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.
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Published in Angewandte Chemie International Edition, Volume 56, Issue 16, 2017, pages 4525-4529.
© 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Rice, A. M., Fellows, W. B., Dolgopolova, E. A., Greytak, A. B., Vannucci, A. K., Smith, M. D., Karakalos, S. G., Krause, J. A., Avdoshenko, S. M., Popov, A. A., & Shustova, N. B. (2017). Hierarchical corannulene‐based materials: Energy Transfer and solid‐state Photophysics. Angewandte Chemie International Edition, 56(16), 4525–4529. https://doi.org/10.1002/anie.201612199