Two photochromic bisbenzothienylethenes with two fluorescent (4-((2,5-bis(dodecyloxy)-4-(phenylethynyl)phenyl)ethynyl)phenyl) units and their disulfone derivatives were synthesized, and their photochromic and fluorescence properties were examined. Bisbenzothienylethenes showed photochromism and turn-off type fluorescence by UV-light irradiation, while their disulfone derivatives showed turn-on type fluorescence and the one-way isomerization to the closed form.

中文翻译：

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光致变色和bisbenzothienylethene的荧光特性和小号，小号，小号'，小号'与它们的侧链双共轭的荧光基团-tetraoxide衍生物†

合成了具有两个荧光（4-（（2,5-双（十二烷基氧基）-4-（苯基乙炔基）苯基）乙炔基）苯基）单元的两个光致变色双苯并噻吩基乙烯及其二砜衍生物，并对其光致变色和荧光性质进行了研究。双苯并噻吩基乙烯通过紫外线照射显示出光致变色和关闭型荧光，而它们的二砜衍生物显示了打开型荧光和单向异构化为封闭形式。