Evolution of form in metal–organic frameworks

Jiyoung Lee, Ja Hun Kwak () and Wonyoung Choe ()
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Jiyoung Lee: Ulsan National Institute of Science and Technology
Ja Hun Kwak: Ulsan National Institute of Science and Technology
Wonyoung Choe: Ulsan National Institute of Science and Technology

Nature Communications, 2017, vol. 8, issue 1, 1-8

Abstract: Abstract Self-assembly has proven to be a widely successful synthetic strategy for functional materials, especially for metal–organic materials (MOMs), an emerging class of porous materials consisting of metal–organic frameworks (MOFs) and metal–organic polyhedra (MOPs). However, there are areas in MOM synthesis in which such self-assembly has not been fully utilized, such as controlling the interior of MOM crystals. Here we demonstrate sequential self-assembly strategy for synthesizing various forms of MOM crystals, including double-shell hollow MOMs, based on single-crystal to single-crystal transformation from MOP to MOF. Moreover, this synthetic strategy also yields other forms, such as solid, core-shell, double and triple matryoshka, and single-shell hollow MOMs, thereby exhibiting form evolution in MOMs. We anticipate that this synthetic approach might open up a new direction for the development of diverse forms in MOMs, with highly advanced areas such as sequential drug delivery/release and heterogeneous cascade catalysis targeted in the foreseeable future.

Date: 2017
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DOI: 10.1038/ncomms14070

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