Synthesis and spectroscopic studies of novel photochromic benzodithiacrown ethers and their complexes

被引：41

作者：

Alfimov, MV ^{[1
]}

Fedorov, YV ^{[1
]}

Fedorova, OA ^{[1
]}

Gromov, SS ^{[1
]}

Hester, RE ^{[1
]}

Lednev, IK ^{[1
]}

Moore, JN ^{[1
]}

Oleshko, VP ^{[1
]}

Vedernikov, AI ^{[1
]}

机构：

[1] UNIV YORK,DEPT CHEM,YORK YO1 5DD,N YORKSHIRE,ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1996年 / 07期

关键词：

D O I：

10.1039/p29960001441

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

New styryl dyes containing the benzodithia-18-crown-6 fragment have been synthesized and their photoisomerization reactions and complexes with Hg2+ and Ag+ cations have been investigated by steady-state electronic and resonance Raman spectroscopy. (4-Formylbenzo)dithia-18-crown-6, N-carboxypropyl- and N-carboxybutyl-2-methylbenzothiazolium bromides have also been prepared as intermediates for the styryl dye syntheses. Changes in vibrational resonance Raman spectra observed on complexation with Ag+ and Hg2+ cations or on variation of solvent polarity have been correlated with changes in the UV-VIS absorption maxima of the dyes. Preliminary assignments of the observed Raman bands to particular vibrations are made.

引用

页码：1441 / 1447

页数：7

共 23 条

[1] DEPENDENCE OF METAL-ION COMPLEXATION AND INTERMOLECULAR AGGREGATION ON PHOTOINDUCED GEOMETRIC ISOMERISM IN A CROWN-ETHER STYRYL DYE [J].