Zhu Xinju, Pan Yaru, Zhao Xinran, Yuan Yu, Zhai Zewen, Yu Xiaoni, Zhang Wenjing, Chang Yuanyuan, Song Bing, Shi Linlin, Hao Xinqi
College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, China.
Molecules. 2024 Sep 19;29(18):4447. doi: 10.3390/molecules29184447.
Developing red fluorescence emitters with simple structures via convenient synthetic routes is highly desirable yet challenging. Herein, two novel donor-acceptor-type red emitters, DCFOPV-TPA and SCFOPV-TPA, featuring the intramolecular charge transfer effect were designed by integrating triphenylamine and trifluoromethyl into a CN-substituted oligo(-phenylene vinylene) backbone. Both chromophores exhibited aggregation-induced enhanced emission and solvatochromic behavior. Moreover, DCFOPV-TPA also displayed reversible mechanofluorochromic properties under external force.
通过简便的合成路线开发具有简单结构的红色荧光发射体是非常理想但具有挑战性的。在此，通过将三苯胺和三氟甲基整合到氰基取代的聚（亚苯基亚乙烯基）主链中，设计了两种具有分子内电荷转移效应的新型供体-受体型红色发射体DCFOPV-TPA和SCFOPV-TPA。两种发色团均表现出聚集诱导增强发射和溶剂化变色行为。此外，DCFOPV-TPA在外力作用下还表现出可逆的机械荧光变色性质。
