Synthesis and X-ray single-crystal structure study of 5,5′-bis(silyl)-functionalized 3,3′-dibromo-2,2′-dithiophenes

被引:5
|
作者
Baumgartner, T [1 ]
机构
[1] Rhein Westfal TH Aachen, Inst Anorgan Chem, D-52074 Aachen, Germany
关键词
oligothiophenes; electronic materials; synthesis; X-ray structure;
D O I
10.1002/aoc.917
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A high-yield synthesis toward 5,5'-bis(silyl)-functionalized 3,3'-dibromo-2,2'-dithiophenes with very efficient work-up procedure is presented. The molecular structures of two silyl functionalized dibromo-dithiophenes in the solid state have been determined to investigate the structural influences of different functional groups on the degree of pi-conjugation within the dithiophene moieties, as well as their packing properties. The planar alignment of the tert-butyldimethylsilyl-functionalized dibromo-dithiophene shows a significantly higher degree of conjugation of the pi-system with a more favorable molecular packing than the skewed arrangement of the triisopropylsilyl-substituted species. Copyright (c) 2005 John Wiley & Sons, Ltd.
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页码:859 / 863
页数:5
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