Photoactive ruthenium nitrosyls derived from quinoline- and pyridine-based ligands: Accelerated photorelease of NO due to quinoline ligation

被引：30

作者：

Rose, Michael J.

Olmstead, Marilyn M.

Mascharak, Pradip K. ^{[1
]}

机构：

[1] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA

[2] Univ Calif Davis, Davis, CA 95616 USA

来源：

POLYHEDRON | 2007年 / 26卷 / 16期

基金：

美国国家科学基金会;

关键词：

ruthenium nitrosyl; polypyridine ligand; carboxamide; photoactivity; quinoline;

D O I：

10.1016/j.poly.2007.03.010

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The ruthenium nitrosyl [(PaPy(2)Q)Ru(NO)](BF4)(2), derived from the quinoline-based ligand PaPy(2)QH (PaPy(2)QH = N,N-bis(2-pyridylmethyl)amine-N-ethyl-2-quinaldine-2-carboxamide; H = dissociable proton) has been synthesized and characterized by X-ray crystallography and spectroscopic techniques. This {Ru-NO}(6) nitrosyl is soluble in aqueous media and stable under physiological conditions at pH 7. [(PaPy(2)Q)Ru(NO)](2+) releases NO rapidly upon exposure to low-intensity UV light (5 mW/cm(2)). The NO donor capacity of this nitrosyl (quantum yield = 0.20, lambda(irr) = 365 nm) is considerably higher than that of analogous nitrosyl derived from a polypyridyl ligand without the quinoline moiety. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4713 / 4718

页数：6

共 36 条

[21] Synthesis and characterization of polypyridineruthenium(II) complexes containing a linear ambidentate ligand, NCO- or NCS-, and reaction of isocyanato complexes under acidic conditions [J].