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Supramolecular Fullerene Tetramers Concocted with Porphyrin Boxes Enable Efficient Charge Separation and Delocalization

Title
Supramolecular Fullerene Tetramers Concocted with Porphyrin Boxes Enable Efficient Charge Separation and Delocalization
Authors
Xiujun YuBingzhe WangYounghoon KimJiyoung ParkSamrat GhoshBarun DharaRahul Dev MukhopadhyayJaehyoung KooIkjin KimSeungha KimIn-Chul HwangShu SekiDirk M. GuldiMu-Hyun BaikKimoon Kim
Date Issued
22-Jul-2020
Publisher
AMER CHEMICAL SOC
Abstract
Herein, we report a novel porphyrin/fullerene supramolecular cocrystal using a shape-persistent zinc-metalated porphyrin box (Zn-PB) and C-60/C-70. An unprecedented arrangement of a tightly packed square-planar core of four C-60 or C-70 surrounded by six cube-shaped Zn-PBs was observed. This unique packing promotes strong charge transfer (CT) interactions between the two components in the ground state and formation of charge-separated states with very long lifetimes in the excited state and enables unusually high photoconductivity. Quantum chemical calculations show that these features are enabled by delocalized orbitals that promote the CT, on one hand, and that are spatially separated from each other, on the other hand. This work may open a new avenue to design novel electron donor/acceptor architectures for artificial photosynthesis.
Keywords
NANOSHEETS; INTERFACE; COMPLEXES; CHEMISTRY
URI
http://oasis.postech.ac.kr/handle/2014.oak/103945
ISSN
0002-7863
Article Type
Article
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 142, no. 29, page. 12596 - 12601, 2020-07-22
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김기문KIM, KIMOON
Dept of Chemistry
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