DOI: 10.1039/C0SC00331J, Perspective

Thin metal nanostructures: synthesis, properties and applications
Zhanxi Fan, Xiao Huang, Chaoliang Tan and Hua Zhang
Chem. Sci., 2015, DOI: 10.1039/C4SC02571G, Minireview

Copper-catalyzed condensation of imines and α-diazo-β-dicarbonyl compounds: modular and regiocontrolled synthesis of multisubstituted pyrroles
Wei Wen Tan and Naohiko Yoshikai
Chem. Sci., 2015, DOI: 10.1039/C5SC02322J, Edge Article

Boron chemistry in a new light
Guillaume Duret, Robert Quinlan, Philippe Bisseret and Nicolas Blanchard
Chem. Sci., 2015, DOI: 10.1039/C5SC02207J, Minireview

Synthesis of high quality two-dimensional materials via chemical vapor deposition
Jingxue Yu, Jie Li, Wenfeng Zhang and Haixin Chang
Chem. Sci., 2015, DOI: 10.1039/C5SC01941A, Perspective

Aggregation-induced emission of siloles
Zujin Zhao, Bairong He and Ben Zhong Tang
Chem. Sci., 2015, DOI: 10.1039/C5SC01946J, Minireview

Computational design of molecules for an all-quinone redox flow battery
Süleyman Er, Changwon Suh, Michael P. Marshak and Alán Aspuru-Guzik
Chem. Sci., 2015, DOI: 10.1039/C4SC03030C, Edge Article

Designing logical codon reassignment – Expanding the chemistry in biology
Anaëlle Dumas, Lukas Lercher, Christopher D. Spicer and Benjamin G. Davis
Chem. Sci., 2015, DOI: 10.1039/C4SC01534G, Minireview

Carbon–hydrogen (C–H) bond activation at PdIV: a Frontier in C–H functionalization catalysis
Joseph J. Topczewski and Melanie S. Sanford
Chem. Sci., 2015, DOI: 10.1039/C4SC02591A, Minireview

C–H arylation and alkenylation of imidazoles by nickel catalysis: solvent-accelerated imidazole C–H activation
Kei Muto, Taito Hatakeyama, Junichiro Yamaguchi and Kenichiro Itami
Chem. Sci., 2015, DOI: 10.1039/C5SC02942B, Edge Article

A quantitative definition of hypervalency
Marcus C. Durrant
Chem. Sci., 2015, DOI: 10.1039/C5SC02076J, Edge Article

Molecular understandings on the activation of light hydrocarbons over heterogeneous catalysts
Zhi-Jian Zhao, Cheng-chau Chiu and Jinlong Gong
Chem. Sci., 2015, DOI: 10.1039/C5SC01227A, Perspective

Hydrogenation of carbon dioxide to methanol using a homogeneous ruthenium–Triphos catalyst: from mechanistic investigations to multiphase catalysis
Sebastian Wesselbaum, Verena Moha, Markus Meuresch, Sandra Brosinski, Katharina M. Thenert, Jens Kothe, Thorsten vom Stein, Ulli Englert, Markus Hölscher, Jürgen Klankermayer and Walter Leitner
Chem. Sci., 2015, DOI: 10.1039/C4SC02087A, Edge Article

Palladium-catalyzed reductive coupling of phenols with anilines and amines: efficient conversion of phenolic lignin model monomers and analogues to cyclohexylamines
Zhengwang Chen, Huiying Zeng, Hang Gong, Haining Wang and Chao-Jun Li
Chem. Sci., 2015, DOI: 10.1039/C5SC00941C, Edge Article

Amorphous molybdenum sulfide films as catalysts for electrochemical hydrogen production in water
Daniel Merki, Stéphane Fierro, Heron Vrubel and Xile Hu
Chem. Sci., 2011, DOI: 10.1039/C1SC00117E, Edge Article

Combination of Ru(II) complexes and light: new frontiers in cancer therapy
Cristina Mari, Vanessa Pierroz, Stefano Ferrari and Gilles Gasser
Chem. Sci., 2015, DOI: 10.1039/C4SC03759F, Perspective

Metal complexes as potential modulators of inflammatory and autoimmune responses
Chung-Hang Leung, Sheng Lin, Hai-Jing Zhong and Dik-Lung Ma
Chem. Sci., 2015, DOI: 10.1039/C4SC03094J, Perspective

Visualizing changes in mitochondrial Mg2+ during apoptosis with organelle-targeted triazole-based ratiometric fluorescent sensors
G. Zhang, J. J. Gruskos, M. S. Afzal and D. Buccella
Chem. Sci., 2015, DOI: 10.1039/C5SC02442K, Edge Article

Porous ionic liquids: synthesis and application
Shiguo Zhang, Kaoru Dokko and Masayoshi Watanabe
Chem. Sci., 2015, DOI: 10.1039/C5SC01374G, Minireview


Chemical Science is the Royal Society of Chemistry’s flagship journal, publishing research articles of exceptional significance and high-impact reviews from across the chemical sciences. It has been gold open access since January 2015. 

Submit your exceptional research to Chemical Science today!

