Published 1986
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Neutron diffraction refinement of hydrogen position in CsHSO4 crystal at room temperature
- 1. Joint Inst. for Nuclear Research, Dubna (USSR). Lab. of Neutron Physics
- 2. Moskovskij Khimiko-Tekhnologicheskij Inst. (USSR)
Description
The refinement of hydrogen position in CsHSO4 crystal has been performed on the basis of neutron diffraction data. It is shown that the protons binding the SO4 tetrahedra in a chain along the b-vector axis are shifted antiparallely in the neighbouring chains. As a consequence, the lattice periodicity (compared with heavy atom periodicity) increases twice along c-vector. The crystallographic data on CsHSO4 at room temperature are the following: the space group is P21/c, a=8.223 (4) A, b=5.814 (3) A, c=10.99 (1) A, β=119.4 (1) deg, Z=4. The birth of an antiferroelectric phase in CsH2PO4 for P=3.3 kbar, T <or approx. -149 deg C suggests the possibility of appearence of this phase in CsHSO4 already at room temperature
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Additional details
Additional titles
- Original title (Russian)
- Нейтронографическое уточнение структуры CsHSO
Publishing Information
- Imprint Pagination
- 6 p.
- Report number
- JINR-R--14-86-555
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 18054948
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CESIUM SULFATES; CHEMICAL BONDS; CRYSTAL-PHASE TRANSFORMATIONS; LATTICE PARAMETERS; MEDIUM TEMPERATURE; MONOCLINIC LATTICES; NEUTRON DIFFRACTION; SPACE GROUPS; SULFURIC ACID; TWINNING
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CESIUM COMPOUNDS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SCATTERING; SULFATES; SULFUR COMPOUNDS; SYMMETRY GROUPS
Optional Information
- Notes
- 18 refs.; 4 figs.; 1 tab.