Synthesis of a novel rigid molecule family for the investigation of electron and energy transfer

被引:57
作者
Beyeler, A [1 ]
Belser, P [1 ]
机构
[1] Univ Fribourg, Dept Chem, CH-1700 Fribourg, Switzerland
关键词
energy transfer; electron transfer; molecular devices; bipyridyl complexes; bridging ligands; dinuclear metal complexes;
D O I
10.1016/S0010-8545(02)00045-0
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Three new rigid bridging ligands for metal complexation (7 = bmb, 8 = bqb and 11 = btb) were prepared from a rigid triptycene spacer connected to two bipyridin-p ligands using a Horner-Emmons type reaction. The triptycene spacer is substituted by methoxy groups in the case of bmb and in the case of bqb by a benzoquinone substituent. The corresponding metal complexes (ruthenium and/or osmium) were synthesised and the different luminescence behaviour was tested. They show great potential for the investigation of intramolecular electron and energy transfer reactions. The dinuclear metal complex Ru-bqb-Os is an interesting system in which the bridging ligand bqb acts as a redox switch, able to tune the conductivity for energy or electrons across the bridge. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:29 / 39
页数:11
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