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Issue 1, 2019
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High temperature expulsion of thermolabile groups for pore-space expansion in metal–organic frameworks

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Abstract

Direct radiative heating at 200 °C quantitatively converts sulfoxide-tags to desirable vinyl groups on a porous zinc(II) metal–organic framework analogue of IRMOF-9. The transformation results in an expansion of the pore volume of the framework and a higher surface area. The framework topology and crystallinity are preserved during thermolysis, as established by powder X-ray diffraction, thermal analysis and computational studies. Importantly, the volatile by-product is chemically benign and escapes without damaging the framework. In this way, the post-synthetic thermolysis yields a material with identical properties to that prepared by direct synthesis. This work expands the repertoire of post-synthetic thermochemistry for MOFs and demonstrates that high-temperature processes can be compatible with the retention of important framework properties.

Graphical abstract: High temperature expulsion of thermolabile groups for pore-space expansion in metal–organic frameworks

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Supplementary files

Article information


Submitted
12 Oct 2018
Accepted
08 Nov 2018
First published
09 Nov 2018

CrystEngComm, 2019,21, 60-64
Article type
Paper

High temperature expulsion of thermolabile groups for pore-space expansion in metal–organic frameworks

M. R. Bryant, T. A. Ablott, S. G. Telfer, L. Liu and C. Richardson, CrystEngComm, 2019, 21, 60 DOI: 10.1039/C8CE01740A

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