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Issue 52, 2017
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Amorphous–amorphous transition in a porous coordination polymer

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Abstract

The amorphous state plays a key role in porous coordination polymer and metal–organic framework phase transitions. We investigate a crystalline-to-amorphous-to-amorphous-to-crystalline (CAAC) phase transition in a Zn based coordination polymer, by X-ray absorption fine structure (XAFS) and X-ray pair distribution function (PDF) analysis. We show that the system shows two distinct amorphous phases upon heating. The first involves a reversible transition to a desolvated form of the original network, followed by an irreversible transition to an intermediate phase which has elongated Zn–I bonds.

Graphical abstract: Amorphous–amorphous transition in a porous coordination polymer

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Supplementary files

Article information


Submitted
29 Apr 2017
Accepted
08 Jun 2017
First published
08 Jun 2017

Chem. Commun., 2017,53, 7060-7063
Article type
Communication

Amorphous–amorphous transition in a porous coordination polymer

H. Ohtsu, T. D. Bennett, T. Kojima, D. A. Keen, Y. Niwa and M. Kawano, Chem. Commun., 2017, 53, 7060
DOI: 10.1039/C7CC03333H

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