Author Archive

NJC issue 5 out!

We invite you to visit the May issue of NJC.

An article by Kazuyuki Kuroda and co-workers (Waseda University, Tokyo, Japan) features on this month’s front cover. In this publication, the authors report the synthesis of a novel air-stable spherosilicate oligomer that can be trimethylsilylated leading to further chemical modification or condensed upon thermal-treatment to afford molecularly ordered hybrids. This silicate oligomer is an attractive building block for the preparation of silica-based nanomaterials such as metallosilicates or mesostructured materials.

“A spherosilicate oligomer with eight stable silanol groups as a building block of hybrid materials”, Kazufumi Kawahara, Hiroki Tachibana, Yoshiaki Hagiwara and Kazuyuki Kuroda New J. Chem., 2012, 36, 1210-1217. DOI: 10.1039/C2NJ20953E (Paper).

 

The inside cover was produced by Monika Stolar and Thomas Baumgartner (University of Calgary, Canada), presenting a series of donor/acceptor functionalized π-conjugated materials, in which the donor component is a 3(6)-carbazole unit and the acceptor component a 2(6)-dithienophosphole species. The new chromophores display a desirable and reversible stimulus-responsive behaviour with a significant red shift of the absorption and emission wavelengths in the presence of acids.

“Synthesis and unexpected halochromism of carbazole-functionalized dithienophospholes”, Monika Stolar and Thomas Baumgartner New J. Chem., 2012, 36, 1153-1160. DOI: 10.1039/C2NJ40022G (Paper).

You can access and read the whole issue 5 here. Why not sign-up for our table of contents e-alerts today to receive NJC issues direct to your inbox?

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Easy manipulation of surface properties

In their NJC paper, Mark G. Moloney and co-workers (University of Oxford, UK) showed that derivatisation of polystyrene by carbene insertions followed by diazonium coupling provides access to materials with similar bulk properties, but with various surface chemical characteristics. The controlled modification of chemical functionality at the surface results in changes in macroscopic polymer behaviour such as wettability and protein binding. These results are of immediate relevance for the design of new biomaterial and drug delivery devices.

post-polymerisation modification


“Post-polymerisation modification of surface chemical functionality and its effect on protein binding”
Cleo Choong , J. S. Foord , Jon-Paul Griffiths , Emily M. Parker , Luo Baiwen , Meghali Bora and Mark G. Moloney, New J. Chem., 2012, Advance Article.DOI: 10.1039/C2NJ00002D.

Interested to know more? Why not read by accessing the full article now! This “Hot article” will be FREE to access for a period of 4 weeks.

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Extended azaheterocycles: flat but not dull !

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NJC Issue 1 out now !

We welcome you to NJC’s first issue of 2012. The new year gets off to a good start with the publication of high-quality, original and significant research works that display photosensitizers, dynamic combinatorial libraries, ab initio calculations, quantum dots, molecular magnets and much more.


The outside front cover highlights a contribution from Cristina Silva Pereira et al. (Universidade Nova de Lisboa, Portugal and Queen’s University of Belfast, UK) that was aimed at defining the mechanism of toxicity of alkyltributylphosphonium chlorides [P4 4 4 n]Cl (n = 1, 3–8, 10, 12 or 14) in conidia of the filamentous fungus Aspergillus nidulans. Systematic elongation of one of the alkyl substituents resulted generally in higher toxicity, as defined by their inhibitory and lethal effects. In this study, fluorescence microscopy is proposed as a direct method for assessing the impact of ionic liquids on the plasma membrane integrity. Data were complemented by microscopic evaluation of the conidia cell wall and morphology. The higher toxicity of phosphonium ionic liquids carrying long alkyl substituents is most likely due to their strong interaction with the conidia cellular boundaries.


“Unravelling the mechanism of toxicity of alkyltributylphosphonium chlorides in Aspergillus nidulans conidia”, Marija Petkovic, Diego O. Hartmann, Gabriela Adamová, Kenneth R. Seddon, Luís Paulo N. Rebelo and Cristina Silva Pereira, New J. Chem., 2012, 36, 56-63, DOI: 10.1039/C1NJ20470J.


