Piezofluorochromic and Aggregation-Induced-Emission Compounds Containing Triphenylethylene and Tetraphenylethylene Moieties
作者:Bingjia Xu、Zhenguo Chi、Jianyong Zhang、Xiqi Zhang、Haiyin Li、Xiaofang Li、Siwei Liu、Yi Zhang、Jiarui Xu
DOI:10.1002/asia.201100211
日期:2011.6.6
New fluorescent compounds containing triphenylethylene and tetraphenylethylene moieties were synthesized, and their piezofluorochromic and aggregation‐induced emission behaviors were investigated. The results show that all compounds exhibit aggregation‐induced emission characteristics and only the crystalline compound possesses piezofluorochromic properties. The color, emission spectra, and morphological
合成了包含三苯基乙烯和四苯基乙烯部分的新型荧光化合物,并研究了它们的压电荧光致变色和聚集诱导的发射行为。结果表明,所有化合物均表现出聚集诱导的发射特性,仅结晶化合物具有压电氟致变色性质。一种压电氟致变色化合物的颜色,发射光谱和形态结构在研磨和退火(或发烟)处理后表现出可逆性。压电致变色行为是由外部压力下固态分子堆积的不同模式之间的变化引起的。单晶X射线衍射分析表明,聚集体诱导的发射化合物的扭曲构象导致形成具有腔的亚稳晶格,该晶格在外压下很容易被破坏。已经提出了一种可能的压电氟致变色现象的机理。