综述了近年来有机光致变色自由基化合物的研究进展,着重介绍了联茚满烯二酮类自由基衍生物的发展.对自由基的生成和变色机理做了较为细致的介绍.
Recent progress in organic photochromic radical is reviewed in this paper, in which special efforts have been given to biindenylidene derivatives. Mechanism of reaction and photochromism of the radical is also introduced.