Published August 15, 1990
| Version v1
Journal article
Room-temperature structure of La2O2S2
Creators
- 1. Centre National de la Recherche Scientifique, 92 - Meudon-Bellevue (France). Lab. de Magnetisme et d'Optique des Solides
- 2. Le Mans Univ., 72 (France). Lab. des Fluorures
Description
Lanthanum oxide sulfide La2O2S2, Mr=373.947, orthorhombic, Cmca, a=13.215 (2), b=5.943 (1), c=5.938 (1) A, V=466.3 (2) A3, Z=4, Dx=5.32 Mg m-3, Mo Kα, λ=0.71069 A, μ=18.87 mm-1, F(000)=648, R=0.017, 582 unique observed reflections, flux growth, data corrected for twinning of the crystal. The structure is built from infinitive layers of LaO4S4 square antiprisms connected by edges; these layers share either oxygen or disulfide common planes. Short S-S distances [d=2.103 (2) A] correspond to S22- entities. (orig.)
Additional details
Publishing Information
- Journal Title
- Acta Crystallographica. Section C: Crystal Structure Communications
- Journal Volume
- 46
- Journal Issue
- 8
- Series
- Acta Crystallogr., Sect. C Cryst. Struct. Comm.
- Journal Page Range
- 1376-1378
- ISSN
- 0108-2701
- CODEN
- ACSCE
INIS
- Country of Publication
- Denmark
- Country of Input or Organization
- Denmark
- INIS RN
- 22005880
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BOND LENGTHS; CRYSTAL STRUCTURE; EXPERIMENTAL DATA; LANTHANUM SULFIDES; LATTICE PARAMETERS; ORTHORHOMBIC LATTICES; OXYSULFIDES; X-RAY DIFFRACTION
- Descriptors DEC
- CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; DATA; DIFFRACTION; INFORMATION; LANTHANUM COMPOUNDS; NUMERICAL DATA; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; SULFIDES; SULFUR COMPOUNDS