TPE-Embedded Butterfly Bis-Crown Ether with Controllable Conformation and Supramolecular Chiroptical Property
A series of bis-crown ethers with AIE-active TPE core are synthesized via intramolecular McMurry coupling. The incorporation of flexible side chains into the rigid TPE core results in specific strain on the molecules, generating two conformers with specific semi-rigid symmetric/asymmetric structures
