Synthesis and properties of a novel photochromic compound with modulated fluorescence in the solid state

J Org Chem. 2010 Jul 16;75(14):4742-7. doi: 10.1021/jo100372z.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallography, X-Ray
  • Fluorescence
  • Isomerism
  • Light
  • Molecular Structure
  • Photochemistry
  • Protons
  • Semicarbazones / chemical synthesis*
  • Semicarbazones / chemistry

Substances

  • 1,3-diphenyl-4-(3-bromobenzal)-5-hydroxypyrazole 4-phenylsemicarbazone
  • Protons
  • Semicarbazones