Thermo-to-Photo-Switching of the Chromic Behavior of Salicylideneanilines by Inclusion in a Porous Coordination Network

摘要

Salicylideneanilines (1) are unique chromic compounds that show either photo-or thermochromic properties depending on the substitution patterns of the aromatic rings.In general,the derivatives with nonplanar conformation (phi>25°) are photochromic whereas those with planar conformation (phi< 25°) are thermochromic.To control the chromic properties of 1,numerous derivatives have been synthesized by introducing various substituents on the chromophore.