[2+2]-Photocycloaddition reaction of self-assembled crown-containing 2-styrylpyridinium perchlorate in a solid state

被引：7

作者：

Tulyakova, E. V. ^{[1
]}

Fedorova, O. A. ^{[1
]}

Fedorov, Yu. V. ^{[2
]}

Anisimov, A. V. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[2] Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow 119991, Russia

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2008年 / 200卷 / 01期

关键词：

Crown ether; Styrylpyridinium salt; Self-assembly; Photocycloaddition; E-Z isomerization;

D O I：

10.1016/j.jphotochem.2008.02.023

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The dimer assembly of crown ether styrylpyridinium perchlorates (CSP) in solid state and MeCN solution were studied. The obtained data in solid state allowed us to conclude that molecules spontaneously form dimeric complexes. The dimeric complex is stable due to dipole interaction between crown ether donor substitutor of one molecule and the acceptor pyridinium residue of the other one. Irradiation of the dimer complex leads to regio- and stereoselective [2 + 2]-cycloaddition, giving only one cyclobutane isomer. The formation of dimers in solution has not been found. The irradiation of MeCN solution of CSP molecules resulted in the reversible E-Z isomerization. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：90 / 95

页数：6

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