Linear molecules with ethynylpyridine and bisbenzothiadiazole units

被引:8
作者
Akhtaruzzaman, M
Tomura, M
Nishida, J
Yamashita, Y
机构
[1] Tokyo Inst Technol, Dept Elect Chem, Midori Ku, Yokohama, Kanagawa 2268502, Japan
[2] Grad Univ Adv Studies, Dept Struct Mol Sci, Okazaki, Aichi 4448585, Japan
关键词
heterocycle synthesis; transition-metal-catalysed reactions; photoluminescence; X-ray diffraction; organic semiconductors based on conjugated molecules;
D O I
10.1016/S0379-6779(02)01113-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
7,7'-Bis(pyridylethynyl)-4,4'-bis(2,1,3-benzothiadiazole) derivatives were synthesized using the Sonogashira reaction. X-ray structure analysis of the 4.4'-dipyridyl derivative revealed the linear molecular structure with an unusual tape-like crystal structure. They show high electron affinity and fluorescence with large Stokes shifts. The viologen analogues were also prepared by methylation of the pyridyl nitrogen atoms.
引用
收藏
页码:873 / 874
页数:2
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