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Screening Nanographene-Mediated Inter(Porphyrin) Communication to Optimize Inter(Porphyrin–Fullerene) Forces

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Title
Screening Nanographene-Mediated Inter(Porphyrin) Communication to Optimize Inter(Porphyrin–Fullerene) Forces
Author(s)
Philipp Haines; Ramandeep Kaur; Max M. Martin; Martin B. Minameyer; Stefan Frühwald; Simon Bönisch; Dominik Lungerich; Frank Hampel; Andreas Görling; Thomas Drewello; Norbert Jux; Dirk M. Guldi
Publication Date
2021-05
Journal
Advanced Energy Materials, v.11, no.17
Publisher
John Wiley and Sons Inc
Abstract
© 2021 The Authors. Advanced Energy Materials published by Wiley-VCH GmbHMultifunctional molecular materials comprising porphyrins and fullerenes have served as perfect prototypes to study key aspects of natural photosynthesis starting at light harvesting and energy transfer processes all the way to charge separation, charge shift, and charge recombination. Herein, hexa-peri-hexabenzocoronenes (HBCs) are explored, decorated with one, two, and six porphyrins at their peripheral positions, within the context of replicating key steps of photosynthesis. The major focus of the investigations is to screen inter(porphyrin) communications across the HBC platform as a function of the substitution pattern and to optimize the intermolecular forces with fullerenes. To this end, the ground- and excited-state features are investigated in the absence of C60 and C70 by employing an arsenal of spectroscopic methods. Further insights into inter(porphyrin) communications come from time-dependent density-functional theory (TDDFT) calculations. In the presence of C60 and C70, X-ray crystallography, steady-state and time-resolved spectroscopy, and mass spectrometry corroborate exceptionally strong inter(porphyrin–fullerene) interactions in the solid, liquid, and gas phases. The experiments are backed-up with DFT calculations of the geometrically optimized and energetically stable complex configuration.
URI
https://pr.ibs.re.kr/handle/8788114/11068
DOI
10.1002/aenm.202100158
ISSN
1614-6832
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > 1. Journal Papers (저널논문)
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