%0 Journal Article
%T Two novel chiral AIEgens as coordination precursors: synthesis, structures and photophysical study.
%A Xue Y
%A Tang S
%A He X
%A Tian Z
%A Kong W
%A Zhao P
%A Zhang J
%J Spectrochim Acta A Mol Biomol Spectrosc
%V 310
%N 0
%D 2024 Apr 5
%M 38290279
%F 4.831
%R 10.1016/j.saa.2024.123960
%X Two novel chiral molecules, (4S)-5,5-dimethyl-2-(4-oxo-4H-chromen-3-yl)thiazolidine-4-carboxylic acid (OCCA) and (4S)-5,5-dimethyl-2-(4-(1,2,2-triphenylvinyl)phenyl)thiazolidine-4-carboxylic acid (TPCA), were successfully synthesized by aldehyde amine condensation reaction, and their structures were characterized by 1H NMR and single crystal X-ray diffraction. The intensities of photoluminescence changed with the aggregation, exhibiting that OCCA and TPCA are aggregation-induced emission luminogens (AIEgens). After complete aggregation, OCCA emitted the purple-blue light at the peak of 388 nm and TPCA emitted the cyan light at the peak of 488 nm. The aggregation-induced emission (AIE) effects for OCCA and TPCA resulted from local state to twisted intermolecular charge transfer (TICT) and restriction of intramolecular motion (RIM), respectively. Other spectra including UV-vis, IR, and Raman spectra were also discussed in detail.