Photoinduced charge separation in an oligophenylenevinylene-based Hamilton-type receptor supramolecularly associating two C60-barbiturate guests

G. Pagona; A. Stergiou; H. B. Gobeze; G. Rotas; F. D'Souza; N. Tagmatarchis

doi:10.1039/C5CP05657H

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Photoinduced charge separation in an oligophenylenevinylene-based Hamilton-type receptor supramolecularly associating two C₆₀-barbiturate guests†

G. Pagona,^a A. Stergiou,^a H. B. Gobeze,^b G. Rotas,^a F. D'Souza*^b and N. Tagmatarchis*^a

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* Corresponding authors

^a Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Contantinou Avenue, Athens 11635, Greece
E-mail: tagmatar@eie.gr
Fax: +30 210 7273794
Tel: +30 210 7273835

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

Abstract

The supramolecular association of an oligophenylene-vinylene (OPV)-based Hamilton-type receptor 1 with C₆₀-barbiturate 2, via six hydrogen bonds per OPV terminal, forming C₆₀/OPV/C₆₀ complex 3 is presented. The particular host–guest motif expressed in 3 ensures strong interactions between the discrete components of the complex based on the multiple hydrogen bonding interactions as conveyed by an association constant greater than 10⁵ M⁻¹. Furthermore, femto- and nano-second transient absorption studies disclose photoinduced charge separation from ¹OPV* to C₆₀ within 9.4 ps. The observed ultrafast charge separation phenomena in the C₆₀/OPV/C₆₀ complex open up wide avenues toward the efficient construction of new materials for optoelectronic and solar cell applications.

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Article information

DOI: https://doi.org/10.1039/C5CP05657H
Article type: Paper
Submitted: 21 Sep 2015
Accepted: 17 Nov 2015
First published: 17 Nov 2015

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Phys. Chem. Chem. Phys., 2016,18, 811-817

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Photoinduced charge separation in an oligophenylenevinylene-based Hamilton-type receptor supramolecularly associating two C₆₀-barbiturate guests

G. Pagona, A. Stergiou, H. B. Gobeze, G. Rotas, F. D'Souza and N. Tagmatarchis, Phys. Chem. Chem. Phys., 2016, 18, 811 DOI: 10.1039/C5CP05657H

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