Helicity Induction and Two-Photon Absorbance Enhancement in Zinc(II) Meso−Meso Linked Porphyrin Oligomers via Intermolecular Hydrogen Bonding Interactions

Abstract

Helicity has been induced in meso-meso linked oligomers by hydrogen bonding host-guest interactions with cyclic urea. Helical porphyrin arrays thus formed exhibit chirality amplification and enhanced two-photon absorption properties.