Urea-bridged diferrocene: structural, electrochemical, and spectroelectrochemical studies

被引：0

作者：

ZhongLiang Gong ^{[1
,2
,3
]}

YuWu Zhong ^{[1
,2
,3
]}

机构：

[1] Beijing National Laboratory for Molecular Sciences

[2] CAS Key Laboratory of Photochemistry

[3] Institute of Chemistry, Chinese Academy of Sciences

来源：

Science China(Chemistry) | 2015年 / 09期

关键词：

mixed-valent compounds; ferrocene; electrochemistry; urea; spectroelectrochemistry;

D O I：

暂无

中图分类号：

O627.81 [];

学科分类号：

070303 ; 081704 ;

摘要：

Urea-bridged diferrocene derivatives N,N?-diferrocenylurea(1) and N,N?-dimethyl-N,N?-diferrocenylurea(2) were prepared and characterized. Single-crystal X-ray analysis shows that Compound 1 has a trans-trans linear conformation whereas Compound 2 has a trans-cis conformation. Both compounds display two consecutive redox couples with, respectively, E1/2 of +0.29 and +0.42 V vs. Ag/Ag Cl for 1 and +0.31 and +0.50 V for 2. Spectroelectrochemical studies show the presence of distinct intervalence charge transfer(IVCT) transitions for the one-electron-oxidized mixed-valent Compound 1+, with an estimated electronic coupling parameter of 190 cm?1. By contrast, the one-electron-oxidized Compound 2+ shows much weaker IVCT transitions.

引用

页码：1444 / 1450

页数：7

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