Published December 1982 | Version v1
Journal article Metadata-only

On hexagonal perovskites with cationic vacancies. 33

Creators

  • 1. Tuebingen Univ. (Germany, F.R.). Lehrstuhl fuer Anorganische Chemie 2

Description

In the series Ba/sub 6-x/Sr/sub x/Lu/sub 2-y/SE/sub y/3+W3vacantO18 a substitution of Sr2+ for Ba2+ is possible. According to intensity calculations on powder data of BaSr5Lu/sub 1.6/Ho/sub 0.4/W3vacantO18 the compounds crystallize in a rhombohedral 18 L type with the sequence (hhccc)3; space group R-3m. The refined, intensity related R' value is 11.5%. The differences in properties (diffuse reflectance spectra, photoluminescence) between the hexagonal modifications Ba6B/sub 2-y/3+SE/sub y/3+W3vacantO18 (B3+ = Gd, Y, Lu; SE3+ = Sm, Eu, Tb, Dy, Ho, Er, Tm) and the corresponding cubic HT modifications are discussed. (author)

Additional details

Additional titles

Subtitle (English)
Compounds of type Ba/sub 6-x/Sr/sub x/B/sub 2-y/_3"+SE/sub y/_3"+W"3vacantO"1"8
Original title (German)
Ueber hexagonale Perowskite mit Kationenfehlstellen. 33
Original subtitle (German)
Verbindungen vom Typ Ba/sub 6-x/Sr/sub x/B/sub 2-y/_3"+SE/sub y/_3"+W"3vacantO"1"8.

Publishing Information

Journal Title
Z. Anorg. Allg. Chem.
Journal Volume
495
Series
Z. Anorg. Allg. Chem.
Journal Page Range
89-104
ISSN
0044-2313

INIS

Country of Publication
Germany
Country of Input or Organization
German Democratic Republic
INIS RN
14763781
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BARIUM OXIDES; CHEMICAL PREPARATION; DYSPROSIUM OXIDES; ELECTRONIC STRUCTURE; EMISSION SPECTRA; EUROPIUM OXIDES; EXPERIMENTAL DATA; GADOLINIUM OXIDES; HOLMIUM OXIDES; INFRARED SPECTRA; LATTICE PARAMETERS; LUTETIUM OXIDES; ORTHORHOMBIC LATTICES; PHOTOLUMINESCENCE; RAMAN SPECTRA; REFLECTION; SAMARIUM OXIDES; SPACE GROUPS; STRONTIUM OXIDES; STRUCTURAL CHEMICAL ANALYSIS; TERBIUM OXIDES; THULIUM OXIDES; TUNGSTEN OXIDES; VACANCIES; X-RAY DIFFRACTION; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DATA; DIFFRACTION; DYSPROSIUM COMPOUNDS; EUROPIUM COMPOUNDS; GADOLINIUM COMPOUNDS; HOLMIUM COMPOUNDS; INFORMATION; LUMINESCENCE; LUTETIUM COMPOUNDS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; POINT DEFECTS; RARE EARTH COMPOUNDS; SAMARIUM COMPOUNDS; SCATTERING; SPECTRA; STRONTIUM COMPOUNDS; SYMMETRY GROUPS; SYNTHESIS; TERBIUM COMPOUNDS; THULIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS; YTTRIUM COMPOUNDS