Effect of the Addition of a Fused Donor-Acceptor Ligand on a Ru(II) Complex: Synthesis, Characterization, and Photoinduced Electron Transfer Reactions of [Ru(TTF-dppz)2(Aqphen)]2+

被引：35

作者：

Dupont, Nathalie ^{[2
]}

Ran, Ying-Fen ^{[1
]}

Jia, Hong-Peng ^{[1
]}

Grilj, Jakob ^{[2
]}

Ding, Jie ^{[2
]}

Liu, Shi-Xia ^{[1
]}

Decurtins, Silvio ^{[1
]}

Hauser, Andreas ^{[2
]}

机构：

[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland

[2] Univ Geneva, Dept Phys Chem, CH-1211 Geneva 4, Switzerland

来源：

INORGANIC CHEMISTRY | 2011年 / 50卷 / 08期

基金：

瑞士国家科学基金会;

关键词：

INTRAMOLECULAR CHARGE-TRANSFER; RUTHENIUM(II) COMPLEXES; POLYPYRIDINE COMPLEXES; METAL; TETRATHIAFULVALENES; ELECTROCHEMISTRY; PHOTOCHEMISTRY; PHENANTHROLINE; CHROMOPHORE; CHEMISTRY;

D O I：

10.1021/ic101951n

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and the photophysical properties of the complex [Ru(TTF-dppz)(2)(Aqphen)](2+) (TTF = tetrathiafulvalene, dppz = dipyrido-[3,2-a:2',3'-c]phenazine, Aqphen = anthraquinone fused to phenanthroline via a pyrazine bridge) are described. In this molecular triad excitation into the metal ligand charge transfer bands results in the creation of a long-lived charge separated state with TTF acting as electron donor and anthraquinone as terminal acceptor. The lifetime of the charge-separated state is 400 ns in dichloromethane at room temperature. A mechanism for the charge separation involving an intermediate charge-separated state is proposed based on transient absorption spectroscopy.

引用

页码：3295 / 3303

页数：9

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