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

Literature Information

Publication Date 2015-11-17
DOI 10.1039/C5CP05657H
Impact Factor 3.676
Authors

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


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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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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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