Itoh Group Literature Review

Dr. Wai-Lun Man,  Jianhui Xie,  Po-Kam Lo, Dr. William W. Y. Lam,  Dr. Shek-Man Yiu, Dr. Kai-Chung Lau and Prof. Tai-Chu Lau * Article first published online: 24 JUN 2014 DOI: 10.1002/anie.201404421 Keywords: alkynes; nitrides; nitrogenation; reaction mechanisms; ruthenium Abstract Exploring new reactivity of metal nitrides is of great interest because it can give insights to N 2  fixation chemistry and provide new methods for nitrogenation of organic substrates. In this work, reaction of a (salen)ruthenium(VI) nitrido complex with various alkynes results in the formation of novel (salen)ruthenium(III) imine complexes. Kinetic and computational studies suggest that the reactions go through an initial ruthenium(IV) aziro intermediate, followed by addition of nucleophiles to give the (salen)ruthenium(III) imine complexes. These unprecedented reactions provide a new pathway for nitrogenation of alkynes based on a metal nitride. View Full Article with Sup

Communication Biomimetic oxidation of pyrene and related aromatic hydrocarbons. Unexpected electron accepting abilities of pyrenequinones. Alejandro Lopez-Moreno ,     David Clemente-Tejeda ,   Joaquin Calbo ,     Atena Naeimi ,     Francisco Bermejo ,   Enrique Orti  and     Emilio M Perez    Chem. Commun. , 2014, Accepted Manuscript DOI:  10.1039/C4CC04026K Accepted 27 Jun 2014 First published online 27 Jun 2014  This article is part of themed collection:  2014 Emerging Investigators | | Share on citeulike | Share on facebook | Share on twitter | | More PDF Rich HTML    Send PDF to Kindle Download Citation BibTex   EndNote   MEDLINE   ProCite   ReferenceManager   RefWorks   RIS   Request Permissions Abstract Cited by Related Content   We present a mild catalytic method to oxidize PAHs and, in particular, pyrene. The pyrenediones are much better electron acceptors than benzoquinone in the gas phase and

Article Previous Article Next Article Articles ASAP Catalytic Formation of Ammonia from Molecular Dinitrogen by Use of Dinitrogen-Bridged Dimolybdenum–Dinitrogen Complexes Bearing PNP-Pincer Ligands: Remarkable Effect of Substituent at PNP-Pincer Ligand ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF  [1959 KB] PDF w/ Links [805 KB] Full Text HTML Abstract Supporting Info -> Figures Reference QuickView Add to ACS ChemWorx Shogo Kuriyama   † ,  Kazuya Arashiba   † ,  Kazunari Nakajima   † ,  Hiromasa Tanaka   ‡ ,  Nobuaki Kamaru § ,  Kazunari Yoshizawa   * ‡ § , and  Yoshiaki Nishibayashi   * † †  Institute of Engineering Innovation, School of Engineering,  The University of Tokyo , Yayoi, Bunkyo-ku, Tokyo 113-8656,  Japan ‡  Elements Strategy Initiative for Catalysts and Batteries (ESICB),  Kyoto University , Nishikyo-ku, Kyoto 615-8520,  Japan §  Institute for Materials Chemistry and Engineering and International

Article Previous Article Next Article Articles ASAP Electrochemical Behavior of Phosphine-Substituted Ruthenium(II) Polypyridine Complexes with a Single Labile Ligand ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF  [2691 KB] PDF w/ Links [610 KB] Full Text HTML Abstract Supporting Info -> Figures Reference QuickView Add to ACS ChemWorx Go Nakamura   † ‡ ,  Masaya Okamura   † ‡ ,  Masaki Yoshida   ‡ ,  Takayoshi Suzuki   § ,  Hideo D. Takagi   , Mio Kondo   † ‡ # , and  Shigeyuki Masaoka   * † ‡ †  Department of Structural Molecular Science, School of Physical Sciences,  The Graduate University for Advanced Studies (SOKENDAI) , Shonan Village, Hayama-cho, Kanagawa 240-0193,  Japan ‡   Institute for Molecular Science (IMS) , 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan §  Graduate School of Natural Science and Technology, Okayama University , 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530,  Japan  Gra

Abstract The electronic structures of the five members of the electron transfer series [Mo(bpy) 3 ] n  ( n =3+, 2+, 1+, 0, 1−) are determined through a combination of techniques: electro- and magnetochemistry, UV/Vis and EPR spectroscopies, and X-ray crystallography. The mono- and dication are prepared and isolated as PF 6  salts for the first time. It is shown that all species contain a central Mo III  ion (4d 3 ). The successive one-electron reductions/oxidations within the series are all ligand-based, involving neutral (bpy 0 ), the  π -radical anion (bpy . ) 1− , and the diamagnetic dianion (bpy 2− ) 2− : [Mo III (bpy 0 ) 3 ] 3+  ( S =3/2), [Mo III (bpy . )(bpy 0 ) 2 ] 2+  ( S =1), [Mo III (bpy . ) 2 (bpy 0 )] 1+  ( S =1/2), [Mo III (bpy . ) 3 ] ( S =0), and [Mo III (bpy . ) 2 (bpy 2− )] 1−  ( S =1/2). The previously described diamagnetic dication “[Mo II (bpy 0 ) 3 ](BF 4 ) 2 ” is proposed to be a diamagnetic dinuclear species [{Mo(bpy) 3 } 2 (μ 2 -O)](BF 4 ) 4 . Two new

Weixue Wang   † ,  Roxana E. Iacob   ‡ ,  Rebecca P. Luoh   § ,  John R. Engen   ‡ , and  Stephen J. Lippard   * † Departments of  † Chemistry and  § Biological Engineering,  Massachusetts Institute of Technology , Cambridge, Massachusetts 02139,  United States ‡  Department of Chemistry & Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States Abstract The hydroxylation or epoxidation of hydrocarbons by bacterial multicomponent monooxygenases (BMMs) requires the interplay of three or four protein components. How component protein interactions control catalysis, however, is not well understood. In particular, the binding sites of the reductase components on the surface of their cognate hydroxylases and the role(s) that the regulatory proteins play during intermolecular electron transfer leading to the hydroxylase reduction have been enigmatic. Here we determine the reductase binding site on the hydroxylase of a BMM enzyme, soluble

Daisuke Nakane   † ,  Yuko Wasada-Tsutsui   † , Yasuhiro Funahashi   ‡ ,  Tsubasa Hatanaka   ‡ , Tomohiro Ozawa   † , and  Hideki Masuda   * † Synopsis A Ni(II) complex with amino−carboxamido−dithiolato-type coordination is prepared as a model complex of NiSOD. This complex has a quite similar feature to that of the NiSOD active site. The spectroscopic and electrochemical properties of this complex were strongly affected by electrophilicity of solvents. Furthermore, this complex showed similar reactivity with superoxide anion to that of NiSOD. According to the experiments, a reaction mechanism of NiSOD is proposed. Inorganic Chemistry DOI: 10.1021/ic402574d View:  ACS ActiveView PDF  |  PDF  |  PDF w/ Links  |  Full Text HTML