Nalini, G. ; Guru Row, T. N. (2003) Phase transitions in A4Li(HSO4)3(SO4); A = Rb, K: single crystal X-ray diffraction studies Proceedings of the Indian Academy of Sciences - Chemical Sciences, 115 (5-6). pp. 473-490. ISSN 0253-4134
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Official URL: http://www.ias.ac.in/chemsci/Pdf-OctDec2003/Pc3334...
Related URL: http://dx.doi.org/10.1007/BF02708239
Abstract
The crystal structure of ferroelastic Rb4Li(HSO4)3(SO4) has been determined at two temperatures, which indicates a structural phase transition, tetragonal P43 with a = 7.629(1) Å,c = 29.497(2) Å at 293 K and monoclinic P21 witha = 7.583(3) Å,b = 29.230(19) Å,c = 7.536(5) Å,β = 90.14(1)° at 90 K. The crystal structure of K4Li(HSO4)3(SO4)4 has also been determined at two temperatures, tetragonalP41 witha = 7.405(1) Å,c = 28.712(6) Å at 293 K and tetragonalP41 with a = 7.371(5) Å,c = 28.522(5) Å at 100 K. The overall coordination features in both the structures have been analysed in terms of bond valence sum calculations.
Item Type: | Article |
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Source: | Copyright of this article belongs to Indian Academy of Sciences. |
Keywords: | Phase Transition; Ferroelastic; Cryo-Crystallography; Crystal Structure |
ID Code: | 11915 |
Deposited On: | 13 Nov 2010 13:34 |
Last Modified: | 16 May 2016 21:19 |
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