TIME-RESOLVED FLUORESCENCE STUDY OF TRIPLE EXCIPLEX FORMED IN THE SYSTEM OF POLY(2-VINYL) NAPHTHALENE AND TEREPHTHALIC DIMETHYLESTER
TIME-RESOLVED FLUORESCENCE STUDY OF TRIPLE EXCIPLEX FORMED IN THE SYSTEM OF POLY(2-VINYL) NAPHTHALENE AND TEREPHTHALIC DIMETHYLESTER作者机构:Institute of Chemistry Academia Sinica Beijing 100080 PRC
出 版 物:《Science China Chemistry》 (中国科学(化学英文版))
年 卷 期:1991年第34卷第1期
页 面:26-34页
核心收录:
主 题:triple exciplex exciplex poly(2-vinyl) naphthalene 2-vinylnaphthalene time-resolved fluorescence
摘 要:An intramolecular excimer of poly(2- vinyl) naphthalene was formed by non-adjacent chromophores interaction, then a triple exciplex was formed by interaction with the acceptor molecule further in dilute solution. The lifetime of the intramolecular excimer of poly(2- vinyl) naphthalene, τ_2 = 18.83 ns and the rate constant for the triple exciplex formation, k_7 = 4. 18× 10~9 (mol/L)^(-1)s^(-1), under diffusion-control were measured. An excimer or an exciplex could be an intermediate of the triple exciplex formation. A theoretical model of the triple exciplex formation is proposed.