Abstract
Novel photoresponsible chiral supramolecule 4SES was prepared and its chiral switching and thermal stability were measured. 4SES shows reversible CD change up on photoirradiation, due to face angle change of binaphthyl group induced by trans-cis photoiromerization. The cis isomer of 4SES has high thermal stability whose absorption does not change even by heating at 100 ° for 2 hours, which is quite contrast to the case of 3RAA. 4SES is expected as the potential materials for chiral optical data storage, asymmetric synthesis, and so on.