Neutron diffraction study of the atomic structure of the ferroelectric phase of (CH3)(2)NH2Al(SO4)(2).6H(2)O ferroelectric-ferroelastic (DMAAS)

Authors
Kazimirov, VY Sarin, VA Ritter, C Shuvalov, LA
Citation
Vy. Kazimirov et al., Neutron diffraction study of the atomic structure of the ferroelectric phase of (CH3)(2)NH2Al(SO4)(2).6H(2)O ferroelectric-ferroelastic (DMAAS), CRYSTALLO R, 44(1), 1999, pp. 56-61
Citations number
10
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
44
Issue
1
Year of publication
1999
Pages
56 - 61
Database
ISI
SICI code
1063-7745(199901/02)44:1<56:NDSOTA>2.0.ZU;2-6
Abstract
The ferroelastic phase of a DMAAS single crystal is studied by the neutron diffraction method on a four-circle automatic diffractometer (lambda = 0.84 57 Angstrom) at the Laue-Langevin Institute, Grenoble, France. The crystal structure of the ferroelastic phase is refined up to R = 2.54%, It is estab lished that the ferroelastic phase is characterized by the partial disorder of dimethyl ammonium cation over the positions of amine and methyl groups.