espt

7-hydroxyquinoline ( 7-HQ ) is a kind of organic molecule with excited-state proton transfer ( ESPT ) effect .

7-羟基喹啉（7-HQ）是一种具有激发态质子转移（ESPT）效应的有机分子。

In contrast , 7-HQ in dimethyl sulfoxide ( DMS ) solution does not cause ESPT reaction . The fluorescence spectrum of the sample exhibits a single band .

7-HQ溶于二甲基亚砜（DMS）溶剂中，则不能发生ESPT反应，其荧光光谱只出现单一荧光带。

All optical switching and excited state proton transfer ( ESPT ) effect of 7-hydroxyquinolin ( 7-HQ ) in dimethyl sulfoxide ( DMS ) solution were investigated .

研究了7-羟基喹啉（7-HQ）在二甲基亚砜（DMS）溶液中的全光光开关效应和激发态质子转移（ES-PT）效应。

Nowadays , the major cities in the country give priority to the development of urban public transit . The Expert System of Public Transit ( ESPT ) has been an important measure to improve the information and modernization of urban public transit system .

当今，全国各大城市正在大力发展城市公共交通事业，公交专家系统成为提高公交系统信息化、现代化的重要措施。

Therefore 7-HQ is an excellent material for all optical switching . However , 7-HQ in DMS solution cannot present ESPT reaction because the intermolecular hydrogen band can not be formed between 7-HQ and DMS .

DMS与7-HQ不能形成分子间氢键，故7-HQ在DMS溶液中不能发生ESPT，不具有全光光开关效应。

The conclusion is that the change in the fluorescence spectrum of 7-HQ in DMS solution is due to the fact that 7-HQ causes ESPT reaction which results from the photodecomposition of DMS and the product of water after the solution was irradiated with strong UV light .

认为7-HQ溶于DMS中被强紫外光照射后荧光光谱的变化是由于DMS被光解并生成水而使7-HQ发生ESPT反应的结果。