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Issue 11, 2016
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Water-triggered macroscopic structural transformation of a metal–organic framework

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Abstract

A millimeter-long metal–organic framework fiber has been successfully constructed. The fiber structure was unexpectedly found via the solvent vaporization process of a dispersion of a Zn-based MOF crystal. Detailed experiments and structural analysis indicate that a humid environment is a key to the growth of the fiber structure, inducing drastic transformation of the MOF crystal morphology from the nanoscopic to macroscopic scale. Synchrotron X-ray single-crystal diffraction analysis reveals that the complete crystal transformation from the Zn-MOF sheet to Zn-MOF fiber is accompanied by water coordination and ligand rearrangement. The highly anisotropic MOF fiber is easily converted to an electro-conductive fiber while maintaining the long-fiber morphology.

Graphical abstract: Water-triggered macroscopic structural transformation of a metal–organic framework

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Supplementary files

Article information


Submitted
06 Jan 2016
Accepted
15 Feb 2016
First published
15 Feb 2016

CrystEngComm, 2016,18, 1866-1870
Article type
Communication

Water-triggered macroscopic structural transformation of a metal–organic framework

M. Ohtani, K. Takase, P. Wang, K. Higashi, K. Ueno, N. Yasuda, K. Sugimoto, M. Furuta and K. Kobiro, CrystEngComm, 2016, 18, 1866
DOI: 10.1039/C6CE00031B

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