Excited state proton transfer effect of 7-hydroxyquinoline in dimethyl sulfoxide solvent  

作　　者：GUO Yang-xue LI Xiang-ping ZHENG Jia-jin ZHANG Gui-lan LIU Jing-jiang CHEN Wen-Ju 

机构地区：[1]Nankai University, Institute of Modern Optics, Key Laboratory of Opto-electronics Information Technical science, EMC, Tianjin 300071, China [2]Nankai University, College of Chemistry, Tianjin 300071, China

出　　处：《Optoelectronics Letters》2006年第2期115-117,共3页光电子快报（英文版）

基　　金：SupportedbyNationalNaturalScienceFoundationofChina(No.60178025)andtheFoundationofOptoelectronicInformationandTechnologyLaboratory,EMC.

摘　　要：7-hydroxyquinoline (7-HQ) is a kind of organic molecule with excited state proton transfer (ESPT) effect,and can be used as the material for all optical switching.This optical switching takes place via the ESPT effect depending on its intermolecular hydrogen bond formed with the solvent,and can have the effect of all optical switching.7-HQ can not form intermolecular hydrogen bond with dimethyl sulfoxide (DMSO),so 7-HQ in DMSO solution cannot display the ESPT effect.However,after the solution was radiated by an UV laser, we found that 7-HQ could have ESPT effect.This phenomenon is reported and the mechanism is investigated for the first time in this paper.

关 键 词：质子迁移 有机分子 二甲基溶剂 光学开关 

分 类 号：O482.7[理学—固体物理] TQ422[理学—物理]