Structure and Optical Properties of a Thermochromic Schiff Base. Thermally Induced Intramolecular Proton Transfer in the N,N'-Bis(salicylidene)-p-phenylenediamine Crystals

Article abstract of DOI:10.1246/bcsj.61.4207

A thermochromic derivative of salicylideneaniline, N,N'-bis(salicylidene)-p-phenylenediamine (BSP), has been prepared and subjected to structural and optical studies in the crystalline state.An X-ray crystallographic analysis has shown that the molecules