Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Nov 18;58(47):16850-16853.
doi: 10.1002/anie.201910161. Epub 2019 Oct 25.

Fuel-Driven Transient Crystallization of a Cucurbit[8]uril-Based Host-Guest Complex

Seoyeon Choi  1 , Rahul Dev Mukhopadhyay  2 , Younghoon Kim  3 , In-Chul Hwang  2 , Wooseup Hwang  3 , Suman Kr Ghosh  2 , Kangkyun Baek  2 , Kimoon Kim  2   1   3
Affiliations

Fuel-Driven Transient Crystallization of a Cucurbit[8]uril-Based Host-Guest Complex

Seoyeon Choi et al. Angew Chem Int Ed Engl. .

Abstract

Transient self-assembling systems often suffer from accumulation of chemical wastes that interfere with the formation of pristine self-assembled products in subsequent cycles. Herein, we report the transient crystallization of a cucurbit[8]uril-based host-guest complex, preventing the accumulation of chemical wastes. Base-catalyzed thermal decarboxylation of trichloroacetic acid that chemically fuels the crystallization process dissolves the crystals, and produces volatile chemical wastes that are spontaneously removed from the solution. With such self-clearance process, no significant damping in the formation of the crystals was observed. The morphology and structural integrity of the crystals was also maintained in subsequent cycles. The concept may be further extended to obtain other temporally functional materials, quasicrystals, etc., based on stimuli-responsive guest molecules.

Keywords: dissipative self-assembly; host-guest systems; non-equilibrium processes; supramolecular chemistry; transient crystallization.

PubMed Disclaimer

References

    1. None
    1. G. Ashkenasy, T. M. Hermans, S. Otto, A. F. Taylor, Chem. Soc. Rev. 2017, 46, 2543-2554;
    1. C. Pezzato, C. Cheng, J. F. Stoddart, R. D. Astumian, Chem. Soc. Rev. 2017, 46, 5491-5507;
    1. S. A. P. van Rossum, M. Tena-Solsona, J. H. van Esch, R. Eelkema, J. Boekhoven, Chem. Soc. Rev. 2017, 46, 5519-5535;
    1. R. F. Ludlow, S. Otto, Chem. Soc. Rev. 2008, 37, 101-108;

LinkOut - more resources