Chemistry Letters, Vol.32, No.11, 1078-1079, 2003
Synthesis and photochromism of diarylethenes with isopropyl groups at the reactive carbons and long pi-conjugated heteroaryl groups
Diarylethenes with long pi-conjugated heteroaryl groups were synthesized and their absorption spectra, photocyclization and cycloreversion quantum yields, and thermal stability were examined. The diarylethene with isopropyl groups at the reactive carbons was found to have a low decoloration quantum yield and thermal reversibility at high temperature above 100degreesC.