Synthesis And Properties Of Diarylethene Photochromic Materials Connected With Small Functional Moleculars By C=N Double Bond

Orgnic photochromic materials can record information in the form of photon. Due to their excellent characters of large capacity and high-speed, these materials have potential application in data storage and molecular switchs. In particular, diarylethene photochromic materials have been widely focused because of their excellent photochromic property, fatigue resistance and thermal stability properties. Nowadays, connecting many functional moleculars to the diarylethene photochromic materials to acquire new diarylethene photochromic materials is becoming research priorities.We have connected many functional moleculars, such as rhodamine B, triptycene, pyrazolone and subphthalocyanine, to the diarylethene photochromic materials and researched their influences to the parent molecule 1,2-Bis(5-chloro-2-methylthien-3-yl)cyclopentene. The results indicated that diarylethene photochromic materials connected with rhodamine B had good photochromic property and responsed quickly, and these compounds cound be used to direct Cr3+ in the solution. Diarylethene photochromic materials connected with triptycene had photochromic property but responsed slowly. Diarylethene photochromic materials connected with pyrazolone did not have photochromic property, but they cound direct CN- in the solution. And last, diarylethene photochromic materials connected with subphthalocyanine did not have photochromic property, which maybe because of the unstable structure of subphthalocyanine under UV-light.