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Top 25 Chemical Science articles April–June 2015

The 25 most-downloaded Chemical Science articles in the second quarter of 2015 were as follows: 

Copper-catalyzed intermolecular C(sp3)–H bond functionalization towards the synthesis of tertiary carbamates
Prasanna Kumara Chikkade, Yoichiro Kuninobu and Motomu Kanai
DOI: 10.1039/C5SC00238A, Edge Article

Palladium(0) NHC complexes: a new avenue to highly efficient phosphorescence
Adam F. Henwood, Mathieu Lesieur, Ashu K. Bansal, Vincent Lemaur, David Beljonne, David G. Thompson, Duncan Graham, Alexandra M. Z. Slawin, Ifor D. W. Samuel, Catherine S. J. Cazin and Eli Zysman-Colman
DOI: 10.1039/C4SC03914A, Edge Article

Rh-catalyzed decarbonylation of conjugated ynones via carbon–alkyne bond activation: reaction scope and mechanistic exploration via DFT calculations
Alpay Dermenci, Rachel E. Whittaker, Yang Gao, Faben A. Cruz, Zhi-Xiang Yu and Guangbin Dong
DOI: 10.1039/C5SC00584A, Edge Article

Sulfonyl fluorides as privileged warheads in chemical biology
Arjun Narayanan and Lyn H. Jones
DOI: 10.1039/C5SC00408J, Perspective

Computational discovery and experimental verification of tyrosine kinase inhibitor pazopanib for the reversal of memory and cognitive deficits in rat model neurodegeneration
Yongliang Yang, Guohui Li, Dongyu Zhao, Haoyang Yu, Xiliang Zheng, Xiangda Peng, Xiaoe Zhang, Ting Fu, Xiaoqing Hu, Mingshan Niu, Xuefei Ji, Libo Zou and Jin Wang
DOI: 10.1039/C4SC03416C, Edge Article

A divergent route to core- and peripherally functionalized diazacoronenes that act as colorimetric and fluorescence proton sensors
Bo He, Jing Dai, Danylo Zherebetskyy, Teresa L. Chen, Benjamin A. Zhang, Simon J. Teat, Qichun Zhang, Linwang Wang and Yi Liu
DOI: 10.1039/C5SC00304K, Edge Article

Spatial imaging of carbon reactivity centers in Pd/C catalytic systems
E. O. Pentsak, A. S. Kashin, M. V. Polynski, K. O. Kvashnina, P. Glatzel and V. P. Ananikov
DOI: 10.1039/C5SC00802F, Edge Article

Chemical assay-guided natural product isolation via solid-supported chemodosimetric fluorescent probe
Hongjun Jeon, Chaemin Lim, Ji Min Lee and Sanghee Kim
DOI: 10.1039/C5SC00360A, Edge Article

Very bright mechanoluminescence and remarkable mechanochromism using a tetraphenylethene derivative with aggregation-induced emission
Bingjia Xu, Jiajun He, Yingxiao Mu, Qiangzhong Zhu, Sikai Wu, Yifan Wang, Yi Zhang, Chongjun Jin, Changcheng Lo, Zhenguo Chi, Alan Lien, Siwei Liu and Jiarui Xu
DOI: 10.1039/C5SC00466G, Edge Article

Stereocontrolled 1,2-cis glycosylation as the driving force of progress in synthetic carbohydrate chemistry
Swati S. Nigudkar and Alexei V. Demchenko
DOI: 10.1039/C5SC00280J, Perspective

Combination of Ru(II) complexes and light: new frontiers in cancer therapy
Cristina Mari, Vanessa Pierroz, Stefano Ferrari and Gilles Gasser
DOI: 10.1039/C4SC03759F, Perspective

Enantioselective synthesis of bicyclo[3.n.1]alkanes by chiral phosphoric acid-catalyzed desymmetrizing Michael cyclizations
Alan R. Burns, Amaël G. E. Madec, Darryl W. Low, Iain D. Roy and Hon Wai Lam
DOI: 10.1039/C5SC00753D, Edge Article

Ratiometric detection of pH fluctuation in mitochondria with a new fluorescein/cyanine hybrid sensor
Yuncong Chen, Chengcheng Zhu, Jiajie Cen, Yang Bai, Weijiang He and Zijian Guo
DOI: 10.1039/C4SC04021J, Edge Article

Enantioselective and diastereoselective azo-coupling/iminium-cyclizations: a unified strategy for the total syntheses of (−)-psychotriasine and (+)-pestalazine B
Qi Li, Tingting Xia, Licheng Yao, Haiteng Deng and Xuebin Liao
DOI: 10.1039/C5SC00338E, Edge Article

Iron(II)-catalyzed asymmetric intramolecular olefin aminochlorination using chloride ion
Cheng-Liang Zhu, Jun-Shan Tian, Zhen-Yuan Gu, Guo-Wen Xing and Hao Xu
DOI: 10.1039/C5SC00221D, Edge Article

Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke, Daniel J. Slotcavage, Emma R. Dohner, Andrea R. Bowring, Hemamala I. Karunadasa and Michael D. McGehee
DOI: 10.1039/C4SC03141E, Edge Article

Evaluating metal–organic frameworks for natural gas storage
Jarad A. Mason, Mike Veenstra and Jeffrey R. Long
DOI: 10.1039/C3SC52633J, Perspective

Enhancing H2 evolution performance of an immobilised cobalt catalyst by rational ligand design
Janina Willkomm, Nicoleta M. Muresan and Erwin Reisner
DOI: 10.1039/C4SC03946G, Edge Article

Dialkylbiaryl phosphines in Pd-catalyzed amination: a user’s guide
David S. Surry and Stephen L. Buchwald
DOI: 10.1039/C0SC00331J, Perspective

