Photophysical and novel charge-transfer properties of adducts between [RuII(bPY)3]2+ and [S2MO18O62]4-

被引：63

作者：

Keyes, TE ^{[1
]}

Gicquel, E

Guerin, L

Forster, RJ

Hultgren, V

Bond, AM

Wedd, AG

机构：

[1] Dublin City Univ, Sch Chem Sci, Dublin 9, Ireland

[2] Dublin Inst Technol, Sch Chem, Dublin 8, Ireland

[3] Monash Univ, Dept Chem, Clayton, Vic 3800, Australia

[4] Univ Melbourne, Sch Chem, Melbourne, Vic 3010, Australia

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 24期

关键词：

D O I：

10.1021/ic0206802

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The photophysical properties of acetonitrile solutions of [Ru(bPY)(3)](2+) and [S2Mo18O62](4-) are described. We discuss evidence for ion cluster formation in solution and the observation that despite the strong donor ability of the excited state of [Ru(bPY)(3)](2+) and its inherent photolability, adducts with [S2Mo18O62](4-) were photostable. Photophysical studies suggest that the quenching of the [Ru(bPY)(3)](2+) excited state by [S2Mo18O62](4-) occurs via a static mechanism and that binding is largely electrostatic in nature. Evidence is provided from difference spectroscopy and luminescence excitation spectroscopy for good electronic communication between [Ru(bPY)(3)](2+) and [S2Mo18O62](4-) with the presence of a novel, luminescent, inter-ion charge-transfer transition. The identity of the transition is confirmed by resonance Raman spectroscopy.

引用

页码：7897 / 7905

页数：9

共 24 条

[1] DYNAMIC AND STATIC QUENCHING OF THE LUMINESCENCE OF RUTHENIUM(II) POLYPYRIDINE COMPLEXES BY HETEROPOLYTUNGSTATE ANIONS - DIRECT MEASUREMENTS OF INTRAMOLECULAR ELECTRON-TRANSFER RATE CONSTANTS [J].