SOLID-SOLUTIONS BETWEEN LAN AND CA3N2 - DEFECT ROCK-SALT NITRIDES LA1-XCAXN1-X 3/

Authors
CLARKE SJ DISALVO FJ
Citation
Sj. Clarke et Fj. Disalvo, SOLID-SOLUTIONS BETWEEN LAN AND CA3N2 - DEFECT ROCK-SALT NITRIDES LA1-XCAXN1-X 3/, Journal of solid state chemistry, 129(1), 1997, pp. 144-146
Citations number
8
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
129
Issue
1
Year of publication
1997
Pages
144 - 146
Database
ISI
SICI code
0022-4596(1997)129:1<144:SBLAC->2.0.ZU;2-Y
Abstract
La1-xCaxN1-x/3 (0<x<0.7) has been prepared by reacting LaN with Ca3N2 at temperatures between 1200 and 1300 degrees C. All the phases have t he LaN-like rock-salt structure with no evidence for ordering between La and Ca or of the x/3 N vacancies. The lattice parameters of materia ls with different compositions lie between those of the isostructural LaN and CaNH according to Vegard law. Ca adopts octahedral coordinatio n in the title compound, in contrast to its tetrahedral coordination g eometry in Ca3N2. The materials are poorly conducting. (C) 1997 Academ ic Press.