Mixed-valence properties of a dinuclear ruthenium complex bridged by bis(phenylcyanamido)tetrazine

被引：1

作者：

Habibagahi, Fatemeh ^{[1
]}

Crutchley, Robert J. ^{[1
]}

机构：

[1] Carleton Univ, Dept Chem, Ottawa, ON K1S 5B6, Canada

来源：

CANADIAN JOURNAL OF CHEMISTRY | 2014年 / 92卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

mixed-valence; ruthenium; spectroelectrochemistry; CHARGE-TRANSFER; LIGAND; SUPEREXCHANGE;

D O I：

10.1139/cjc-2014-0307

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The novel bridging ligand 3,6-bis(phenylcyanamido)-1,2,4,5-tetrazine (tdpcH(2)) and its dinuclear complex [{Ru(ttpy)(bpy)}(2)(mu-tdpc)][PF6](2) were prepared and characterized by elemental analysis and 1H NMR spectroscopy. Cyclic voltammetry and vis-NIR and IR spectroelectrochemistry of [{Ru(ttpy)(bpy)}(2)(mu-tdpc)](2+) showed that [{Ru(ttpy)(bpy)}(2)(mu-tdpc)](3+) is a Class II mixed-valence system with metal-metal coupling of 400 cm(-1) assuming a transition dipole moment length of 21 angstrom. DFT calculations of tdpc(2-) suggested that the stability of the HOMO results in weak metal-metal coupling via the hole-superexchange mechanism.

引用

页码：1081 / 1085

页数：5

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