激发态质子转移的机制探究及其性质调控  

INVESTIGATION OF THE MECHANISM OF EXCITED-STATE PROTON TRANSFER AND REGULATION OF ITS PROPERTIES

作　　者：庄洪斌 乔田田 石薇 李永庆[1] Zhuang Hongbin;Qiao Tiantian;Shi Wei;Li Yongqing(School of Physics,Liaoning University,110036,Shenyang,China)

机构地区：[1]辽宁大学物理学院,沈阳110036

出　　处：《山东师范大学学报(自然科学版)》2024年第4期289-304,共16页Journal of Shandong Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(12404300)。

摘　　要：激发态质子转移(Excited State Proton Trafmfer,ESPT)是一种重要的光诱导质子转移过程,在有机发光材料、环境监测以及生物体系中的光信号传导等领域起着至关重要作用。本文综述了ESPT的基本原理及其在不同条件下的行为。本文首先介绍ESPT的概念及种类,包括单质子转移、双质子转移以及多质子转移等。然后详细地讨论影响和调控ESPT反应的多个因素,包括溶剂效应、电场影响、取代基团效应、π扩展效应和基团位置,以及这些因素如何作用于激发态质子转移的动力学和热力学过程。通过对这些影响因素的综合分析,为理解和调控ESPT提供了深入的见解,这对于开发新型光功能材料等方面具有指导意义。Excited-state proton transfer(ESPT) is an important photo-induced proton transfer process.It plays an important role in the fields such as organic luminescent materials,environmental monitoring,and optical signal transmission in biological systems.The review summarizes the basic principle of ESPT and its behavior under different conditions.This paper first introduces the concept and types of ESPT,including singel-proton transfer of molecules,which is usually accompanied by significant changes in fluorescence characteristics,including single,double proton transfer,and multi-proton transfer.Then,several factors affecting the ESPT reaction are discussed in detail,such as solvent effect,electric field effect,substituent group effect,π expansion effect,and the influence of group position on the ESPT process,as well as how these factors affect the kinetic and thermodynamic of excited-state proton transfer.Through a comprehensive analysis of these influencing factors,this review provides indepth insights into to understanding and regulating ESPT,offering guidance significance for developing novel optical functional materials.

关 键 词：激发态质子转移 荧光特性 机制探究 性质调控 

分 类 号：O561[理学—原子与分子物理]