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Angew Chem Int Ed Engl. 2017 Apr 10;56(16):4525-4529. doi: 10.1002/anie.201612199. Epub 2017 Mar 23.

Hierarchical Corannulene-Based Materials: Energy Transfer and Solid-State Photophysics.

Author information

1
Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC, 29208, USA.
2
College of Engineering and Computing, Swearingen Engineering Center, Columbia, SC, 29208, USA.
3
Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA.
4
Leibniz Institute for Solid State and Materials Research, 01069, Dresden, Germany.

Abstract

We report the first example of a donor-acceptor corannulene-containing hybrid material with rapid ligand-to-ligand energy transfer (ET). Additionally, we provide the first time-resolved photoluminescence (PL) data for any corannulene-based compounds in the solid state. Comprehensive analysis of PL data in combination with theoretical calculations of donor-acceptor exciton coupling was employed to estimate ET rate and efficiency in the prepared material. The ligand-to-ligand ET rate calculated using two models is comparable with that observed in fullerene-containing materials, which are generally considered for molecular electronics development. Thus, the presented studies not only demonstrate the possibility of merging the intrinsic properties of π-bowls, specifically corannulene derivatives, with the versatility of crystalline hybrid scaffolds, but could also foreshadow the engineering of a novel class of hierarchical corannulene-based hybrid materials for optoelectronic devices.

KEYWORDS:

MOFs; corannulene; energy transfer; photoluminescence; photophysics

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