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2000 | 97 | 4 | 663-670
Article title

Structural Study of (NH_{4})_{4}H_{2}(SeO_{4})_{3} in the Low-Temperature Phase

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Content
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Languages of publication
EN
Abstracts
EN
The crystal structure of tetraammonium dihydrogen triselenate, (NH_{4})_{4}H_{2}(SeO_{4})_{3}, in the low-temperature phase at 141 K is studied by X-ray diffraction. The space group symmetry (triclinic P1) and the structure parameters are determined. By the shift of the Se atom from the center of the SeO_{4} tetrahedron, it is suggested that the (NH_{4})_{4}H_{2} (SeO_{4})_{3} crystal in the low-temperature phase is ferroelectric with the electric dipole moment along the c-axis. The rotation of the SeO_{4} tetrahedron suggested by electron paramagnetic resonance measurements is discussed.
Keywords
EN
Year
Volume
97
Issue
4
Pages
663-670
Physical description
Dates
published
2000-04
received
1999-10-07
(unknown)
1999-12-21
References
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv97z405kz
Identifiers
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