Development of a New Multiple Stimuli-Responsive Fluorescent Material Using the Minus Strategy Based on the Structure of Tetraphenyl-1,3-butadiene

In this study, we
designed and synthesized a new class of aggregation-induced
emission luminogens, which was inspired and developed from the structure
of tetraphenyl-1,3-butadienes derivative (TPB-1) through the minus
strategy by removing one of the phenyl groups. Among them, L1 and L4 exhibited an aggregation-induced emission effect
and multistimuli-responsive chromic behavior. Moreover, two types
of single crystals of L1 were obtained, and their different
emission behaviors were elucidated clearly by analyzing the single-crystal
data.