Synthesis and characterization of trans-[Ru(NO)Cl(L)4](PF6)2 (L = isonicotinamide; 4-acetylpyridine) and related species

被引：12
|
作者：
Calandreli, Ivy [1 ]
Oliveira, Fabiana de Souza [1 ]
Liang, Guogang [2 ]
da Rocha, Zenis Novais [3 ]
Tfouni, Elia [1 ]
机构：
[1] Univ Sao Paulo, Dept Quim, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Ribeirao Preto, SP, Brazil
[2] Chinese Acad Med Sci, Inst Chinese Mat Med, Beijing 100700, Peoples R China
[3] Univ Fed Bahia, Inst Quim, BR-40170290 Salvador, BA, Brazil
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2009年 / 12卷 / 07期
基金：
巴西圣保罗研究基金会;
关键词：
Nitrosyl; Ruthenium; Nitric oxide; Pyridines; Nitrosonium; Acidity; NITRIC-OXIDE RELEASE; NITROSYL COMPLEXES; NO; REACTIVITY; BEHAVIOR; LIGHT;
D O I：
10.1016/j.inoche.2009.04.024
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The trans-[RUCl2(L)(4)], trans-[Ru(NO)Cl (L)(4)](PF6)(2) (L = isonicotinamide and 4-acetylpyridine) and trans-[Ru(NO)(OH)(py)(4)]Cl-2 (py = pyridine) complexes have been prepared and characterized by elemental analysis, UV-visible, infrared, and H-1 NMR spectroscopies, and cyclic voltammetry. The MLCT band energies of trans-[RUCl2(L)(4) increase in the order 4-acpy < isn < py. The reduction potentials of trans-[RuCl2(L)(4)] and trans-[Ru(NO)Cl(L)(4)](2+) increase in the order py < isn < 4-acpy. The stretching band frequency. v(NO), of the nitrosyl complexes ranges from 1913 to 1852 cm(-1) indicating a nitrosonium character for the NO ligand. Due to the large pi-acceptor ability of the equatorial ligands, the coordinated water is much more acidic in the water soluble trans-[Ru(NO)(H2O)(py)(4)](3+) than in trans-[Ru(NO)(H2O)(NH3)(4)](3+) (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：591 / 595
页数：5
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