Fachbereich Chemie, Universität Konstanz, D-78457 Konstanz, Germany.
Chem Commun (Camb). 2012 Nov 28;48(92):11355-7. doi: 10.1039/c2cc35726g.
Several difurylperfluorocyclobutenes showing reversible photochromism were synthesized. In comparison to their cyclopentene homologues they show enhanced quantum yields for ring opening but reduced quantum yields for ring closure. X-ray structure analysis and quantum chemical calculations provide a conclusive explanation for such a behaviour.
几种显示出可逆光致变色性的二呋喃基全氟环丁烯被合成了。与它们的环戊烯同系物相比，它们的开环量子产率增加，但闭环量子产率降低。X 射线结构分析和量子化学计算为这种行为提供了一个确凿的解释。
