Photo-induced nitric oxide release from chlorobis(2,2′-bipyridine)nitrosylruthenium(II) in aqueous solution

被引：46

作者：

Togniolo, V

da Silva, RS

Tedesco, AC

机构：

[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Ribeirao Preto, SP, Brazil

[2] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Pret, Dept Quim, BR-14040901 Ribeirao Preto, SP, Brazil

来源：

INORGANICA CHIMICA ACTA | 2001年 / 316卷 / 1-2期

基金：

巴西圣保罗研究基金会;

关键词：

photochemistry; ruthenium complexes; nitrosyl complexes; nitric oxide complexes;

D O I：

10.1016/S0020-1693(01)00370-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report here a photochemical study of cis-[RuCl(bpy)(2)(NO)](PF6)(2) in aqueous solution with flash-photolysis at 355 nm light. The spectroelectrochemistry and pH effect were also determined. NO was measured in situ with an NO sensor. Light intensities were determined by ferrioxalate actinometry. The quantum yields for NO release were determined with a laser flash-photolysis apparatus (Continuum Q-switched Nd-YAG laser). The photochemistry of cis-[RuCl(bpy)(2)(NO)](PF6)(2) in aqueous solution released NO with laser at 355 nm. The mechanism of the photochemical pathway of cis-[RuCl(bpy),(NO)I(PF,), was similar in aqueous and non-aqueous solution, in contrast to previously published results. We found that the best description for the photolysis product of cis-[RuCl(bpy)(2)(NO)](2+) in aqueous solution at pH 5.7 was cis-[Ru(III)Cl(bpy)(2)(OH)(+). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：7 / 12

页数：6

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