Diverse reactivity of a tricoordinate organoboron L2PhB: (L = oxazol-2-ylidene) towards alkali metal, group 9 metal, and coinage metal precursors
Lingbing Kong, Rakesh Ganguly, Yongxin Li and Rei Kinjo
DOI: 10.1039/C5SC00404G, Edge Article

Is a polymer semiconductor having a “perfect” regular structure desirable for organic thin film transistors?
Wei Hong, Shaoyun Chen, Bin Sun, Mark A. Arnould, Yuezhong Meng and Yuning Li
DOI: 10.1039/C5SC00843C, Edge Article

Palladium-catalyzed cross-coupling of α-bromocarbonyls and allylic alcohols for the synthesis of α-aryl dicarbonyl compounds
Yang Yu and Uttam K. Tambar
DOI: 10.1039/C5SC00505A, Edge Article

Charging and discharging at the nanoscale: Fermi level equilibration of metallic nanoparticles
Micheál D. Scanlon, Pekka Peljo, Manuel A. Méndez, Evgeny Smirnov and Hubert H. Girault
DOI: 10.1039/C5SC00461F, Perspective

A highly selective ratiometric near-infrared fluorescent cyanine sensor for cysteine with remarkable shift and its application in bioimaging
Zhiqian Guo, SeongWon Nam, Sungsu Park and Juyoung Yoon
DOI: 10.1039/C2SC20540H, Edge Article

Virtual screening for high affinity guests for synthetic supramolecular receptors
William Cullen, Simon Turega, Christopher A. Hunter and Michael D. Ward
DOI: 10.1039/C5SC00534E, Edge Article


Chemical Science is the Royal Society of Chemistry’s flagship journal, publishing research articles of exceptional significance and high-impact reviews from across the chemical sciences. It has been Gold Open Access since January 2015. 

Submit your exceptional research to Chemical Science today!

Stay up to date with Chemical Science

Be among the first to hear about the newest articles being published – Sign-up to our journal news alert to receive information about most read articles, journal news, as well as calls for papers and invitations.

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Top 25 Chemical Science articles January–March 2015

The 25 most-downloaded Chemical Science articles in the first quarter of 2015 were as follows: 

Rhodium-catalyzed C–H functionalization-based approach to eight-membered lactams
Shangze Wu, Rong Zeng, Chunling Fu, Yihua Yu, Xue Zhang and Shengming Ma
Chem. Sci., 2015,6, 2275-2285, DOI: 10.1039/C5SC00092K, Edge Article 

Exploiting parameter space in MOFs: a 20-fold enhancement of phosphate-ester hydrolysis with UiO-66-NH2
Michael J. Katz, Su-Young Moon, Joseph E. Mondloch, M. Hassan Beyzavi, Casey J. Stephenson, Joseph T. Hupp and Omar K. Farha
Chem. Sci., 2015,6, 2286-2291, DOI: 10.1039/C4SC03613A, Edge Article 

Metal oxidation states in biological water splitting
Vera Krewald, Marius Retegan, Nicholas Cox, Johannes Messinger, Wolfgang Lubitz, Serena DeBeer, Frank Neese and Dimitrios A. Pantazis
Chem. Sci., 2015,6, 1676-1695, DOI: 10.1039/C4SC03720K, Edge Article 

Solid state organic amine detection in a photochromic porous metal organic framework
Arijit Mallick, Bikash Garai, Matthew A. Addicoat, Petko St. Petkov, Thomas Heine and Rahul Banerjee
Chem. Sci., 2015,6, 1420-1425, DOI: 10.1039/C4SC03224A, Edge Article 

C–H arylation of triphenylene, naphthalene and related arenes using Pd/C
Karl D. Collins, Roman Honeker, Suhelen Vásquez-Céspedes, Dan-Tam D. Tang and Frank Glorius
Chem. Sci., 2015,6, 1816-1824, DOI: 10.1039/C4SC03051F, Edge Article 

Adaptive binding and selection of compressed 1,ω-diammonium-alkanes via molecular encapsulation in water
Dan Dumitrescu, Yves-Marie Legrand, Eddy Petit, Arie van der Lee and Mihail Barboiu
Chem. Sci., 2015,6, 2079-2086, DOI: 10.1039/C4SC03945A, Edge Article 

Thymine functionalised porphyrins, synthesis and heteromolecular surface-based self-assembly
Anna G. Slater, Ya Hu, Lixu Yang, Stephen P. Argent, William Lewis, Matthew O. Blunt and Neil R. Champness
Chem. Sci., 2015,6, 1562-1569, DOI: 10.1039/C4SC03531C, Edge Article 

Structure–activity relationship studies of cyclopropenimines as enantioselective Brønsted base catalysts
Jeffrey S. Bandar, Alexandre Barthelme, Alon Y. Mazori and Tristan H. Lambert
Chem. Sci., 2015,6, 1537-1547, DOI: 10.1039/C4SC02402H, Edge Article 

Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke, Daniel J. Slotcavage, Emma R. Dohner, Andrea R. Bowring, Hemamala I. Karunadasa and Michael D. McGehee
Chem. Sci., 2015,6, 613-617, DOI: 10.1039/C4SC03141E, Edge Article 

Macrocycles: lessons from the distant past, recent developments, and future directions
Andrei K. Yudin
Chem. Sci., 2015,6, 30-49, DOI: 10.1039/C4SC03089C, Perspective 

