Published November 1984
| Version v1
Journal article
Hydrothermal synthesis in the system Na2O-H2O3-B2O3-H2O and crystal structure of sodium holmium borate
- 1. AN Azerbajdzhanskoj SSR, Baku. Inst. Neorganicheskoj i Fizicheskoj Khimii
Description
In the course of hydrothermal synthesis (400 deg C, 120 MPa) in the Na2O-Ho2O3-B2O3-H2O system two crystal ohases: holmium orthoborate+ HoBO3, and a new phase of the NaHO[BO2(OH)2]OH composition are obtained. The X-ray diffraction investigation is perfo med (diffractometer, lambdaMo, 890 reflexes, the least square method in anisotropic approximation up to R=8.3%) of the monocrystal NaHo[BO2(OH)2]OH with cell parameters a=5.142(2); b=6.434(4), c=6.155(3) A, β=114.7(2) deg, V=185.02 A3, Z=2, dsub(calc.)=5.07 g/cm3, sp. gr. P21/m. The structure consists of isolated [BO2(OH)2]-3-tetrahedrons and coordination polyhedrons of metal cations
Additional details
Additional titles
- Original title (Russian)
- Гидротермальный синтез в системе На
Publishing Information
- Journal Title
- Kristallografiya
- Journal Volume
- 29
- Journal Issue
- 6
- Series
- Kristallografiya.
- Journal Page Range
- 1219-1221
- ISSN
- 0023-4761
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 16066962
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- BOND ANGLE; BORON COMPLEXES; CHEMICAL PREPARATION; CRYSTAL LATTICES; DENSITY; HIGH TEMPERATURE; HOLMIUM COMPOUNDS; HYDROXIDES; INTERATOMIC DISTANCES; LATTICE PARAMETERS; MOLECULAR STRUCTURE; MONOCRYSTALS; SODIUM COMPOUNDS; SPACE GROUPS; VERY HIGH PRESSURE
- Descriptors DEC
- ALKALI METAL COMPOUNDS; COMPLEXES; CRYSTAL STRUCTURE; CRYSTALS; DISTANCE; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SYMMETRY GROUPS; SYNTHESIS
Optional Information
- Notes
- For English translation see the journal Soviet Physics - Crystallography (USA).