Fluoride-ion-binding promoted photoinduced charge separation in a self-assembled C60 alkyl cation bound bis-crown ether-oxoporphyrinogen supramolecule

Whitney A Webre; Habtom B Gobeze; Shuai Shao; Paul A Karr; Katsuhiko Ariga; Jonathan P Hill; Francis D'Souza

doi:10.1039/c7cc09524d

Fluoride-ion-binding promoted photoinduced charge separation in a self-assembled C₆₀ alkyl cation bound bis-crown ether-oxoporphyrinogen supramolecule

Chem Commun (Camb). 2018 Feb 1;54(11):1351-1354. doi: 10.1039/c7cc09524d.

Authors

Whitney A Webre¹, Habtom B Gobeze, Shuai Shao, Paul A Karr, Katsuhiko Ariga, Jonathan P Hill, Francis D'Souza

Affiliation

¹ Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203-5017, USA. Francis.DSouza@unt.edu.

PMID: 29350717
DOI: 10.1039/c7cc09524d

Abstract

A bis-crown ether-oxoporphyrinogen was newly synthesized and self-assembled concurrently with C₆₀ alkyl ammonium cations at the crown ether sites and F^- anions (through hydrogen bonding) at the oxoporphyrinogen core. Ultrafast photoinduced charge transfer processes within the donor-acceptor conjugate were promoted by fluoride ion binding and this was established using various spectroscopic methods and transient absorption studies.