【摘 要】
：
A pair of new enantiomeric compounds,(R)/(S)-1,3,5-benzene-triyl-2,2\',2\"-tris(4,5-dihydrothiazole-4-carboxylic acid) (H3LRRR and H3Lsss) are synthesized in one step synthetic route with high yield.Instant photochromism has been investigated to elabo
【机 构】
：
School of Chemistry and Chemical Engineering,Frontiers Science Center for Transformative Molecules,S
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A pair of new enantiomeric compounds,(R)/(S)-1,3,5-benzene-triyl-2,2\',2\"-tris(4,5-dihydrothiazole-4-carboxylic acid) (H3LRRR and H3Lsss) are synthesized in one step synthetic route with high yield.Instant photochromism has been investigated to elaborate the photocatalytic decarboxylation of the dihydrothiazole derivative by electron paramagnetic resonance spectroscopy (EPR),photolu-minescence (PL),FT-IR,high resolution mass spectra,X-ray photoelectron spectroscopy and UV-Vis spectroscopic techniques.The results indicate that the photochromic transformation is originated from the formation of the radical during the photocatalytic de-carboxylation of the 4,5-dihydrothiazole-4-carboxylic acid units.
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