BIS(DIOXOLENE)BIS(PYRIDINE)RUTHENIUM REDOX SERIES

被引：89

作者：

AUBURN, PR ^{[1
]}

DODSWORTH, ES ^{[1
]}

HAGA, M ^{[1
]}

LIU, W ^{[1
]}

NEVIN, WA ^{[1
]}

LEVER, ABP ^{[1
]}

机构：

[1] YORK UNIV,DEPT CHEM,N YORK M3J 1P3,ONTARIO,CANADA

来源：

INORGANIC CHEMISTRY | 1991年 / 30卷 / 18期

关键词：

D O I：

10.1021/ic00018a022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of ruthenium complexes containing noninnocent 1,2-dioxolene ligands (dioxolene refers to any of the series catechol-semiquinone-quinone) have been prepared. These have the formula t-[Ru(RPy)2(dioxolene)2]n, where the RPy ligands are a series of substituted pyridines and n = -1, 0, +1. Their electrochemical and spectroscopic (NMR, ESR, IR, PES, electronic) properties are reported and discussed in terms of their electronic structures, described by using simple qualitative molecular orbital models. Their electronic structures are subtly different from those of the related c-[Ru(bpy)(dioxolene)2]n species reported previously (bpy = 2,2'-bipyridine). The neutral (n = 0) complexes have a fully delocalized, mixed-valence Ru(III)(RPy)2(catechol)(semiquinone) electronic structure. The oxidized (n = +1) and reduced (n = -1) species are also Ru(III) species. The electronic absorption data show a variety of different charge-transfer bands whose assignments are based upon energy variations with change of pyridine and/or dioxolene substituent and upon the net oxidation state.

引用

页码：3502 / 3512

页数：11

共 62 条

[41]

McCleverty J. A., 1968, PROG INORG CHEM, V10, P49, DOI DOI 10.1002/9780470166116.CH2

[42] CARBOXYLATOTRIPHENYLPHOSPHINE COMPLEXES OF RUTHENIUM, CATIONIC TRIPHENYLPHOSPHINE COMPLEXES DERIVED FROM THEM, AND THEIR BEHAVIOR AS HOMOGENEOUS HYDROGENATION CATALYSTS FOR ALKENES [J].