Chiral recognition of 2-alkyl alcohols with porphyrin J-nanoaggregates at the liquid–liquid interface

Abstract

The J-aggregate of diprotonated tetraphenylporphyrin (H₄TPP²⁺) formed at the dodecane–water interface showed circular dichroism spectra corresponding to the chirality of 2-alkyl alcohols, longer than 2-butanol, added to the dodecane phase. The phenomenon suggested the preferential interaction between the nano-sized J-aggregates and the chiral alcohols at the interface, and provided a potential use of the J-nanoaggregate as a chiral recognition probe.