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Shin, Tae Joo
UNIST Central Research Facilities (UCRF)
Research Interests
  • Synchrotron Radiation Application Researches

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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
Kim, YounghoonKoo, JaehyoungHwang, In-ChulMukhopadhyay, Rahul DevHong, SoonsangYoo, JejoongDar, Ajaz AhmadKim, IkjinMoon, DohyunShin, Tae JooKo, Young HoKim, Kimoon
Issue Date
2018-11
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.140, no.44, pp.14547 - 14551
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 pi-pi 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.
URI
https://scholarworks.unist.ac.kr/handle/201301/25440
URL
https://pubs.acs.org/doi/10.1021/jacs.8b08030
DOI
10.1021/jacs.8b08030
ISSN
0002-7863
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