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Rational Design and Construction of Hierarchical Superstructures Using Shape-Persistent Organic Cages: Porphyrin Box-Based Metallosupramolecular Assemblies

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Title
Rational Design and Construction of Hierarchical Superstructures Using Shape-Persistent Organic Cages: Porphyrin Box-Based Metallosupramolecular Assemblies
Author(s)
Younghoon Kim; Jaehyoung Koo; In-Chul Hwang; Rahul Dev Mukhopadhyay; Soonsang Hong; Jejoong Yoo; Ajaz Ahmad Dar; Ikjin Kim; Dohyun Moon; Tae Joo Shin; Young Ho Ko; Kimoon Kim
Publication Date
2018-11
Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.140, no.44, pp.14547 - 14551
Publisher
AMER CHEMICAL SOC
Abstract
We report a new approach to building hierarchical superstructures using a shape-persistent porous organic cage, which acts as a premade secondary building unit, and coordination chemistry. To illustrate the principle, a zinc-metalated porphyrin box (Zn-PB), a corner-truncated cubic porous cage, was connected by suitable dipyridyl terminated bridging ligands to construct PB-based hierarchical superstructures (PSSs). The PSSs were stabilized not only by the coordination bonds between Zn ions and bipyridyl-terminated ligands but also by ��-�� interactions between the corners of the Zn-PB units. By varying the length of the linker, we identified an optimum range of the linker length for construction of PSSs. The PSSs have large void volumes and an extrinsic surface area compared to the parent PBs, which can be exploited for the selective encapsulation and interior functionalization of the PSSs for various applications, including catalysis. We observed that singlet oxygen induced synthesis of the natural product, juglone, is more efficiently catalyzed by PSS-1 than its constituent component Zn-PB. (c) Copyright 2018 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/5087
DOI
10.1021/jacs.8b08030
ISSN
0002-7863
Appears in Collections:
Center for Self-assembly and Complexity(복잡계 자기조립 연구단) > 1. Journal Papers (저널논문)
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