一种新的含吡唑啉酮氨基硫脲化合物的晶体结构及其光致变色性质

A new photochromic organic compound of thiosemicarbazone, 4-（p-bromo-α-methylaminothiocarbonyl hydrazonobenzal）-2,5-dihydro-3-mcthyl-5-oxo-1-phcnyl pyrazolc, was synthesized and characterized by elemental analyses, IR, ^1H NMR spectra, and X-ray single-crystal diffraction analysis. The compound exhibited an interesting photochromism in the solid state when irradiated by ultraviolet light at 365 nm. The photochromic kinetics was studied by the time-dependent powder UV-Vis reflectance spectra. The intcrmolecular and intramolecular hydrogcn-bonding interactions may be responsible for the photochromic phenomenon.

Crystal Structure and Photochromism of a Novel Organic Compound Condensed by Pyrazolone with Thiosemicarbazide

A new photochromic organic compound of thiosemicarbazone, 4‐(p‐bromo‐α‐methylaminothiocarbonyl hydrazonobenzal)‐2,5‐dihydro‐3‐methyl‐5‐oxo‐1‐phenyl pyrazole, was synthesized and characterized by elemental analyses, IR, ¹H NMR spectra, and X‐ray single‐crystal diffraction analysis. The compound exhibited an interesting photochromism in the solid state when irradiated by ultraviolet light at 365 nm. The photochromic kinetics was studied by the time‐dependent powder UV‐Vis reflectance spectra. The intermolecular and intramolecular hydrogen‐bonding interactions may be responsible for the photochromic phenomenon.