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

19 Aug 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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HPLC-free synthesis slashes protein production time

27 Jul 2016

Chemists in Germany have devised a faster, cheaper and greener way to synthesise proteins which avoids the need to use high pressure liquid chromatography (HPLC).

Being able to chemically synthesise proteins from scratch allows them to be modified with atom-by-atom precision, and in ways that are not possible in nature. For example, researchers can introduce non-natural amino acids into proteins or tag them with fluorescent markers.

Graphical Abstract

Read the full article in Chemistry World >>>

Total chemical synthesis of proteins without HPLC purification

S. F. Loibl, Z. Harpaz, R. Zitterbart and O. Seitz

Chem. Sci., 2016, Advance Article

DOI: 10.1039/C6SC01883A, Edge Article

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Shape-shifting hydrogel can heal itself

26 Jul 2016

A shape-memory hydrogel that also has self-healing properties has been developed by scientists in China. The new material can repair itself and return to its original shape even after being cut into segments.

Both self-healing and shape-memory polymers have many potential uses, including in aerospace, textiles and biomedicine. Now, a team lead by Tao Chen and Jiawei Zhang from the Ningbo Institute of Material Technology and Engineering has developed a material that combines both of these useful properties.

The hydrogel is produced by polymerising acrylamide in the presence of a boronic acid-grafted alginate and poly(vinyl alcohol). After immersion in calcium chloride solution, the polymer is strengthened by the reversible double network of boronic acid-diol ester bonds, and chelation of the alginate chains with the calcium cations.

Graphical Abstract

Read the full article in Chemistry World >>>

Stretchable supramolecular hydrogels with triple shape memory effect
Xiaoxia Le, Wei Lu, Jing Zheng, Dingyi Tong, Ning Zhao, Chunxin Ma, He Xiao, Jiawei Zhang, Youju Huang and Tao Chen
Chem. Sci., 2016, Advance Article
DOI: 10.1039/C6SC02354A, Edge Article

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As easy as TT

14 Jun 2016

Scientists’ discovery that π electron repulsion is more important than previously thought might change our understanding of conjugation. The effect is behind peculiar irregularities in bond lengths and resonance energies of conjugated molecules that our textbooks cannot explain.

Conjugated molecules like 1,3-pentadiene have π electrons that are delocalised across several bonds. Conjugation lowers a molecule’s overall energy and makes it more stable. However, a few years ago, researchers from Long Island University, US, claimed that conjugation could actually destabilise some molecules. They calculated cyanogen (NC–CN) to be less stable than its non-conjugated analogue ethylenediamine (H₂NCH₂–CH₂NH₂). Many researchers have tried to disprove this, but so far, no one has been able to give a simple explanation for these apparently counterintuitive results.

Graphical Abstract

Read the full article in Chemistry World>>>

Intramolecular multi-bond strain: the unrecognized side of the dichotomy of conjugated systems

Yirong Mo, Huaiyu Zhang, Peifeng Su, Peter D. Jarowski and Wei Wu

Chem. Sci., 2016, Advance Article

DOI: 10.1039/C6SC00454G, Edge Article

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