Rh(III)-catalyzed C–H olefination of N-pentafluoroaryl benzamides using air as the sole oxidant
Yi Lu, Huai-Wei Wang, Jillian E. Spangler, Kai Chen, Pei-Pei Cui, Yue Zhao, Wei-Yin Sun and Jin-Quan Yu
Chem. Sci., 2015,6, 1923-1927, DOI: 10.1039/C4SC03350G, Edge Article 

A family of N-heterocyclic carbene-stabilized borenium ions for metal-free imine hydrogenation catalysis
Jeffrey M. Farrell, Roy T. Posaratnanathan and Douglas W. Stephan
Chem. Sci., 2015,6, 2010-2015, DOI: 10.1039/C4SC03675A, Edge Article 

Platinum-decorated carbon nanotubes for hydrogen oxidation and proton reduction in solid acid electrochemical cells
V. Sara Thoi, Robert E. Usiskin and Sossina M. Haile
Chem. Sci., 2015,6, 1570-1577, DOI: 10.1039/C4SC03003F, Edge Article 

Electrophilic bis-fluorophosphonium dications: Lewis acid catalysts from diphosphines
Michael H. Holthausen, Rashi R. Hiranandani and Douglas W. Stephan
Chem. Sci., 2015,6, 2016-2021, DOI: 10.1039/C5SC00051C, Edge Article 

Computational design of molecules for an all-quinone redox flow battery
Süleyman Er, Changwon Suh, Michael P. Marshak and Alán Aspuru-Guzik
Chem. Sci., 2015,6, 885-893, DOI: 10.1039/C4SC03030C, Edge Article 

Topochemical conversion of a dense metal–organic framework from a crystalline insulator to an amorphous semiconductor
S. Tominaka, H. Hamoudi, T. Suga, T. D. Bennett, A. B. Cairns and A. K. Cheetham
Chem. Sci., 2015,6, 1465-1473, DOI: 10.1039/C4SC03295K, Edge Article 

A comprehensive test set of epoxidation rate constants for iron(IV)–oxo porphyrin cation radical complexes
Mala A. Sainna, Suresh Kumar, Devesh Kumar, Simonetta Fornarini, Maria Elisa Crestoni and Sam P. de Visser
Chem. Sci., 2015,6, 1516-1529, DOI: 10.1039/C4SC02717E, Edge Article 

Carbon–hydrogen (C–H) bond activation at PdIV: a Frontier in C–H functionalization catalysis
Joseph J. Topczewski and Melanie S. Sanford
Chem. Sci., 2015,6, 70-76, DOI: 10.1039/C4SC02591A, Minireview 

Synthesis by extrusion: continuous, large-scale preparation of MOFs using little or no solvent
Deborah Crawford, José Casaban, Robert Haydon, Nicola Giri, Tony McNally and Stuart L. James
Chem. Sci., 2015,6, 1645-1649, DOI: 10.1039/C4SC03217A, Edge Article 

Fluorescent/phosphorescent dual-emissive conjugated polymer dots for hypoxia bioimaging
Qiang Zhao, Xiaobo Zhou, Tianye Cao, Kenneth Yin Zhang, Lijuan Yang, Shujuan Liu, Hua Liang, Huiran Yang, Fuyou Li and Wei Huang
Chem. Sci., 2015,6, 1825-1831, DOI: 10.1039/C4SC03062A, Edge Article 

Cu-catalyzed transannulation reaction of pyridotriazoles with terminal alkynes under aerobic conditions: efficient synthesis of indolizines
V. Helan, A. V. Gulevich and V. Gevorgyan
Chem. Sci., 2015,6, 1928-1931, DOI: 10.1039/C4SC03358B, Edge Article 

Highly efficient one-pot/one-step synthesis of multiblock copolymers from three-component polymerization of carbon dioxide, epoxide and lactone
Yang Li, Jiali Hong, Renjian Wei, Yingying Zhang, Zaizai Tong, Xinghong Zhang, Binyang Du, Junting Xu and Zhiqiang Fan
Chem. Sci., 2015,6, 1530-1536, DOI: 10.1039/C4SC03593C, Edge Article 

A hydrazone-based covalent organic framework for photocatalytic hydrogen production
Linus Stegbauer, Katharina Schwinghammer and Bettina V. Lotsch
Chem. Sci., 2014,5, 2789-2793, DOI: 10.1039/C4SC00016A, Edge Article 

Formation of a C–C double bond from two aliphatic carbons. Multiple C–H activations in an iridium pincer complex
Alexey V. Polukeev, Rocío Marcos, Mårten S. G. Ahlquist and Ola F. Wendt
Chem. Sci., 2015,6, 2060-2067, DOI: 10.1039/C4SC03839H, Edge Article 

On the formation of anions: frequency-, angle-, and time-resolved photoelectron imaging of the menadione radical anion
James N. Bull, Christopher W. West and Jan R. R. Verlet
Chem. Sci., 2015,6, 1578-1589, DOI: 10.1039/C4SC03491K, Edge Article 

These articles are all free to download until 6th July. Access is free through a registered RSC account – click here to register 


 

Chemical Science is the Royal Society of Chemistry’s flagship journal, publishing research articles of exceptional significance and high-impact reviews from across the chemical sciences. It has been Gold Open Access since January 2015. The journal’s latest (2013) Impact Factor is 8.6. 