NJC issue 1, 2012 inside front cover was produced by Dr Mike P. Coogan (Cardiff University, UK), Prof Lallan Mishra (Banaras Hindu University, India) and co-workers. In this research article, the authors describe the synthesis and study of a range of rhenium complexes appended through the axial pyridine ligand with groups known to direct cellular localisation. These complexes retain both their useful DNA binding and photophysical properties, while gaining the organelle specific-localisation desired. The imaging studies suggest that such complexes may be used as probes for oligonucleotides in specific cellular compartments (e.g. mitochondrial DNA). In addition, this study demonstrates that cellular localisation parameters are a vital consideration when designing probes to be applied in vivo.

“The importance of cellular localisation of probes: synthesis, photophysical properties, DNA interactions and cellular imaging properties of rhenium dppz complexes with known cellular localisation vectors”, Flora L. Thorp-Greenwood, Michael P. Coogan, Lallan Mishra, Niraj Kumari, Geeta Rai and Srikrishna Saripella, New J. Chem., 2012, 36, 64-72, DOI: 10.1039/C1NJ20662A.


You can access and read the whole issue available online at: NJC 2012, Issue 1. Leave us a comment and let us know what you think!


We wish you a happy new year 2012!

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Meet Our Authors – December 2011

Here is a selection of author profiles from the December issue of NJC. We thank them most warmly for accepting our invitation and having kindly taken some of their time to answer a few questions for us.

Our first author is Roser Pleixats, who is Full Professor for Organic Chemistry at the Faculty of Sciences of the Universitat Autònoma de Barcelona, Spain. Her current research interests focus on organometallic chemistry, catalyst recycling, metal nanoparticles and hybrid silica materials for catalysis (cross-coupling, metathesis, organocatalysis, …). Her latest contribution to NJC has been developed in collaboration with two other research groups and joints experiences in asymmetric catalysis and sol-gel chemistry. The paper describes a chiral prolinamide-based organosilica prepared by sol-gel methodology which presents similar performances to homogeneous related analogues in direct asymmetric aldol reactions, with the added advantages of easy recovery and good recyclability. It also fits green chemistry requirements as the reactions are performed with low catalyst loadings, in water, at room temperature.

Her previous positive experiences with this journal and also the quality and interdisciplinary nature of the articles published in NJC, directed to a diverse readership, was Roser’s motivation behind her submission to the journal.

Besides the lab, Roser enjoys reading, travelling, going to the cinema and theatre.  "I loved some holidays with my family in the green and peaceful Scotland, in the bright Mediterranean landscape of Sicily, an island full of art, archaeology and history, scenery of mythical films, or in the cosmopolitan New York, where you never feel as a foreigner and where I could be wandering for days in the charming streets of the Greenwich Village", said Roser.When asked for an alternative career path if not a scientist, Roser answered: "I would have liked to have the talent to be a good writer".

“Prolinamide bridged silsesquioxane as an efficient, eco-compatible and recyclable chiral organocatalyst”, Amàlia Monge-Marcet, Roser Pleixats, Xavier Cattoën, Michel Wong Chi Man, Diego A. Alonso and Carmen Nájera, New J. Chem., 2011, 35, 2766-2772, DOI: 10.1039/C1NJ20516A.

Frédéric Paul is CNRS Research Director at the « Sciences Chimiques de Rennes » Institute, France. He is currently working in the field of molecular photonics and electronics, in particular organometallic and organic molecular architectures that exhibit specific photonic or redox properties optimized for a given task. In this NJC paper, the motivation was to develop new classes of functional ligands featuring an organometallic redox-active substituent (also named metallo-ligands) for which the reversible oxidation might be used to control the reactivity of a complex to which this ligand is coordinated. The authors hoped to control the reactivity of the active species in a cross-coupling catalytic transformation by changing the redox state of the organometallic substituent of the metallo-ligand. Unfortunately, in this attempt, the lack of inertness of the reaction medium prevented the observation of significant changes following oxidation. The synthesis of a series of new triarylphosphane-based metallo-ligands is nevertheless reported and further attempts to use them in other reactions are in progress.

On choosing NJC to publish this work, Fréderic comments that: “In order to reach the largest possible readership that might be interested by the results of our investigation, we needed to submit our findings to a quite general journal that covers a large panel of topics and chemicals species.”

Outside of the lab, Frédéric multiplies the activities, including trekking in the wilderness or discovering/visiting new places with his wife and three kids. If he could not be a scientist, he would be someone working with books, maybe a book seller in a book store or a documentalist in a library.

