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Synthesis and Crystal Structure of NdCaGaO 4
Author(s) -
Vasylechko L.,
Akselrud L.,
Savytskii D.,
Syvorotka I.,
Matkovskii A.,
Matkovskii A.
Publication year - 1998
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/(sici)1521-4079(1998)33:5<841::aid-crat841>3.0.co;2-x
Subject(s) - diffractometer , crystal structure , crystallography , coordination number , chemistry , space group , x ray crystallography , ion , physics , diffraction , optics , organic chemistry
The crystal structure of the NdCaGaO 4 compound was investigated by means of X‐ray structure analysis (powder diffractometer HZG‐4, CuK α ): structure type LaCuO 4 , space group Cmca, a = 5.3700(2) Å, b = 12.1058(3) Å, c = 5.3937(2) Å, Z = 4, R I = 0.126. The shortest interatomic distances are: Nd(Ca)—O — 2.240(14) Å; Ga—O — 1.913(2) Å, O—O — 2.6852(2) Å, Nd(Ca)—Nd(Ca) — 3.442(3) Å, Nd(Ca)—Ga — 3.154(4) Å, Ga—Ga — 3.8056(2) Å. Atoms have the following coordination numbers: Nd(Ca) — 8; Ga — 6; O1 — 14(6); O2 — 9(5).