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Top 25 most downloaded Chemical Science articles October–December 2014

Chemical Science Issue 1, 2015 front coverHave you read the 25 most downloaded Chemical Science articles from October–December 2014?

An anti-cancer trinuclear ruthenium(III) complex with 2-thiosalicylate ligands attenuates Wnt-β-catenin signaling
Sharon Lai-Fung Chan, Raymond Wai-Yin Sun, Mei-Yuk Choi, Yibo Zeng, Lam Shek, Stephen Sin-Yin Chui and Chi-Ming Che  
DOI:10.1039/C1SC00203A

Selective affinity-based probe for oncogenic kinases suitable for live cell imaging
Claudio Zambaldo, Kalyan K. Sadhu, Ganesan Karthikeyan, Sofia Barluenga, Jean-Pierre Daguer and Nicolas Winssinger
DOI: 10.1039/C3SC21856B

De novo design and optimization of Aurora A kinase inhibitors
Tiago Rodrigues, Filip Roudnicky, Christian P. Koch, Takayuki Kudoh, Daniel Reker, Michael Detmar and Gisbert Schneider  
DOI: 10.1039/C2SC21842A

A high-spin square-planar Fe(II) complex stabilized by a trianionic pincer-type ligand and conclusive evidence for retention of geometry and spin state in solution
M. E. Pascualini, N. V. Di Russo, A. E. Thuijs, A. Ozarowski, S. A. Stoian, K. A. Abboud, G. Christou and A. S. Veige  
DOI: 10.1039/C4SC02634A
Open Access

Macrocycles: lessons from the distant past, recent developments, and future directions
Andrei K. Yudin
DOI: 10.1039/C4SC03089C
Open Access

Carbon–hydrogen (C–H) bond activation at PdIV: a Frontier in C–H functionalization catalysis
Joseph J. Topczewski and Melanie S. Sanford
DOI: 10.1039/C4SC02591A
Open Access

The application of chiroptical spectroscopy (circular dichroism) in quantifying binding events in lanthanide directed synthesis of chiral luminescent self-assembly structures
Oxana Kotova, Salvador Blasco, Brendan Twamley, John O’Brien, Robert D. Peacock, Jonathan A. Kitchen, Miguel Martínez-Calvo and Thorfinnur Gunnlaugsson  
DOI: 10.1039/C4SC02474E
Open Access

ITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels
Jiuxing Jiang, Yifeng Yun, Xiaodong Zou, Jose Luis Jorda and Avelino Corma 
DOI: 10.1039/C4SC02577F
Open Access

Polycyclic aromatic azomethine ylides: a unique entry to extended polycyclic heteroaromatics
Reinhard Berger, Manfred Wagner, Xinliang Feng and Klaus Müllen  
DOI: 10.1039/C4SC02793K
Open Access

Enantioselective α-amination enabled by a BINAM-derived phase-transfer catalyst
H. M. Nelson, J. S. Patel, H. P. Shunatona and F. D. Toste  
DOI: 10.1039/C4SC02494J
Open Access

“Self-repairing” nanoshell for cell protection
Nan Jiang, Xiao-Yu Yang, Guo-Liang Ying, Ling Shen, Jing Liu, Wei Geng, Ling-Jun Dai, Shao-Yin Liu, Jian Cao, Ge Tian, Tao-Lei Sun, Shi-Pu Li and Bao-Lian Su  
DOI: 10.1039/C4SC02638A
Open Access

Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke, Daniel J. Slotcavage, Emma R. Dohner, Andrea R. Bowring, Hemamala I. Karunadasa and Michael D. McGehee  
DOI: 10.1039/C4SC03141E
Open Access

Diaryldichalcogenide radical cations
Ole Mallow, Monther A. Khanfar, Moritz Malischewski, Pamela Finke, Malte Hesse, Enno Lork, Timo Augenstein, Frank Breher, Jeffrey R. Harmer, Nadezhda V. Vasilieva, Andrey Zibarev, Artem S. Bogomyakov, Konrad Seppelt and Jens Beckmann 
DOI: 10.1039/C4SC02964J
Open Access

Structural study of a small molecule receptor bound to dimethyllysine in lysozyme
Róise E. McGovern, Brendan D. Snarr, Joseph A. Lyons, James McFarlane, Amanda L. Whiting, Irina Paci, Fraser Hof and Peter B. Crowley   
DOI: 10.1039/C4SC02383H
Open Access

Ligand design for Rh(III)-catalyzed C–H activation: an unsymmetrical cyclopentadienyl group enables a regioselective synthesis of dihydroisoquinolones
Todd K. Hyster, Derek M. Dalton and Tomislav Rovis 
DOI: 10.1039/C4SC02590C
Open Access

Annihilation electrogenerated chemiluminescence of mixed metal chelates in solution: modulating emission colour by manipulating the energetics
Emily Kerr, Egan H. Doeven, Gregory J. Barbante, Conor F. Hogan, David J. Bower, Paul S. Donnelly, Timothy U. Connell and Paul S. Francis 
DOI: 10.1039/C4SC02697G
Open Access

Selecting reactions and reactants using a switchable rotaxane organocatalyst with two different active sites
Jack Beswick, Victor Blanco, Guillaume De Bo, David A. Leigh, Urszula Lewandowska, Bartosz Lewandowski and Kenji Mishiro  
DOI: 10.1039/C4SC03279A
Open Access

