Roberts, M.A., Fitch, A.N., Chadwick, Alan V. (1995) The crystal-structures of (NH4)(3)HGE7016-center-dot-NH(2)O and Li4-xhxge7016-center-dot-NH(2)0 determined from powder diffraction data using synchrotron-radiation. Journal of Physics and Chemistry of Solids, 56 (10). pp. 1353-1358. ISSN 0022-3697. (doi:10.1016/0022-3697(95)00069-0) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:18995)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: http://dx.doi.org/10.1016/0022-3697(95)00069-0 |
Abstract
The structures of two hydrated microporous germanates (NH4)(3)HGe7O16. nH(2)O and Li4-xHxGe7O16. nH(2)O [n = 2.72(3) and 5.61(5), respectively], have been determined in space group P(4) over bar3$ m, Z = 1, with a = 7.71069(1) Angstrom and 7.71936(1) Angstrom respectively, from Rietveld refinement of powder diffraction patterns collected using synchrotron radiation. The profiles contain 119 and 104 reflections, respectively. The structure of these germanates consists of a three-dimensional framework with charge compensating cations and water molecules occupying the interconnecting channels. The ammonium cations occupy sites near the centre of a 3.3 Angstrom window and form a disordered hydrogen-bonded network with the water molecules. This is presumably responsible for the ionic conductivity observed in this material.
Item Type: | Article |
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DOI/Identification number: | 10.1016/0022-3697(95)00069-0 |
Uncontrolled keywords: | MICROPOROUS MATERIALS; X-RAY DIFFRACTION; CRYSTAL STRUCTURE |
Subjects: | Q Science |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | I.T. Ekpo |
Date Deposited: | 08 Jun 2009 20:51 UTC |
Last Modified: | 16 Nov 2021 09:57 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/18995 (The current URI for this page, for reference purposes) |
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