Formation of new crystalline polymorph from amorphous ZIF-8

The structure of a new ZIF-8 polymorph with quartz topology (qtz) is reported. This qtz-[Zn(mIm) 2 ] phase was obtained by mechanically amorphising crystalline ZIF-8, before heating the resultant amorphous phase to between 282 and 316 °C. The high-temperature phase structure was obtained from powder...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2022-10, Vol.58 (85), p.11949-11952
Hauptverfasser:	Thorne, Michael F, Castillo-Blas, Celia, McHugh, Lauren N, Bumstead, Alice M, Robertson, Georgina, Sapnik, Adam F, Coates, Chloe S, Sayed, Farheen N, Grey, Clare P, Keen, David A, Etter, Martin, da Silva, Ivan, U arevi, Krunoslav, Bennett, Thomas D
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Zusammenfassung:	The structure of a new ZIF-8 polymorph with quartz topology (qtz) is reported. This qtz-[Zn(mIm) 2 ] phase was obtained by mechanically amorphising crystalline ZIF-8, before heating the resultant amorphous phase to between 282 and 316 °C. The high-temperature phase structure was obtained from powder X-ray diffraction, and its thermal behaviour, CO 2 gas sorption properties and dye adsorption ability were investigated. Formation of a new crystalline qtz-[Zn(mIm) 2 ] polymorph from amorphous ZIF-8.
ISSN:	1359-7345 1364-548X
DOI:	10.1039/d2cc04241j