Chemistry - A European Journal
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Neville Compton, Deputy Editors: Anne Deveson, Elisabeth Roedern
Impact Factor: 5.925
ISI Journal Citation Reports © Ranking: 2011: 20/154 (Chemistry Multidisciplinary)
Online ISSN: 1521-3765
Associated Title(s): Angewandte Chemie International Edition, Chemistry – An Asian Journal, ChemistryOpen, ChemBioChem, ChemCatChem, ChemElectroChem, ChemMedChem, ChemPhysChem, ChemPlusChem, ChemSusChem, European Journal of Inorganic Chemistry, European Journal of Organic Chemistry
June 10, 2013
ChemPlusChem 6/2013: An Unconventional Anion
New ionic liquids and solid-state electrolytes that incorporate the carbamoylcyano(nitroso)methanide anion have been investigated by Jennifer Pringle et al. The anion can exist in both a syn and anti conformation, contributing to its useful properties such as low viscosity and good conductivity. In their Communication, Honggang Fu et al. describe a combined liquid–liquid interface reaction and the self-assembly of Co clusters to synthesize free-standing ultrathin Co nanosheets, which have ferromagnetic behavior and potential application in catalysis and nanodevices. Among the Full Papers is a report from Koen Binnemans et al. outlining the preparation and isolation of simple silver-containing ionic liquids, which show advantageous electrochemical behavior in terms of electrodeposition of crack-free silver coatings.
Recently Published Articles
- A Functional Model for the Rieske Center: Full Characterization of a Biomimetic N-Ligated [2Fe-2S] Cluster in Different Protonation States
Antonia Albers, Thomas Bayer, Dr. Serhiy Demeshko, Dr. Sebastian Dechert and Prof. Dr. Franc Meyer
Article first published online: 18 JUN 2013 | DOI: 10.1002/chem.201301760
Give and take both: A bis(benzimidazolate)-capped biomimetic [2Fe-2S] cluster has been characterized in different protonation states, both in the diferric and mixed-valent forms. Protonation does not lead to structural changes of the [2Fe-2S] core, but facilitates its reduction and causes pronounced valence localization in the mixed-valent state. Concerted proton and electron transfer back to the diferric cluster emulates a key step in the function of mitochondrial Rieske proteins (see scheme).
- In Situ Generation of PhI+CF3 and Transition-Metal-Free Oxidative sp2 CH Trifluoromethylation
Cong Xu, Jingxin Liu, Wenbo Ming, Yingjie Liu, Dr. Jun Liu, Prof. Mang Wang and Prof. Qun Liu
Article first published online: 18 JUN 2013 | DOI: 10.1002/chem.201301585
These things are sent to tri us: The introduction of CF3 units into organic molecules is important and requires the development of convenient trifluoromethylating reagents. Here, PhI+CF3, an acyclic electrophilic “CF3+” species, is described, including its in situ generation from TMSCF3, PhI(OAc)2, and KF and its direct applications in sp2 CH trifluoromethylations under mild transition-metal-free conditions (see scheme).
- Cobalt-Catalyzed Hydrosilation/Hydrogen-Transfer Cascade Reaction: A New Route to Silyl Enol Ethers
Dr. Thomas W. Lyons and Prof. Maurice Brookhart
Article first published online: 18 JUN 2013 | DOI: 10.1002/chem.201301502
Capitalizing on cobalt: A new route to silyl enol ethers employing a Co-catalyzed cascade reaction featuring a tandem hydrosilation/hydrogen-transfer reaction is reported. The low catalyst loading, mild reaction conditions, and unique η2-silane resting state showcase the impressive utility of this seldom used transition-metal catalyst in CH activation reactions (see scheme).
- Platinum(II) and Gold(III) Allenylidene Complexes: Phosphorescence, Self-Assembled Nanostructures and Cytotoxicity
Xin-Shan Xiao, Wai-Lun Kwong, Dr. Xiangguo Guan, Chen Yang, Prof. Dr. Wei Lu and Prof. Dr. Chi-Ming Che
Article first published online: 18 JUN 2013 | DOI: 10.1002/chem.201301481
The bright side of triple double bonds: Two series of stable tridentate cyclometalated PtII and AuIII allenylidene complexes were found to exhibit many functionalities, such as long-lived excited states, self-assembling into supramolecular nanostructures, DNA and nucleus binding and cellular imaging capabilities (see figure).
- First X-Ray Crystal Structure and Internal Reference Diffusion-Ordered NMR Spectroscopy Study of the Prototypical Posner Reagent, MeCu(SPh)Li(THF)3
Prof. Dr. Steven H. Bertz, Richard A. Hardin, Thomas J. Heavey, Prof. Dr. Daniel S. Jones, T. Blake Monroe, Dr. Michael D. Murphy, Prof. Dr. Craig A. Ogle and Tara N. Whaley
Article first published online: 18 JUN 2013 | DOI: 10.1002/chem.201301415
Grow slow: The usual direct treatment of MeLi and CuSPh did not yield X-ray quality crystals of MeCu(SPh)Li. An indirect method starting from Me2CuLi⋅LiSPh and chalcone afforded the desired crystals by the slow reaction of the intermediate π-complex (see scheme). This strategy produced the first X-ray crystal structure of a Posner cuprate. A complementary NMR study showed that the contact ion pair was also the main species in solution.