Archive for October, 2014

Nominations open for the Cram Lehn Pedersen Prize in Supramolecular Chemistry 2015

Nominations are now open for the Cram Lehn Pedersen Prize in Supramolecular Chemistry. The prize, sponsored by ChemComm, is organised by the committee of the International Symposium on Macrocyclic and Supramolecular Chemistry and is awarded each year to a young supramolecular chemist.

The Cram Lehn Pedersen Prize is named in honour of the winners of the 1987 Nobel Prize in Chemistry and recognizes significant original and independent work in supramolecular chemistry. Previous winners include Oren Schermann, Tomoki Ogoshi, and Jonathan Nitschke.

The Prize
The winner will receive:

  • £2000
  • free registration for the ISMSC meeting in Strasbourg, France
  • the opportunity to give a lecture at the ISMSC as well as undertake a short lecture tour after the meeting, in consultation with the Editor of ChemComm

Eligibility
To be eligible for the award you must be within 10 years of receiving your PhD on 31st December 2014

Nomination Instructions
You may nominate yourself or someone else. Please send CV, list of publications (divided into publications from PhD and postdoc and publications from independent work), and, if desired, a letter of support to Prof. Roger Harrison (ISMSC Secretary) at rgharris@chem.byu.edu by 31st December 2014

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Just Mix – Zeolitic Imidazolate Framework Synthesis

Zeolitic-imidazolate frameworks (ZIFs) are a sub-class of metal-organic frameworks (MOFs) with a wide range of potential uses including: CO2 capture, storage, catalysis, sensing and biomedicine. Unfortunately their synthesis often requires additives or reaction activation, and if they can be made without these it often requires long reaction times or results in low yields, neither of which is ideal for a substance with such wide potential uses.

To overcome this bottleneck in ZIF synthesis, Roland Fischer and his team from the Inorganic Chemistry department in Ruhr Universitat Bochum in Germany have developed a rapid room temperature synthesis approach. I am a great believer in developing approaches that can be carried out at room temperature and pressure and this is one such elegant solution. The authors produce nanocrystals of ZIFs in a very narrow size distribution by careful selection of the precursors and the solvents they are dissolved in. The solutions are then mixed and stirred to create the ZIF crystals; it really is that elegant.

ZIF crystals showing very narrow size distribution

The authors then used these crystals to fabricate thin films on quartz crystal microbalances and used this device to detect volatile organic solvents. This demonstration leads the way into exploring other uses of these ZIFs – after all, they can now be easily made. But to find out which solvent and precursors you need to use, you’ll have to read the paper today!

To read the details, check out the ChemComm article in full:
Rapid room temperature synthesis of zeolitic-imidazolate framework (ZIF) nanocrystals
Min Tu, Christian Wiktor, Christoph Rosler and Roland Fischer
Chem. Commun., 2014, 50, 13258-13260
DOI: 10.1039/C4CC06491G  

    

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Ionic liquid-gas interfaces: more than a surface glance

Research by scientists in the UK suggests that small changes in the nature of binary ionic liquid systems can significantly alter their surface composition. The findings may aid the design of ionic liquid films for applications such as gas capture and supported catalysis, where surface adsorption is essential.

Studies on simple one-cation–one-anion mixtures have previously revealed that the outer layers contain a greater concentration of alkyl chains than in the bulk…


Read the full article in Chemistry World»

Read the original journal article in ChemComm – it’s free to access until 20 November:
Fine tuning the ionic liquid–vacuum outer atomic surface using ion mixtures
Ignacio J. Villar-Garcia, Sarah Fearn, Nur L. Ismail, Alastair J. S. McIntosh and Kevin R. J. Lovelock  
DOI: 10.1039/C4CC06307D

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FBNCO: all the 2p-block elements in one molecule

Scientists in Italy have made a molecule with one of each of the 2p-block elements. Well, almost. There’s no neon in FBNCO but it would be a bit unfair to expect them to include an element with no known chemistry.

Read the full article in Chemistry World»

You can read the original journal article in ChemComm – it’s free to access until 17th November 2014:
All the 2p-block elements in a molecule: experimental and theoretical studies of FBNCO and FBNCO+
Anna Troiani, Stefania Garzoli, Federico Pepi, Andreina Ricci, Marzio Rosi, Chiara Salvitti and Giulia de Petris  
DOI: 10.1039/C4CC05217J

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Hot ChemComm articles for October

All of the referee-recommended articles below are free to access until 9th November 2014

Relay cooperation of K2S2O8 and O2 in oxytrifluoromethylation of alkenes using CF3SO2Na
Qingquan Lu, Chao Liu, Zhiyuan Huang, Yiyang Ma, Jian Zhang and Aiwen Lei  
Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06328G, Communication

C4CC06328G GA


All the 2p-block elements in a molecule: experimental and theoretical studies of FBNCO and FBNCO+
Anna Troiani, Stefania Garzoli, Federico Pepi, Andreina Ricci, Marzio Rosi, Chiara Salvitti and Giulia de Petris  
Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05217J, Communication

C4CC05217J GA


Hierarchical porous metal–organic framework monoliths
Adham Ahmed, Mark Forster, Rob Clowes, Peter Myers and Haifei Zhang  
Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06967F, Communication

C4CC06967F GA


Live cell off-target identification of lapatinib using ligand-directed tosyl chemistry
Kei Yamaura, Keiko Kuwata, Tomonori Tamura, Yoshiyuki Kioi, Yousuke Takaoka, Shigeki Kiyonaka and Itaru Hamachi  
Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05885B, Communication

C4CC05885B GA


Organic nanoparticles with aggregation-induced emission for tracking bone marrow stromal cells in the rat ischemic stroke model
Kai Li, Mie Yamamoto, Su Jing Chan, Mun Yee Chiam, Wei Qin, Peter Tsun Hon Wong, Evelyn King Fai Yim, Ben Zhong Tang and Bin Liu  
Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06921H, Communication

C4CC06921H GA


The coaction of tonic and phasic dopamine dynamics
Christopher W. Atcherley, Kevin M. Wood, Kate L. Parent, Parastoo Hashemi and Michael L. Heien  
Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06165A, Communication

C4CC06165A GA

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Assessing covalency in the hydrogen bond zoo

Covalency, a term describing bonding by sharing electrons, divides opinion when mentioned alongside hydrogen bonding. Worried that the concept of hydrogen bonding has been getting fuzzier over time, scientists in Germany have sought a fresh look at the very nature of these bonds, and how much covalency they involve.

Richard Dronskowski and colleagues at RWTH Aachen University collected evidence from hydrogen-bonded molecular crystals to elucidate how these crystals are held together and compare the covalency of long and short hydrogen bonds.


Read the full article in Chemistry World»

Read the original journal article in ChemComm – it’s free to access until 13th November:
Covalency of hydrogen bonds in solids revisited
Volker L. Deringer, Ulli Englert and Richard Dronskowski  
Chem. Commun., 2014,50, 11547-11549, DOI: 10.1039/C4CC04716H

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