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Phase Transitions in Zeolitic Imidazolate Framework 7: The Importance of Framework Flexibility and Guest-Induced Instability

DOI: 10.1021/cm500407f DOI Help

Authors: Pu Zhao (Department of Earth Sciences, University of Cambridge) , Giulio I. Lampronti (Department of Earth Sciences, University of Cambridge) , Gareth O. Lloyd (Department of Chemistry, University of Cambridge) , Michael Wharmby (Diamond Light Source) , Sébastien Facq (Department of Earth Sciences, University of Cambridge) , Anthony K. Cheetham (Department of Materials Science and Metallurgy, University of Cambridge) , Simon Redfern (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemistry of Materials , VOL 26 (5) , PAGES 1767 - 1769

State: Published (Approved)
Published: March 2014
Diamond Proposal Number(s): 8361

Open Access Open Access

Abstract: Zeolite-related materials exhibit a range of novel properties and are of considerable interest for their potential engineering applications. Zeolitic imidazolate frameworks (ZIFs) display zeolite-type structures and are constructed by transitional metals and imidazole molecules. 1 With a wide variety of potential organic ligands, ZIFs present a new family of possible zeolite-related structures with tunable and functionalizable properties. Because of the coordinative metal- imidazolate bonding forming their frameworks, ZIFs are commonly more fl exible than their aluminosilicate analogues. They also show unusual gas sorption capacity and related properties. Due to their framework flexibility, ZIFs can undergo structural transformations, e.g., during the sorption process 2 or under high temperature 3 or pressure. 4 It is of great significance to understand potential structural phase transitions since they strongly a ff ect ZIFs ’ structurally-related sorption and mechanical properties, which are essential to ZIFs-based technology innovations and industrial applications.

Subject Areas: Chemistry, Materials

Instruments: I11-High Resolution Powder Diffraction

Added On: 30/10/2014 12:51

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