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7月, 2014の投稿を表示しています

Catalytic Defluorination of Perfluorinated Aromatics under Oxidative Conditions Using N-Bridged Diiron Phthalocyanine

Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Cédric Colomban, Evgenij V. Kudrik, Pavel Afanasiev and Alexander B. Sorokin  /   4h   //   keep unread   //   hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja505437h Visit Website

Reaction of an Iron(IV) Nitrido Complex with Cyclohexadienes: Cycloaddition and Hydrogen-Atom Abstraction

Inorganic Chemistry: Latest Articles (ACS Publications)  by Wei-Tsung Lee, Ruth A. Juarez, Jeremiah J. Scepaniak, Salvador B. Muñoz, Diane A. Dickie, Haobin Wang and Jeremy M. Smith  /   6min    //   keep unread   //   hide   //   preview Inorganic Chemistry DOI: 10.1021/ic5010006 Visit Website

Characterization of a Paramagnetic Mononuclear Nonheme Iron-Superoxo Complex

Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Chien-Wei Chiang, Scott T. Kleespies, Heather D. Stout, Katlyn K. Meier, Po-Yi Li, Emile L. Bominaar, Lawrence Que, Eckard Münck and Way-Zen Lee  /   3d   //   keep unread   //   hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja504410s Visit Website

Copper(II) Anilides in sp3 C-H Amination

18  Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Eun Sil Jang, Claire L. McMullin, Martina Käß, Karsten Meyer, Thomas R. Cundari and Timothy H. Warren  /   3d   //   keep unread   //  hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja5026547 Visit Website

NO2– Activation and Reduction to NO by a Nonheme Fe(NO2)2 Complex

Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Brian C. Sanders, Sayed M. Hassan and Todd C. Harrop  /   8d   //   keep unread   //   hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja505236x Visit Website

Understanding Hydrogen Sulfide Storage: Probing Conditions for Sulfide Release from Hydrodisulfides

29  Journal of the American Chemical Society: Latest Articles (ACS Publications)  by T. Spencer Bailey, Lev N. Zakharov and Michael D. Pluth  /   7d   //   keep unread   //   hide   //   preview Journal of the American Chemical Society DOI: 10.1021/ja505371z Visit Website

Hexacoordinate Nickel(II)/(III) Complexes that Mimic the Catalytic Cycle of Nickel Superoxide Dismutase

Angewandte Chemie International Edition  by Sudip K. Chatterjee, Ram Chandra Maji, Suman Kumar Barman, Marilyn M. Olmstead, Apurba K. Patra  /   9h   //   keep unread   //   hide   //   preview Abstract A functional model complex of nickel superoxide dismutase (NiSOD) with a non-peptide ligand which mimics the full catalytic cycle of NiSOD is unknown. Similarly, it has not been fully elucidated whether NiSOD activity is a result of an outer- or inner-sphere electron-transfer mechanism. With this in mind, two octahedral nickel(II)/(III) complexes of a bis-tridentate N 2 S donor carboxamide ligand,  N -2-phenylthiophenyl-2′-pyridinecarboxamide (HL Ph ), have been synthesized, structurally characterized, and their SOD activities examined. These complexes mimic the full catalytic cycle of NiSOD. Electrochemical experiments support an outer-sphere electron-transfer mechanism for their SOD activit...

Synthesis of a Dimeric Magnesium(I) Compound by an MgI/MgII Redox Reaction

Synthesis of a Dimeric Magnesium(I) Compound by an MgI/MgII Redox Reaction Angewandte Chemie International Edition  by Andreas Stasch  /   1d   //   keep unread   //   hide   //   preview   +TAG Abstract The synthesis of dimeric magnesium(I) compounds of the general type RMgMgR (R=monoanionic substituent) is still a challenging synthetic task and limited to few examples with sterically demanding ligands with delocalized CN-frameworks that all have been accessed by Na or K metal reduction of magnesium(II) halide precursors. Here we report on the synthesis of a novel diiminophosphinato magnesium(I) compound that has been synthesized by a facile redox reaction using a known magnesium(I) complex. The synthetic strategy may be applicable to other ligand systems and can help expand the class of low oxidation state magnesium complexes even if reductions with Na or K are unsuc...

