Unusual stability of thermally induced colored isomers of photochromic 3-aryl-3-(1-naphthyl)-3 H -naphtho[2,1- b ]pyrans in solid state
作者:Kunpeng Guo、Jun Cheng、Xiaozhong Liang、Yaxiong Cao、Boyang Chu、Xuguang Liu
DOI:10.1016/j.tetlet.2015.05.043
日期:2015.6
Pure solid colorless powder of photochromic 3-aryl-3-(1-naphthyl)-3H-naphtho[2,1-b]pyrans were converted to their colored isomers in molten state. The solid colored isomers exhibit unusual stability at ambient temperature. (C) 2015 Elsevier Ltd. All rights reserved.