Tailored chondroitin sulfate glycomimetics via a tunable multivalent scaffold for potentiating NGF/TrkA-induced neurogenesis
Pei Liu, Liwei Chen, Jerry K. C. Toh, Yi Li Ang, Joo-Eun Jee, Jaehong Lim, Su Seong Lee and Song-Gil Lee  
DOI: 10.1039/C4SC02410A
Open Access

Optical and electronic properties of air-stable organoboron compounds with strongly electron-accepting bis(fluoromesityl)boryl groups
Zuolun Zhang, Robert M. Edkins, Jörn Nitsch, Katharina Fucke, Andreas Steffen, Lauren E. Longobardi, Douglas W. Stephan, Christoph Lambert and Todd B. Marder 
DOI: 10.1039/C4SC02410A
Open Access

Ligand functionalization as a deactivation pathway in a fac-Ir(ppy)3-mediated radical addition
James J. Devery III, James J. Douglas, John D. Nguyen, Kevin P. Cole, Robert A. Flowers II and Corey R. J. Stephenson  
DOI: 10.1039/C4SC03064H
Open Access

In vivo visible light-triggered drug release from an implanted depot
Carl-Johan Carling, Mathieu L. Viger, Viet Anh Nguyen Huu, Arnold V. Garcia and Adah Almutairi   
DOI: 10.1039/C4SC02651A
Open Access

Non-equilibrium cobalt(III) “click” capsules
P. R. Symmers, M. J. Burke, D. P. August, P. I. T. Thomson, G. S. Nichol, M. R. Warren, C. J. Campbell and P. J. Lusby  
DOI: 10.1039/C4SC03036B
Open Access

Ultrafast infrared spectroscopy reveals water-mediated coherent dynamics in an enzyme active site
Katrin Adamczyk, Niall Simpson, Gregory M. Greetham, Andrea Gumiero, Martin A. Walsh, Michael Towrie, Anthony W. Parker and Neil T. Hunt  
DOI: 10.1039/C4SC02752C
Open Access

A counteranion triggered arylation strategy using diaryliodonium fluorides
L. Chan, A. McNally, Q. Y. Toh, A. Mendoza and M. J. Gaunt
DOI: 10.1039/C4SC02856B
Open Access

Transition-metal-free controlled polymerization for poly(p-aryleneethynylene)s
Takanobu Sanji, Asahi Motoshige, Hideaki Komiyama, Junko Kakinuma, Rie Ushikubo, Satoru Watanabe and Tomokazu Iyoda 
DOI: 10.1039/C4SC02872D
Open Access


Chemical Science is the Royal Society of Chemistry’s flagship journal, publishing research articles of exceptional significance and high-impact reviews from across the chemical sciences. It has been Gold Open Access since January 2015. The journal’s latest (2013) Impact Factor is 8.6. Research in Chemical Science is not only of the highest quality but also has excellent visibility: this is reflected in our latest citation profile.

Submit your exceptional research to Chemical Science today!

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Top 25 most-read Chemical Science articles in 2013

Chemical Science coverHave you seen the most-read Chemical Science articles from 2013?

Intramolecular C(sp3)–H amination
Jenna L. Jeffrey and Richmond Sarpong
DOI: 10.1039/C3SC51420J

Dialkylbiaryl phosphines in Pd-catalyzed amination: a user’s guide
David S. Surry and Stephen L. Buchwald
DOI: 10.1039/C0SC00331J

The role of organometallic copper(III) complexes in homogeneous catalysis

Alicia Casitas and Xavi Ribas
DOI: 10.1039/C3SC21818J

Design and preparation of new palladium precatalysts for C–C and C–N cross-coupling reactions
Nicholas C. Bruno, Matthew T. Tudge and Stephen L. Buchwald
DOI: 10.1039/C2SC20903A

Chelation-assisted Rh(III)-catalyzed C2-selective oxidative C–H/C–H cross-coupling of indoles/pyrroles with heteroarenes
Xurong Qin, Hu Liu, Dekun Qin, Qian Wu, Jingsong You, Dongbing Zhao, Qiang Guo, Xiaolei Huang and Jingbo Lan
DOI: 10.1039/C3SC22241A

A robust protocol for Pd(II)-catalyzed C-3 arylation of (1H) indazoles and pyrazoles: total synthesis of nigellidine hydrobromide
Mengchun Ye, Andrew J. F. Edmunds, James A. Morris, David Sale, Yejia Zhang and Jin-Quan Yu DOI: 10.1039/C3SC50184A

N-Heterocyclic carbene (NHC)–copper-catalysed transformations of carbon dioxide
Liang Zhang and Zhaomin Hou
DOI: 10.1039/C3SC51070K

Chiral organic contact ion pairs in metal-free catalytic enantioselective oxidative cross-dehydrogenative coupling of tertiary amines to ketones
Gen Zhang, Yunxia Ma, Shoulei Wang, Weidong Kong and Rui Wang
DOI: 10.1039/C3SC50604E

Carbofluorination via a palladium-catalyzed cascade reaction
Marie-Gabrielle Braun, Matthew H. Katcher and Abigail G. Doyle
DOI: 10.1039/C2SC22198E

Pd(II)-catalyzed alkoxylation of unactivated C(sp3)–H and C(sp2)–H bonds using a removable directing group: efficient synthesis of alkyl ethers
Fa-Jie Chen, Sheng Zhao, Fang Hu, Kai Chen, Qi Zhang, Shuo-Qing Zhang and Bing-Feng Shi
DOI: 10.1039/C3SC51993G

