Published June 2006 | Version v1
Journal article Metadata-only

Distribution of cations and interatomic interactions in oxides with heterovalent isomorphism. XI. Solid solutions (La1-xHox)2SrAl2O7

Creators

  • 1. Sankt-Peterburgskij Gosudarstvennyj Univ., Sankt-Peterburg (Russian Federation)
  • 2. Univ. Kana, Cannes (France)

Description

Results of crystallochemical investigations into solid solutions prepared by isomorphic isovalent substitution in the La2SrAl2O7-Ho2SrAl2O7 system are demonstrated. Interatomic distances and distribution of rare earth and strontium cations by two positions in the structure of solid solutions (La1-xHox)2SrAl2O7 were analyzed by full-profile X-ray structural analysis. Interaction of holmium cations in the La2SrAl2O7 oxide leads to the regulated distribution of La3+ cations and stabilization of perovskite-like layer structure

Abstract (Russian)

Представлены результаты кристаллохимического исследования твердых растворов, полученных путем изоморфного изовалентного замещения в системе La2SrAl2O7-Ho2SrAl2O7. Методом полнопрофильного рентгеноструктурного анализа определены межатомные расстояния и распределение катионов редкоземельных элементов и стронция по двум позициям в структуре твердых растворов (La1-xHox)2SrAl2O7. Введение катионов гольмия в оксид La2SrAl2O7 приводит к упорядоченному распределению катионов La3+ и стабилизации перовскитоподобной слоистой структуры

Additional details

Additional titles

Original title (Russian)
Распределение катионов и межатомные взаимодействия в оксидах с гетеровалентным изоморфизмом. XI. Твердые растворы (Ла

Publishing Information

Journal Title
Zhurnal Obshchej Khimii
Journal Volume
76
Journal Issue
6
Journal Page Range
p. 915-920
ISSN
0044-460X
CODEN
ZOKHA4

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37104086
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALUMINIUM OXIDES; CHEMICAL COMPOSITION; CUBIC LATTICES; HOLMIUM OXIDES; INTERATOMIC DISTANCES; LANTHANUM OXIDES; MOLECULAR STRUCTURE; SOLID SOLUTIONS; STRONTIUM OXIDES; X-RAY DIFFRACTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; DISPERSIONS; DISTANCE; HOLMIUM COMPOUNDS; HOMOGENEOUS MIXTURES; LANTHANUM COMPOUNDS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; SOLUTIONS; STRONTIUM COMPOUNDS

Optional Information

Notes
10 refs., 5 figs., 3 tabs.