两种吡唑啉酮类变色化合物的合成及光学性能研究

Organic photochromic materials have attracted considerable attention due to their potential applications in information storage, molecular switches and holographic anti-counterfeiting. Pyrazolone is a well-known kind of solid-state organic photochromic material. However, most of the compounds only show irreversible photochromic. Two new reversible photochromic compounds were synthesized by introducing double substituents of phenyl ring on the 4-position of the pyrazolone ring and characterized by MS, NMR, FT-IR spectra. These two compounds exhibit photochromic properties and thermally enhanced phenonmenon in the solid state. They also show excellent fluorescent switch properties and high fatigue resistance.