Platinum complexes of diazo ligands. Studies of regioselective aromatic ring amination, oxidative halogen addition and reductive halogen elimination reactions
2-(Arylazo)pyridine ligands, L1a-1c react with the salt K2[PtCl4] to give the mononuclear complexes [PtCl2(L1)](1), which readily react with ArNH2 to yield the monochloro complexes of type [PtCl(L2)](HL2= 2-[(2-(arylamino)phenyl)azo]pyridine)(2) via regioselective ortho-amine fusion at the pendent aryl ring of coordinated L1. Oxidative addition of the electrophiles Y2(Y = Cl, Br, I) to the square-planar
Preparation and evaluation of 2-azinyl-2H-benzotriazoles as bidentate ligands: Synthesis and characterization of [2-(2-pyridynyl)-2H-benzotriazole](bpy)2Ru2+
作者:Emilia Obijalska、Piotr Kaszynski、Aleksandra Jankowiak、Victor G. Young
DOI:10.1016/j.poly.2011.02.023
日期:2011.4
Abstract Five 2-azinyl-2H-benzotriazoles (azinyl = 2-pyridinyl, 2-pyrazinyl, 2-pyrimidinyl, 6-methoxy-3-pyridazinyl, 5-methyl-2-pyridinyl were prepared and characterized as bidentate ligands. The electronic structure of these and related heterocycles was investigated spectroscopically and computationally (TD-DFT). They were tested at the B3LYP/6-31++G(d, p)//B3LYP/6-31G(d, p) level of theory as ligands
Isolation and Assessment of the Molecular and Electronic Structures of Azo-Anion-Radical Complexes of Chromium and Molybdenum. Experimental and Theoretical Characterization of Complete Electron-Transfer Series
作者:Sucheta Joy、Tobias Krämer、Nanda D. Paul、Priyabrata Banerjee、John E. McGrady、Sreebrata Goswami
DOI:10.1021/ic200708c
日期:2011.10.17
electronic structures of chromium and molybdenum centers coordinated by the three redox noninnocent ligands La/b along with their redox partners have been elucidated by using a host of physical methods: X-ray crystallography, magnetic susceptibility measurements, nuclearmagneticresonance, cyclic voltammetry, absorption spectroscopy, electron paramagnetic resonancespectroscopy, and density functional theory
3当量的配体2-[((2-氯苯基)偶氮]吡啶(L a)或2-[(4-氯苯基)偶氮]吡啶(L b)与1当量的Cr(CO)6或Mo反应在沸腾的正辛烷中的(CO)6得到[Cr(L a / b)3 ] 0(1a和1b)和[Mo(L a / b)3 ] 0(2a和2b)。这些中性配合物与I 2在CH 2 Cl 2中的化学氧化反应到空气稳定提供的访问单电子氧化的物种作为其三碘化物(I 3 - )的盐。铬和钼中心的电子结构由三个氧化还原非纯配体L a / b及其氧化还原配偶体协调,已通过多种物理方法阐明:X射线晶体学,磁化率测量,核磁共振,循环伏安法,吸收光谱,电子顺磁共振光谱和密度泛函理论。四个代表配合物,1A,[ 1A ]我3,图2a和[图2a ]我3通过X射线晶体学表征。结果表明,中性铬(III)物种[Cr III(L •–)3 ]中的配体占主导地位的偶氮-阴离子-自由基,通过强金属-配体反铁磁耦
Santra, Bidyut Kumar; Lahiri, Goutam Kumar, Journal of the Chemical Society, Dalton Transactions, 1998, # 1, p. 139 - 145
作者:Santra, Bidyut Kumar、Lahiri, Goutam Kumar
DOI:——
日期:——
Chatterjee, Ipsita; Ghosh, Pradip; Datta, Harashit, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 2014, vol. 53, # 1, p. 27 - 33