Novel dimers of 2,2′-(m-phenylene)bis(4,5-diphenyl-1-imidazolyl) diradical

被引：20
|
作者：
Okada, K [1 ]
Imamura, K
Oda, M
Kozaki, M
Morimoto, Y
Ishino, K
Tashiro, K
机构：
[1] Osaka City Univ, Grad Sch Sci, Dept Chem, Sumiyoshi Ku, Sugimoto, Osaka 5588585, Japan
[2] Osaka Univ, Grad Sch Sci, Dept Chem, Toyonaka, Osaka 5600043, Japan
来源：
CHEMISTRY LETTERS | 1998年 / 09期
关键词：
D O I：
10.1246/cl.1998.891
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The oxidation of 2,2'-(m-phenylene)bis(4,5-diphenylimidazole) 1 with potassium ferricyanide in benzene-aqueous KOH heterogeneous solution gave the diradical dimers 2 and 3. The dimer 2 showed photochromic and piezochromic properties, whereas the dimer 3 has only photochromic property. The structure of the dimers was deduced by NMR analyses. The X-ray structural analysis revealed that the dimer 3 has a novel syn-[3.3]metacyclophane structure.
引用
收藏
页码：891 / 892
页数：2
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