Synthesis, crystal structure, and photoreaction of a disiloxane bearing two 2-(phenylazo)phenyl groups

被引:20
作者
Kano, N [1 ]
Yamamura, M [1 ]
Komatsu, F [1 ]
Kawashima, T [1 ]
机构
[1] Univ Tokyo, Grad Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
关键词
silicon; disiloxane; isomerization; irradiation; azobenzene; X-ray crystallographic analysis;
D O I
10.1016/S0022-328X(03)00447-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
An E,E-1,1,3,3-tetrafluoro-1,3-bis[2-(phenylazo)phenyl]-1,3-disiloxane (E,E-2) was synthesized by hydrolysis of E-trifluoro[2-(phenylazo)phenyl]silane (E-1). Its structure was characterized by H-1-, C-13- F-19-, and Si-29-NMR spectroscopy and X-ray crystallographic analysis showing two pentacoordinate silicon atoms with Si-N interactions. Photoirradiation of E,E-2 caused both isomerization of the azo group and formation of the corresponding Z-1 in a short time, while upon standing in the dark the E-1 was formed very slowly. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:192 / 197
页数:6
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