“Stille-type aryl–aryl cross-coupling catalysis using triarylphosphine ligands with electron-rich Fe(II)-alkynyl substituents”, Guillaume Grelaud, Ayham Tohmé, Gilles Argouarch, Thierry Roisnel and Frédéric Paul, New J. Chem., 2011, 35, 2740-2742, DOI: 10.1039/C1NJ20480G.

Closing this month’s selection, we are pleased to present Junhua Luo, Professor of Chemistry at the Fujian Institute of Research on the Structure of Matter (FJIRSM), which is located in Fuzhou, the capital of the Fujian province, China. Junhua obtained his Ph.D. from the FJIRSM in 2003 under the supervision of CAS (Chinese Academy of Science) Distinguished Professor Maochun Hong and then returned to the FJIRSM  under the CAS "Hundred of Talents Program" after five and a half years' postdoctoral stay in the USA. Junhua research focuses on molecule-based opto-electrical materials including luminescent, ferroelectric and nonlinear optical (NLO) materials. His NJC paper presents the synthesis, bulk crystal growth, and crystal structure of a novel third-order NLO crystal based on the organic borate carboxylate ester. This work is the fruit of a collaboration between his research group and Dr. Ning-ning Cai (State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong Univerity), Dr. Jing-wei Chen (Department of Optics, Shandong University), and Prof. Ren-Gen Xiong (Southeast University).

“I feel very happy that this interdisciplinary research work, involving coordination chemistry, crystallography, and optical sciences is reported in NJC, which publishes very diverse and high quality articles .”, says Junhua.

Hiking with his family including his two lovely young daughters, Lisa and Jennifer, and playing badminton with his group colleagues and students every saturday afternoon are Junha's favorites activities outside the lab. If not be a scientist, Junhua would be a middle-school chemistry teacher since he obtained his bachelor of chemistry education in 1997 from Jiangxi Normal University.

“Synthesis, growth and characterization of a third-order nonlinear optical crystal based on the borate ester with sodium supporting its structural framework”, Zhihua Sun, Tianliang Chen, Ning-ning Cai, Jing-wei Chen, Lina Li, Yan Wang, Junhua Luo and Maochun Hong, New J. Chem., 2011, 35, 2804-2810, DOI: 10.1039/C1NJ20420C.

We wish you a happy holiday season and see you next month for more!

Fancy submitting an article to NJC? Then why not submit to us today or alternatively email us your suggestions.
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An unusual route to molecular magnets

Oxidized phthalocyanines are widely used in the design of optical, magnetic and conducting materials.

In this NJC Letter, Dmitri V. Konarev and co-workers (Institutes of Problems of Chemical Physics and Solid State Physics, Russia) demonstrated that the reduction of phthalocyanines with strong metallocene donors like decamethylchromocene can also lead to the preparation of molecular magnets. In particular, the negatively charged iron phthalocyanine (Cp*2Cr+)(FeIPc)(C6H4Cl2)4 is a soft ferrimagnet showing hysteresis with a small coercive field and a bifurcation temperature of about 5 K.

This original strategy should allow the extension of the molecular-based magnet family by exploiting metal-containing and metal-free phthalocyanines.

“Structure and magnetic properties of ionic compound (Cp*2Cr+)·(FeIPc−)·(C6H4Cl2)4 containing negatively charged iron phthalocyanine”, Dmitri V. Konarev, Leokadia V. Zorina, Salavat S. Khasanov, El’za U. Hakimova and Rimma N. Lyubovskaya, New J. Chem., 2012, Advance Article, DOI: 10.1039/C1NJ20858F.

Interested to know more? Why not read by accessing the full article now! This “Hot article” will be FREE to access for a period of 4 weeks.



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CNFs Electrodes: easier, larger, faster !

In this NJC paper, Sophie Tingry and co-workers (Institut Européen des Membranes at Montpellier, France) prepared a carbon nanofibers (CNFs) electrode through electrospinning of a polyacrylonitrile solution and subsequent thermal carbonization treatment.

The CNFs-based electrode was successfully used as support for enzyme (laccase) immobilization and applied to bioelectrocatalytic O2 reduction. Besides its easy handling, the excellent structural stability and surface properties of the CNFs electrode improved the electron transfer rate at the electrode surface and increased the accessible surface area of the electrode, therefore allowing a higher loading of active enzyme.

These nanomaterials are promising candidates as enzymatic cathodes in biofuel cell devices.

