One-dimensional co-crystallized coordination polymers showing reversible mechanochromic luminescence: cation–anion interaction directed rapid self-recovery†
Abstract
Three one-dimensional (1D) chain polymers (1D-9HAC, 1D-Cd-9AC, and 1D-Cd-9AC–HBIM) that exhibit different intermolecular interactions and stacking patterns have been designed and synthesized. Only 1D-Cd-9AC–HBIM with rigid (anion) and flexible (cation) units alternately arranged exhibits mechanochromic luminescence, which can be recovered through rapid solvent treatment or a self-recovery process.