A dual-mode photoswitching investigation

被引:3
|
作者
Barone, PMVB [1 ]
Dantas, SO
Galvao, DS
机构
[1] Univ Fed Juiz De Fora, Dept Fis, BR-36036330 Juiz De Fora, MG, Brazil
[2] Univ Estadual Campinas, Inst Fis, BR-13081970 Campinas, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
semi-empirical models; switches;
D O I
10.1016/S0379-6779(98)00510-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
There is a great interest in the molecular switching processes in part due to the possibility of optical information storage at molecular level. In this work we report a theoretical study on the electronic structure of a dual-mode optical molecular switching system based on thioxantene derivatives helically shaped molecules. There are experimental evidences that these systems present ligth reversible modulation of chirality (cis to trans isomerization). The simulated electronic spectra are in good agreement with the experimental data and we have found a possible explanation on how the protonation interferes with switching mechanism.
引用
收藏
页码:1454 / 1455
页数:2
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