New proton transfer lasing systems—derivatives of 2,2′-bipyridyl. Synthesis and photophysical characteristics
作者:Ł. Kaczmarek、B. Nowak、J. Z̊ukowski、P. Borowicz、J. Sepiol、A. Grabowska
DOI:10.1016/0022-2860(91)85013-s
日期:1991.8
Abstract Two new bipyridyl derivatives undergoing the excited state intramolecular proton transfer were synthesized: 5-methyl-[2,2′-bipyridine]-3,3′-diol and 5,5′-dimethyl-[2,2′-bipyridine]-3,3′-diol. Both reveal a strong phototautomeric, largely Stokes-shifted fluorescence and can be used as proton transfer laser dyes. Tuning ranges and lasing efficiences are also reported.
摘要 合成了两种进行激发态分子内质子转移的新型联吡啶衍生物:5-甲基-[2,2'-联吡啶]-3,3'-二醇和5,5'-二甲基-[2,2'-联吡啶] -3,3'-二醇。两者都显示出强烈的光互变异构体,主要是斯托克斯位移的荧光,可用作质子转移激光染料。还报告了调谐范围和激光效率。