Interaction of two equivalent electron transfer atom transfer centers via 2,2′-bipyrimidine as bridging ligand

被引：32

作者：

Baumann, F ^{[1
]}

Stange, A ^{[1
]}

Kaim, W ^{[1
]}

机构：

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

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 1998年 / 1卷 / 08期

关键词：

crystal structures; spectroelectrochemistry; electron transfer; osmium complexes;

D O I：

10.1016/S1387-7003(98)00082-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The redox pair [(p-cym) OsCl](+)/ [ (p-cym)Os], p-cym = eta(6)-p-cymene ( 1,4-(C6H4MePr)-Pr-i), involving a two electron process coupled with chloride dissociation, has been studied in the mono- and dinuclear complex with the 2,2'-bipyrimidine (bpym) ligand. Whereas the mononuclear system exhibits the well-known ECE pattern on reduction, the structurally characterized trans-{(mu-bpym) [(p-cym) OsCl](2)}(PF6)(2) shows several special features, including the decoupling of the first ECE process into an E and EC step (electron reservoir function of bpym) and a splitting of 420 mV for the reduction steps associated with the chloride transfer (electronic communication between EC reaction centers). (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：305 / 308

页数：4

共 26 条

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