Ligand Modification Transforms a Catalase Mimic into a Water Oxidation Catalyst

Angewandte Chemie International Edition  by Wei-Tsung Lee, Salvador B. Muñoz, Diane A. Dickie, Jeremy M. Smith  /   6h   //   keep unread   //   hide   //   preview Abstract The catalytic reactivity of the high-spin Mn II  pyridinophane complexes [(Py 2 NR 2 )Mn(H 2 O) 2 ] 2+  (R=H, Me,  t Bu) toward O 2  formation is reported. With small macrocycle N-substituents (R=H, Me), the complexes catalytically disproportionate H 2 O 2  in aqueous solution; with a bulky substituent (R= t Bu), this catalytic reaction is shut down, but the complex becomes active for aqueous electrocatalytic H 2 O oxidation. Control experiments are in support of a homogeneous molecular catalyst and preliminary mechanistic studies suggest that the catalyst is mononuclear. This ligand-controlled switch in catalytic reactivity has implications for the design of new manganese-based water oxidation cataly...

The IX (X=O,N,C) Double Bond in Hypervalent Iodine Compounds: Is it Real?

Angewandte Chemie International Edition  by Alexander S. Ivanov, Ivan A. Popov, Alexander I. Boldyrev, Viktor V. Zhdankin  /   4d   //   keep unread   //   hide   //   preview Abstract IX (X=O, N, C) bonding was analyzed in the related hypervalent iodine compounds based on the adaptive natural density partitioning (AdNDP) approach. The results confirm the presence of a IX σ dative bond, as opposed to the widely used IX notation. A clear formulation of the electronic structure of these hypervalent iodine compounds would be useful in establishing reaction mechanisms and electronic structures in bioinorganic problems of general applicability. Singled out : The nature of the IX (X=O, N, C) chemical bonding was examined and compared amongst different hypervalent iodine molecules. The common IX representation is questioned by results of chemical bonding analyses which confirm the presence of IO, IN, ...

Saturation Kinetics in Phenolic O–H Bond Oxidation by a Mononuclear Mn(III)–OH Complex Derived from Dioxygen

人見先生のリガンドを使う人がまた出てきました。三価ヒドロキソ錯体が水素原子引き抜きを行うという論文 Inorganic Chemistry: Latest Articles (ACS Publications)   by Gayan B. Wijeratne, Briana Corzine, Victor W. Day and Timothy A. Jackson  /    18h   //    keep unread    //    hide    //    preview Inorganic Chemistry DOI: 10.1021/ic500943k Visit Website

Iron and Chromium Complexes Containing Tridentate Chelates Based on Nacnac and Imino- and Methyl-Pyridine Components: Triggering C–X Bond Formation

Inorganic Chemistry: Latest Articles (ACS Publications)  by Wesley D. Morris, Peter T. Wolczanski, Jörg Sutter, Karsten Meyer, Thomas R. Cundari and Emil B. Lobkovsky  /   16h   //   keep unread   //   hide   //  preview Inorganic Chemistry DOI: 10.1021/ic500807y Visit Website

Fine-Tuning the Energy Barrier for Metal-Mediated Dinitrogen NN Bond Cleavage

2  Journal of the American Chemical Society: Latest Articles (ACS Publications)  by Andrew J. Keane, Brendan L. Yonke, Masakazu Hirotsu, Peter Y. Zavalij and Lawrence R. Sita  /   2d   //   keep unread   //   hide  //   preview Journal of the American Chemical Society DOI: 10.1021/ja505309j Visit Website   +TAG