Molecular Crystals and Liquid Crystals, Vol.430, 75-79, 2005
Synthesis of new photochromic diarylethenes having 2,5-bis(trimethylsilyiethynyl)-3-thienyl unit
New diarylethenes having a trimethylsilylethynyl substituent at the 2,5-position of the thiophene ring were synthesized. Diarylethene moiety are located in the middle of the pi-conjugated chain. These molecules underwent a photochromic reaction in solution. This molecule can be used as a switching unit in the it-conjugated polymer or oligomer.