Goodwin, A. L. and Kennedy, B. J. and Kepert, C. J. (2009) Thermal Expansion Matching via Framework Flexibility in Zinc Dicyanometallates. Journal of the American Chemical Society, 131 (18). pp. 6334-6335. ISSN 0002-7863 Web Edition ISSN: 1520-5126 DOI https://doi.org/10.1021/ja901355b
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Abstract
The thermal expansion properties of two isostructural zinc dicyanometallates that crystallize with and without the inclusion of a weakly interacting secondary crystalline phase have been investigated using variable temperature single-crystal and powder X-ray diffraction. The guest-free Zn[Au(CN)2]2 framework was found to show very strong anisotropic positive and negative thermal expansion. In contrast, its cocrystal analogue Zn[Ag(CN)2]2·xAgCN exhibited much more moderate behavior, such that the coefficient of thermal expansion for the host Zn[M(CN)2]2 framework now matched that of crystalline AgCN. It was proposed that this correlation points to a more general ability of highly flexible framework materials to “match” the thermal expansivity of adhered phases (e.g., substrates, sorbates, or cocrystallized species), suggesting a methodology of eliminating thermal strain in multicomponent assemblies.
Item Type: | Article |
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Uncontrolled Keywords: | 08AREP; IA57; |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences |
Journal or Publication Title: | Journal of the American Chemical Society |
Volume: | 131 |
Page Range: | pp. 6334-6335 |
Identification Number: | https://doi.org/10.1021/ja901355b |
Depositing User: | Sarah Humbert |
Date Deposited: | 21 May 2009 09:32 |
Last Modified: | 23 Jul 2013 09:54 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/1000 |
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