AI Article Synopsis
- Two chiral molecules, OCCA and TPCA, were synthesized and characterized using aldehyde amine condensation, H NMR, and single crystal X-ray diffraction.
- These molecules exhibit unique photoluminescence properties, changing colors when they aggregate—OCCA emits purple-blue light (388 nm) while TPCA emits cyan light (488 nm).
- The observed aggregation-induced emission (AIE) effects are attributed to mechanisms involving twisted intermolecular charge transfer (TICT) and restriction of intramolecular motion (RIM), along with detailed discussions on their UV-vis, IR, and Raman spectra.
Article Abstract
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 H 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.
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| http://dx.doi.org/10.1016/j.saa.2024.123960 | DOI Listing |
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