Published June 1977 | Version v1
Journal article Metadata-only

Polymorphism of perovskite compounds Ba2SEsub(0.67)Wsup(VI)O6. 2

Creators

  • 1. Tuebingen Univ. (Germany, F.R.). Inst. fuer Chemie

Description

In the system Ba2Ndsub(0.67(1-x))Ysub(0.67x)WO6 the formation of a continuous series of mixed crystals with cubic 1:1 ordered perovskite structure is observed. The existence of a hexagonal modification is confined to the Y-rich side (x => 0.9). In the Ba2Ndsub(0.67)Wsub(1-x)Usub(x)O6 series only for x =< 0.25 homogeneous cubic perovskites are obtained. In contrast to systems with other rare earths the Nd series show uncommon optical properties. (author)

Abstract (German)

Im System Ba 2 Nd 0,67(1−x) Y 0,67x WO 6 wird die lückenlose Bildung von Mischkristallen mit kubischer 1:1 geordneter Perowskitstruktur beobachtet. Die Existenz einer hexagonalen Modifikation ist auf die Y‐reiche Seite (x ≥ 0,9) beschränkt. In der Reihe Ba 2 Nd 0,67 W 1−x U x O 6 können einheitliche kubische Perowskite allein für x ⩽ 0,25 erhalten werden. Im Gegensatz zu Systemen mit anderen Seltenen Erden zeichnen sich die Nd‐Reihen durch ungewöhnliche optische Eigenschaften aus.

Additional details

Additional titles

Subtitle (English)
The systems Ba_2Ndsub(0.67(1-x))Ysub(0.67x)WO_6 and Ba_2Ndsub(0.67)Wsub(1-x)Usub(x)O_6
Original title (German)
Ueber die Polymorphie der Perowskite Ba
Original subtitle (German)
Die Systeme Ba_2Ndsub(0,67(1-x))Ysub(0,67x)WO_6 und Ba_2Ndsub(0,67)Wsub(1-x)Usub(x)O_6.

Identifiers

DOI
10.1002/zaac.19774310113;

Publishing Information

Journal Title
Zeitschrift für anorganische und allgemeine Chemie
Journal Volume
431
Journal Issue
1
Series
Z. Anorg. Allg. Chem.
Journal Page Range
134-143
ISSN
0044-2313

INIS

Country of Publication
German Democratic Republic
Country of Input or Organization
German Democratic Republic
INIS RN
8342786
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
BARIUM COMPOUNDS; BINDING ENERGY; CHEMICAL PREPARATION; CRYSTAL STRUCTURE; INFRARED SPECTRA; LATTICE PARAMETERS; NEODYMIUM COMPOUNDS; PEROVSKITE; RAMAN SPECTRA; SOLID SOLUTIONS; TUNGSTEN COMPOUNDS; URANYL COMPOUNDS; YTTRIUM COMPOUNDS
Descriptors DEC
ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CALCIUM OXIDES; CHALCOGENIDES; DISPERSIONS; ENERGY; HOMOGENEOUS MIXTURES; MINERALS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SOLUTIONS; SPECTRA; SYNTHESIS; TITANIUM COMPOUNDS; TITANIUM OXIDES; TRANSITION ELEMENT COMPOUNDS; URANIUM COMPOUNDS

Optional Information

Notes
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