“Fabrication of free-standing electrospun carbon nanofibers as efficient electrode materials for bioelectrocatalysis”, Ai-Fu Che, Vincent Germain, Marc Cretin, David Cornu, Christophe Innocent and Sophie Tingry, New J. Chem., 2011, Advance Article, DOI: 10.1039/C1NJ20651F.

Take time to have a look at it now ! Highly rated by the reviewers and the editorial office, this “Hot Article” will be FREE to access for a period of 4 weeks

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Towards an artificial chlorosome

The approaches developed previously to mimic chlorosomal assembly and function (with potential applications that include, for instance, the creation of photosynthesis-inspired solar cells) rely on (i) modification of naturally occurring tetrapyrrole macrocycles and (ii) synthesis and derivatization of porphyrins. In this NJC paper, researchers from Raleigh (North Carolina State University), St. Louis (Washington University), and Riverside (University of California) propose a third approach with the design and preparation of hydroporphyrins. Altogether, 30 new macrocycles were successfully synthesized, characterized and studied. The authors claim that this de novo strategy allows a fine tuning of the steric and electronic characteristics of the synthetic bacteriochlorophyll mimics.


“De novo synthesis and properties of analogues of the self-assembling chlorosomal bacteriochlorophylls” Olga Mass, Dinesh R. Pandithavidana, Marcin Ptaszek, Koraliz Santiago, Joseph W. Springer, Jieying Jiao, Qun Tang, Christine Kirmaier, David F. Bocian, Dewey Holten and Jonathan S. Lindsey New J. Chem., 2011, Advance Article. DOI: 10.1039/C1NJ20611G

Interested to know more? Why not download and read the article today! It’s recently been published in NJC and will be FREE to access for a period of 4 weeks.

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Meet Our Authors – August 2011

Here is a selection of author profiles from the August issue of NJC. The editorial team would like to warmly thank them for accepting the invitation, giving us the opportunity to know some of our fellow chemists a little better.

Our first author is Stefan Bräse, who is Full Professor for Organic Chemistry and has been the Dean of the Faculty of Chemistry and Biochemistry for four consecutive years at the Karlsruhe Institute of Technology (KIT) in Karlsruhe, Germany. His research interests cover a wide range of organic chemistry reaching from total synthesis over solid phase chemistry to molecular transporters and carbohydrate chemistry. For some time now, Stefan Bräse has also been interested in nanosciences with a special focus on material chemistry. He is an active member of the Center for Functional Nanostructures (CFN) and, very recently, the Karlsruhe School of Optics and Photonic (KSOP) within the KIT. His latest contribution to NJC is a joint research project with colleagues from the KIT and Italy and deals with the generation and characterization of a Hyper-Cross-linked Polymer via Click chemistry. An adamantane based HCP exhibits efficient CO2 capture at low pressure

Besides the lab Stefan enjoys gardening around his recently finished house and spending time with his wife and their 10 months old son. Stefan is also keen on taking part in his group’s famous summer barbecue evenings.

“Click chemistry produces hyper-cross-linked polymers with tetrahedral cores”, Oliver Plietzsch, Christine I. Schilling, Tobias Grab, Stephan L. Grage, Anne S. Ulrich, Angiolina Comotti, Piero Sozzani, Thierry Muller and Stefan Bräse, New J. Chem., 201135, 1577-1581. DOI: 10.1039/C1NJ20370C.




Scott McIndoe is Associate Professor at the University of Victoria, Canada. He is currently working in the field organometallic catalyst discovery using ESI-MS . In this NJC paper, Scott and coworkers were interested in ensuring that their ESI-MS results are representative of solution speciation, and they discovered some interesting phenomena when exploring the degree to which they could leave ions partially solvated. They found that some fundamental solution properties of ions, notably their acidity, are reflected in their gas-phase behavior.

On choosing NJC to publish this work, Scott comments that “It touches on a broad range of topics, from the lanthanide contraction to ion acidity to the details of the electrospray ionisation mechanism, so we thought it deserved a broad audience”.

Outside of the lab, getting his hands dirty designing, making, and growing things is Scott’s favorite activity. If he could not be a scientist, he would be a professional cricketer.

“Blurring the line between solution and the gas phase: collision-induced dissociation of hypersolvated lanthanide trications provides insights into solution acidity”, Jennifer Pape, Keri McQuinn, Fraser Hof and J. Scott McIndoe, New J. Chem., 201135, 1582-1587. DOI: 10.1039/C1NJ20105K.