Pd-catalyzed oxidative C–H/C–H cross-coupling of pyridines with heteroarenes
Bo Liu, Yumin Huang, Jingbo Lan, Feijie Song and Jingsong You
DOI: 10.1039/C3SC50348H

Catalytic hydrotrifluoromethylation of styrenes and unactivated aliphatic alkenes via an organic photoredox system
Dale J. Wilger, Nathan J. Gesmundo and David A. Nicewicz
DOI: 10.1039/C3SC51209F

Rethinking the term “pi-stacking”
Chelsea R. Martinez and Brent L. Iverson
DOI: 10.1039/C2SC20045G

One-shot indole-to-carbazole π-extension by a Pd–Cu–Ag trimetallic system
Kyohei Ozaki, Hua Zhang, Hideto Ito, Aiwen Lei and Kenichiro Itami
DOI: 10.1039/C3SC51447A

Photoelectrochemical properties of LaTiO2N electrodes prepared by particle transfer for sunlight-driven water splitting
Tsutomu Minegishi, Naoyuki Nishimura, Jun Kubota and Kazunari Domen
DOI: 10.1039/C2SC21845C

Rhodium-catalyzed enantioselective cyclopropanation of electron-deficient alkenes
Hengbin Wang, David M. Guptill, Adrian Varela-Alvarez, Djamaladdin G. Musaev and Huw M. L. Davies
DOI: 10.1039/C3SC50425E

Aminocatalytic remote functionalization strategies
Hao Jiang, Łukasz Albrecht and Karl Anker Jørgensen
DOI: 10.1039/C3SC50405K

Palladium-catalyzed coupling of functionalized primary and secondary amines with aryl and heteroaryl halides: two ligands suffice in most cases
Debabrata Maiti, Brett P. Fors, Jaclyn L. Henderson, Yoshinori Nakamura and Stephen L. Buchwald
DOI: 10.1039/C0SC00330A

On the role of anionic ligands in the site-selectivity of oxidative C–H functionalization reactions of arenes
Italo A. Sanhueza, Anna M. Wagner, Melanie S. Sanford and Franziska Schoenebeck
DOI: 10.1039/C3SC00017F

Copper-mediated trifluoromethylation of propiolic acids: facile synthesis of α-trifluoromethyl ketones
Zhengbiao He, Rui Zhang, Mingyou Hu, Lingchun Li, Chuanfa Ni and Jinbo Hu
DOI: 10.1039/C3SC51613J

Synergistic catalysis: A powerful synthetic strategy for new reaction development
Anna E. Allen and David W. C. MacMillan
DOI: 10.1039/C2SC00907B

Ruthenium-catalyzed ortho-C–H bond alkylation of aromatic amides with α,β-unsaturated ketones via bidentate-chelation assistance
Guy Rouquet and Naoto Chatani
DOI: 10.1039/C3SC50310K

Development of a generic activation mode: nucleophilic α-substitution of ketones via oxy-allyl cations
Mark N. Vander Wal, Andrew K. Dilger and David W. C. MacMillan
DOI: 10.1039/C3SC51266E

Rh(III)-catalyzed C–H activation/cycloaddition of benzamides and methylenecyclopropanes: divergence in ring formation

Sunliang Cui, Yan Zhang and Qifan Wu
DOI: 10.1039/C3SC51424B

Cross coupling of thioethers with aryl boroxines to construct biaryls via Rh catalyzed C–S activation
Fei Pan, Hui Wang, Peng-Xiang Shen, Jing Zhao and Zhang-Jie Shi
DOI: 10.1039/C3SC22242J


Chemical Science is the Royal Society of Chemistry’s flagship journal; publishing research articles of exceptional significance and high-impact reviews from across the chemical sciences. The journal’s latest (2012) Impact Factor is 8.3. Research in Chemical Science is not only of the highest quality but also has excellent visibility; this is reflected in our latest citation profile.

Submit your exceptional research to Chemical Science today!

Stay up to date with Chemical Science

Be among the first to hear about the newest articles being published – Sign-up to our journal news alert to receive information about most read articles, journal news, as well as calls for papers and invitations.

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Top ten most accessed articles July-September 2013

The 10 most accessed Chemical Science articles between July and September 2013 were as follows:

Intramolecular C(sp3)–H amination
Jenna L. Jeffrey and Richmond Sarpong
Chem. Sci., 2013,4, 4092-4106
DOI: 10.1039/c3sc51420j

Pd(ii)-catalyzed alkoxylation of unactivated C(sp3)–H and C(sp2)–H bonds using a removable directing group: efficient synthesis of alkyl ethers
Fa-Jie Chen, Sheng Zhao, Fang Hu, Kai Chen, Qi Zhang, Shuo-Qing Zhang and Bing-Feng Shi  
Chem. Sci., 2013,4, 4187-4192
DOI: 10.1039/c3sc51993g

1,2,3-Triazoles as versatile directing group for selective sp2 and sp3 C–H activation: cyclization vs substitution
Xiaohan Ye, Zhengrong He, Tonia Ahmed, Keith Weise, Novruz G. Akhmedov, Jeffrey L. Petersen and Xiaodong Shi  
Chem. Sci., 2013,4, 3712-3716
DOI: 10.1039/c3sc51211h

Benzofuran synthesis via copper-mediated oxidative annulation of phenols and unactivated internal alkynes
Ruyi Zhu, Jiangbo Wei and Zhangjie Shi  
Chem. Sci., 2013,4, 3706-3711
DOI: 10.1039/c3sc51489g

