Tetraphenylethene-based tetracationic dicyclophanes: synthesis, mechanochromic luminescence, and photochemical reactions
Hao Nian, Aisen Li, Yawen Li, Lin Cheng, Ling Wang, Weiqing Xu, Liping Cao
Abstract
Two tetraphenylethene-based tetracationic dicyclophanes 1 and 2 were synthesized via a one-step SN2 reaction. Based on the central TPE unit and the slight difference of the outer linkers, 1 and 2 exhibited a classic aggregation-induced emission but contrasting mechanochromic luminescence under grinding, vaporing, or hydrostatic pressure in the solid state, and photochemical reactions with various emitting colours induced by photoirradiation in the solution state.
Topics & Concepts
LuminescencePhotochemistrySN2 reactionHydrostatic pressureSolid-stateChemistryMaterials scienceOptoelectronicsStereochemistryPhysical chemistryPhysicsThermodynamicsLuminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionSupramolecular Chemistry and Complexes