[2.2](4,4')AZOBENZENOPHANE - SYNTHESIS, STRUCTURE, AND CIS-TRANS ISOMERIZATION

被引：32

作者：

TAMAOKI, N ^{[1
]}

OGATA, K ^{[1
]}

KOSEKI, K ^{[1
]}

YAMAOKA, T ^{[1
]}

机构：

[1] CHIBA UNIV,CTR CHEM ANAL,CHIBA 260,JAPAN

来源：

TETRAHEDRON | 1990年 / 46卷 / 17期

关键词：

D O I：

10.1016/S0040-4020(01)87918-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The title compound 2 was synthesized by the reduction of 1,2-bis(4'-nitrophenyl) ethane. Spectral data and results of X-ray crystal structure analyses suggest that facing two azobenzene units in 2 are deformed from the planes both in solution and crystal. The cis-cis form of2 (cc-2), which was generated photochemically, isomerized thermally via the transcis form (tc-2), whose life time was only 22 second at 25°C, to the trans-trans form (tt-2). Due to a short life time of tc-2, the efficiency of photo-isomerization of 2 from tt-2 to cc-2 became light intensity dependent. © 1990.

引用

页码：5931 / 5942

页数：12

共 30 条

[1] TEMPERATURE AND PRESSURE DEPENDENCES OF THERMAL CIS-TO-TRANS ISOMERIZATION OF AZOBENZENES WHICH EVIDENCE AN INVERSION MECHANISM [J].