AGGREGATES OF HEXAKIS(N-HEXYLOXY)TRIPHENYLENE SELF-ASSEMBLE IN DODECANE SOLUTION - INTERCALATION OF (-)-MENTHOL 3,5-DINITROBENZOATE INDUCES FORMATION OF HELICAL STRUCTURES

摘要

Concentrated dodecane solutions of hexakis(n-hexyloxy)triphenylene form columnar aggregates as evidenced by optical spectroscopy. Addition of either ethyl 3,5-dinitrobenzoate, (+)-2'-octyl 3,5-dinitrobenzoate, (-)-2'-butyl 3,5-dinitrobenzoate, or (-)-menthol 3,5-dinitrobenzoate to these solutions results in the formation of charge-transfer complexes as shown by examination of their optical spectra. Investigation of the circular dichroism spectra of the charge-transfer complexes Suggests that intercalation of the menthol ester in the columnar aggregate induces a helical twist to the structure. [References: 13]