SYNTHESIS AND CRYSTAL-STRUCTURE OF NDCAGAO4

Authors
VASYLECHKO L AKSELRUD L SAVYTSKII D SYVOROTKA I MATKOVSKII A
Citation
L. Vasylechko et al., SYNTHESIS AND CRYSTAL-STRUCTURE OF NDCAGAO4, Crystal research and technology, 33(5), 1998, pp. 841-846
Citations number
8
Categorie Soggetti
Crystallography
Journal title
Crystal research and technology → ACNP
ISSN journal
02321300
Volume
33
Issue
5
Year of publication
1998
Pages
841 - 846
Database
ISI
SICI code
0232-1300(1998)33:5<841:SACON>2.0.ZU;2-6
Abstract
The crystal structure of the NdCaGaO4 compound was investigated by mea ns of X-rag structure analysis (powder diffractometer HZG-4, CuKalpha) : structure type LaCuO4, space group Cmca, a = 5.3700(2) Angstrom, b = 12.1058(3) Angstrom, c = 5.3937(2) Angstrom, Z = 4, R-I = 0.126. The shortest interatomic distances are: Nd(Ca)-O - 2.240(14) Angstrom; Ga- O - 1.913(2) Angstrom, O-O - 2.6852(2) Angstrom, Nd(Ca)-Nd(Ca) - 3.442 (3) Angstrom, Nd(Ca)-Ga - 3.154(4) Angstrom, Ga-Ga - 3.8056(2) Angstro m. Atoms have the following coordination numbers: Nd(Ca) - 8; Ga - 6; O1 - 14(6); O2 - 9(5).