{(μ-L)[RuII(acac)2]2}", n = 2+, +, 0, -, 2-, with L=3,3′, 4,4′-tetraimino-3,3′,4,4′-tetrahydrobiphenyl.: EPR- supported assignment of NIR absorptions for the paramagnetic intermediates

被引：36

作者：

Patra, S

Sarkar, B

Ghumaan, S

Fiedler, J

Zális, S

Kaim, W ^{[1
]}

Lahiri, GK

机构：

[1] Indian Inst Technol, Dept Chem, Bombay 400076, Maharashtra, India

[2] Univ Stuttgart, Inst Anorgan Chem, D-70550 Stuttgart, Germany

[3] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, CZ-18223 Prague, Czech Republic

来源：

DALTON TRANSACTIONS | 2004年 / 05期

关键词：

D O I：

10.1039/b315927m

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A complete EPR and UV-Vis-NIR spectroelectrochemical characterisation has been carried out for the series 1(2+/+/0/-/2-) where 1 is the new complex {(mu-L)[Ru-II(acac)(2)](2)}, L = 3,3',4,4'-tetraimino-3,3',4,4'-tetrahydrobiphenyl. The paramagnetic intermediates are identified as the anion radical (L.-) complex 1(.-) with a long-wavelength intra-ligand transition at 2160 nm and as the weakly coupled diruthenium(II,III) species 1(.-) (K-c = 10(3)) with a low-intensity intervalence charge transfer (IVCT) band at 1570 nm. DFT calculations using ADF and Gaussian 03 programs support these assignments.

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页码：750 / 753

页数：4

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