Published July 1990 | Version v1
Journal article Metadata-only

Structure of a double phosphate of calcium and europium, Ca9Eu(PO4)7, with the whitlockite structure

Creators

  • 1. Univ. of Bordeaux 1 (France)
  • 2. M. V. Lomonosov State Univ., Moscow (Russian Federation)

Description

By Moessbauer spectroscopy (151Eu) and luminescence (Eu3+) the authors have studied the double orthophosphate of calcium and europium Ca9Eu(PO4)7, which crystallizes in the structural type of the natural mineral whitlockite (Fedorov group R3c). It was established that the europium cations are nonuniformly distributed over three positions in the structure. The authors discuss the influence of these cations on the structure and properties of the variable-composition phases Ca3-xEu2x/3(PO4)2

Additional details

Publishing Information

Journal Title
Soviet Physics - Crystallography (English Translation)
Journal Volume
35
Journal Issue
4
Journal Page Range
p. 491-493.
ISSN
0038-5638
CODEN
SPHCA6

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
24000173
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data, Translation
Descriptors DEI
CALCIUM COMPOUNDS; CRYSTAL STRUCTURE; EMISSION SPECTROSCOPY; EUROPIUM; EUROPIUM COMPOUNDS; EUROPIUM IONS; EUROPIUM PHOSPHATES; EUROPIUM 151; EXPERIMENTAL DATA; LUMINESCENCE; PHASE STUDIES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; DATA; ELEMENTS; EMISSION; EUROPIUM ISOTOPES; INFORMATION; INTERMEDIATE MASS NUCLEI; IONS; ISOTOPES; METALS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; PHOTON EMISSION; RARE EARTH COMPOUNDS; RARE EARTH NUCLEI; RARE EARTHS; SPECTROSCOPY; STABLE ISOTOPES

Optional Information

Notes
(English). Cover-to-cover Translation of Kristallografiya (USSR).