A Mechanofluorochromic Push-Pull Small Molecule with Aggregation-Controlled Linear and Nonlinear Optical Properties
Résumé
A small push–pull molecule involving a diphenylamine substituted by an oligo‐oxyethylene chain is described. The compound exhibits aggregation‐induced emission with solvent‐dependent emission wavelength. Spin‐cast deep‐red amorphous films rapidly self‐reorganize into colorless crystalline films which exhibit mechanofluorochromism and aggregation‐induced second‐harmonic generation.