Synthesis and Properties of a Novel Photochromic Compound with Modulated Fluorescence in the Solid State

[摘要]：A new photochromic compound, 1,3-diphenyl-4-(3-bromobenzal)-5-hydroxypyrazole 4-phenylsemicarbazone (DP3BrBP-PSC), has been prepared. Its photochromic and thermobleaching behavior, crystal structure, and fluorescent property have been investigated in detail. The results show that the compound exhibits reversible enol keto photoisomerization due to the intermolecular double-proton transfer, excellent photostability, high fatigue resistance, and remarkable fluorescence.

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