Photochromism of asymmetrical diarylethenes with a pyrimidine unit: Synthesis and substituent effects

Article abstract of DOI:10.1016/j.dyepig.2013.10.047

Abstract Five photochromic diarylethenes with a six-membered pyrimidine moiety were synthesized to investigate the effects of the substituents on their photochromic behaviors, and the structures of four of the diarylethenes were determined by single-cryst