Published July 3, 1991
| Version v1
Miscellaneous
Synthesis and roentgenographic analysis of selenides and selenide silicates of the lanthanide group
Description
Single crystals were prepared by way of chemical transport, of the compounds LaSe1.9, GdSe1.875, DySe 1.875, and HoSe1.875. Their chemical structure was analysed by a complete crystal structure analysis by means of the Guinier and the precession method, by four-cycle diffraction analysis, and by anisotropic structural refinement. Furthermore, monocrystals or powders were synthetized of lanthanide selenide orthosilicates present as the compounds Ln2 Se SiO4 (Ln = La, Ce, Pr, Nd, Sm, Dy, Ho), and Ln2 Se3 Si2 O7 (Ln = Ce, Pr, Nd, Sm, Gd). Their space groups and their lattice constants were determined. (KW)
Availability note (English)
Available from TIB Hannover: DB 4251.Abstract (German)
Einkristalle der Verbindungen LaSe1.9, GdSe1.875, DySe1.875 und HoSe1.875 wurden ueber chemischen Transport hergestellt und die chemische Struktur mit Hilfe einer vollstaendigen Kristallstrukturanalyse (Guinier- und Praezessionsmethode, Vierkreisdiffraktometermessung und anisotrope Strukturverfeinerung) aufgeklaert. Weiterhin wurden die Lanthanidseltenidorthosilikate der Zusammensetzung Ln2 Se SiO4 (Ln = La, Ce, Pr, Nd, Sm, Dy, Ho und Ln2 Se3 Si2O7 (Ln = Ce, Pr, Nd, Sm, Gd) als Einkristalle oder Pulver synthetisiert und die Raumgruppen sowie Gitterkonstanten bestimmt. (KW)Additional details
Additional titles
- Original title (German)
- Synthese und roentgenographische Untersuchungen von Seleniden und Selenidsilicaten der Lanthanide
Publishing Information
- Imprint Pagination
- 246 p.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 23018467
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data, Thesis, Non-conventional Literature
- Descriptors DEI
- CERIUM SELENIDES; CHEMICAL PREPARATION; DYSPROSIUM SELENIDES; EXPERIMENTAL DATA; GADOLINIUM SELENIDES; HOLMIUM SELENIDES; LANTHANUM SELENIDES; LATTICE PARAMETERS; MONOCRYSTALS; NEODYMIUM COMPOUNDS; POLYCRYSTALS; PRASEODYMIUM SELENIDES; SAMARIUM SELENIDES; SELENIDES; SILICATES; SPACE GROUPS; STRUCTURAL CHEMICAL ANALYSIS; X-RAY DIFFRACTION
- Descriptors DEC
- CERIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTALS; DATA; DIFFRACTION; DYSPROSIUM COMPOUNDS; GADOLINIUM COMPOUNDS; HOLMIUM COMPOUNDS; INFORMATION; LANTHANUM COMPOUNDS; NUMERICAL DATA; OXYGEN COMPOUNDS; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; SAMARIUM COMPOUNDS; SCATTERING; SELENIUM COMPOUNDS; SILICON COMPOUNDS; SYMMETRY GROUPS; SYNTHESIS