Molecular motions of a tetraphenylethylene-derived AIEgen directly monitored through in situ variable temperature single crystal X-ray diffraction

Abstract

One organic functional group was introduced to distinguish the four phenyl rings of tetraphenylethylene, and the in situ temperature-dependent crystal structures were determined to exhibit conformational changes of tert-butyl (3-(1,2,2-triphenylvinyl)phenyl)carbamate (denoted as BTPC). The isotropic displacement parameters of each phenyl further confirm the inequivalent vibrations of the molecule resulting from the anisotropy of the crystal.