Pd(ii)-catalyzed alkylation of unactivated C(sp3)–H bonds: efficient synthesis of optically active unnatural a-amino acids
Kai Chen, Fang Hu, Shuo-Qing Zhang and Bing-Feng Shi  
Chem. Sci., 2013,4, 3906-3911
DOI: 10.1039/c3sc51747k

Palladium-catalyzed heteroallylation of unactivated alkenes – synthesis of citalopram
Joanne F. M. Hewitt, Lewis Williams, Pooja Aggarwal, Craig D. Smith and David J. France  
Chem. Sci., 2013,4, 3538-3543
DOI: 10.1039/c3sc51222c

Gold(i)-catalyzed enantioselective bromocyclization reactions of allenes
Dillon H. Miles, Marcos Veguillas and F. Dean Toste  
Chem. Sci., 2013,4, 3427-3431
DOI: 10.1039/c3sc50811k

Dialkylbiaryl phosphines in Pd-catalyzed amination: a user’s guide
David S. Surry and Stephen L. Buchwald  
Chem. Sci., 2011,2, 27-50
DOI: 10.1039/c0sc00331j

“Phosphite–urea” cooperative high-turnover catalysts for the highly selective bromocyclization of homogeranylarenes
Yasuhiro Sawamura, Hidefumi Nakatsuji, Akira Sakakura and Kazuaki Ishihara  
Chem. Sci., 2013,4, 4181-4186
DOI: 10.1039/c3sc51432c

Prediction of suitable catalyst by 1H NMR: asymmetric synthesis of multisubstituted biaryls by chiral phosphoric acid catalyzed asymmetric bromination
Keiji Mori, Yuki Ichikawa, Manato Kobayashi, Yukihiro Shibata, Masahiro Yamanaka and Takahiko Akiyama  
Chem. Sci., 2013,4, 4235-4239
DOI: 10.1039/c3sc52142g

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Top 10 most-accessed articles April–June 2013

The 10 most-accessed Chemical Science articles between April and June 2013 were as follows:

Rhodium-catalyzed enantioselective cyclopropanation of electron-deficient alkenes
Hengbin Wang, David M. Guptill, Adrian Varela-Alvarez, Djamaladdin G. Musaev and Huw M. L. Davies  
Chem. Sci., 2013,4, 2844-2850
DOI: 10.1039/C3SC50425E, Edge Article

Photoelectrochemical properties of LaTiO2N electrodes prepared by particle transfer for sunlight-driven water splitting
Tsutomu Minegishi, Naoyuki Nishimura, Jun Kubota and Kazunari Domen  
Chem. Sci., 2013,4, 1120-1124
DOI: 10.1039/C2SC21845C, Edge Article

Metal-free oxidative tandem coupling of activated alkenes with carbonyl C(sp2)–H bonds and aryl C(sp2)–H bonds using TBHP
Ming-Bo Zhou, Ren-Jie Song, Xuan-Hui Ouyang, Yu Liu, Wen-Ting Wei, Guo-Bo Deng and Jin-Heng Li  
Chem. Sci., 2013,4, 2690-2694
DOI: 10.1039/C3SC50810B, Edge Article

Catalytic hydrotrifluoromethylation of styrenes and unactivated aliphatic alkenes via an organic photoredox system
Dale J. Wilger, Nathan J. Gesmundo and David A. Nicewicz  
Chem. Sci., 2013,4, 3160-3165
DOI: 10.1039/C3SC51209F, Edge Article

On the role of anionic ligands in the site-selectivity of oxidative C–H functionalization reactions of arenes
Italo A. Sanhueza, Anna M. Wagner, Melanie S. Sanford and Franziska Schoenebeck  
Chem. Sci., 2013,4, 2767-2775
DOI: 10.1039/C3SC00017F, Edge Article

N-Heterocyclic carbene (NHC)–copper-catalysed transformations of carbon dioxide
Liang Zhang and Zhaomin Hou  
Chem. Sci., 2013,4, 3395-3403
DOI: 10.1039/C3SC51070K, Minireview

Highly porous and stable metal–organic frameworks for uranium extraction
Michaël Carboni, Carter W. Abney, Shubin Liu and Wenbin Lin  
Chem. Sci., 2013,4, 2396-2402
DOI: 10.1039/C3SC50230A, Edge Article

Development of a generic activation mode: nucleophilic α-substitution of ketones via oxy-allyl cations
Mark N. Vander Wal, Andrew K. Dilger and David W. C. MacMillan  
Chem. Sci., 2013,4, 3075-3079
DOI: 10.1039/C3SC51266E, Edge Article

Rh(III)-catalyzed ortho-oxidative alkylation of unactivated arenes with allylic alcohols
Liangbin Huang, Qian Wang, Ji Qi, Xia Wu, Kefan Huang and Huanfeng Jiang  
Chem. Sci., 2013,4, 2665-2669
DOI: 10.1039/C3SC50630D, Edge Article

Chiral organic contact ion pairs in metal-free catalytic enantioselective oxidative cross-dehydrogenative coupling of tertiary amines to ketones
Gen Zhang, Yunxia Ma, Shoulei Wang, Weidong Kong and Rui Wang  
Chem. Sci., 2013,4, 2645-2651
DOI: 10.1039/C3SC50604E, Edge Article

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