Color change of redox-active organometallic dithienylethene complexes by photochemical and redox processes

被引：7

作者：

Li, Huifang ^{[1
]}

Koike, Takashi ^{[1
]}

Akita, Munetaka ^{[1
]}

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

DYES AND PIGMENTS | 2012年 / 92卷 / 02期

关键词：

Dithienylethene; Photochromism; Redox reaction; Organo-iron complex; Organo-ruthenium complex; Mononuclear DTE complexes; PHOTOSWITCHABLE MOLECULAR WIRE; DIARYLETHENES; DTE; DERIVATIVES; RUTHENIUM; CHEMISTRY; BEHAVIOR;

D O I：

10.1016/j.dyepig.2011.03.029

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Photochromic dithienylethene (DTE) derivatives, DTE-MCpL2 {M = Fe, Ru: Cp = eta(5)-cyclopentadienyl; L-2 = (CO)(2), (CO)PPh3, dppe (dppe = Ph2PCH2CH2PPh2)}, with a directly sigma-bonded, redox-active organometallic attachment have been prepared and their response to photo- and electrochemical stimuli has been investigated. It turns out that the color of the organometallic derivatives can be controlled not only by photochromic processes but also by one-electron redox processes. The Ru complexes 1(Ru) and 2(Ru) exhibit reversible photochromism in a manner similar to organic DTE derivatives, with ring closing and ring opening triggered by UV and visible-light irradiation, respectively. Their photochromic behavior is critically dependent on both of the central metal and ligands. One-electron oxidation of the Fe complex 3(Fe) gives the corresponding radical cationic species with a visible absorption. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：854 / 860

页数：7

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