The next author is Plinio Innocenzi, Full Professor of Materials Science and Head of the Materials Science and Nanotechnology Laboratory at the University of Sassari, Italy. His research group is currently working on self-assembled nanomaterials, hybrid sol-gel materials for photonics, and X-ray lithography for soft matter. In their paper, Plinio and his team explore the possibility of using self-assembly to fabricate hierarchical porous materials as a very challenging road to master complexity. They believe that controlling the porosity in a material in terms of size and shape through a one-pot synthesis is a little step forward to get more complex materials.

The wide diffusion of NJC, with a particular attention to innovative nanochemistry synthesis, was Plinio’s motivation behind his submission to the journal.

Outside the lab, Plinio appreciates spending time with my family. Beside this he really like swimming : “I swim a couple of km almost every day, this is a very nice way of relaxing and thinking about science. I like also reading and sailing (sometimes at the same time…).” Because Plinio is so much happy to be a scientist, he cannot imagine to do anything else.

“Controlling shape and dimensions of pores in organic–inorganic films: nanocubes and nanospheres”, Plinio Innocenzi, Luca Malfatti, Daniela Marongiu and Maria F. Casula, New J. Chem., 201135, 1624-1629. DOI: 10.1039/C1NJ20186G.

Closing this month’s selection, we are pleased to present Michael H. Abraham, Honorary Professor at the University College London, UK. Michael research focuses on physical organic chemistry, especially as applied to environmental chemistry and medicinal/pharmaceutical chemistry. His paper contributes to the considerable discussion on the role of ion pairs in water-solvent partition and in membrane partition and permeation. It has been difficult to reach any conclusions so far, mainly because little is known about any properties of ion pairs that are relevant to partitioning and permeation processes. The aim in starting this work was to obtain physicochemical properties (or descriptors) of ion pairs that would allow quantitative assessment of the ability of ion pairs to undergo partition and permeation, especially by comparison to ionic species and neutral molecules.

NJC is a highly regarded journal that covers a wide range of  chemistry, including physical organic chemistry. The chosen reviewers for our manuscripts that we have previously submitted have always been knowledgeable and very perceptive, and an additional advantage is that time to publication is short.”, says Michael.

Michael is also a professional artist (painter) and so a great deal of his activity revolves around the practice of painting. This includes not only painting in the studio, but going out looking for sites for landscape painting, and a lot of time spent in setting up exhibitions. Michael also very keen on classical music concerts especially chamber music. When asked for an alternative career path if not a scientist, Michael naturally answered: “I suppose that my other profession, that as an artist, would have taken over as my sole profession.”

“Hydrogen bond descriptors and other properties of ion pairs”, Michael H. Abraham and William E. Acree, New J. Chem., 201135, 1740-1750. DOI: 10.1039/C1NJ20324J.

Thanks to all of you, and see you next month for more!

Fancy submitting an article to NJC? Then why not submit to us today or alternatively email us your suggestions.












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6th ISMSC: NJC was there!

Two NJC poster prizes were awarded during the brilliant 6th International Symposium on Macrocyclic and Supramolecular Chemistry (6th ISMSC) in Brighton, UK. NJC wishes to congratulate the two laureates who receive a one-year subscription to the journal. Our thanks go to the organizers of the conference for their help in organizing these awards, and our deep gratitude to all of the senior scientists who served on the jury to select the two winners

The award-winning poster of Mr Graeme Spence, a PhD student at the University of Oxford (UK)  in the group of Prof. Paul Beer, was entitled “Investigating the imidazolium motif for anion recognition using templated interlocked structures”. Graeme carried out his undergraduate studies at Trinity Hall, University of Cambridge, with his final year research project on multiporphyrin assemblies under the supervision of Dr Nick Bampos.

Ms Lena Kaufmann, who is a PhD student at the Freie Universität Berlin (Germany) in the group of Prof. Christoph Schalley, won for his poster entitled “Efficient synthesis of axle-unsymmetric amide rotaxanes through organocatalytically accelerated trapping reactions“. During her Bachelor thesis, Lena came in contact with supramolecular chemistry and was so fascinated that she decided to stay in this field. Her hobbies are doing sports like running, biking, swimming and handball. What she also likes very much is to take a tent and a canoe or bike and go to the Scandinavian wilderness.

NJC is very proud to be sponsoring the next 7th ISMSC, to be held from 29 January – 5 February 2012 in Otago, New Zealand.

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