Published March 1979 | Version v1
Journal article Metadata-only

Crystal structures of R2CoGa8 compounds (R=Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu, Y) and RCoGa5 compounds (R=Gd, Tb, Dy, Ho, Er, Tm, Lu, Y)

Creators

  • 1. L'vovskij Gosudarstvennyj Univ. (Ukrainian SSR)

Description

The crystal structure of Ho2CoGa8 and HoCoGa5 compounds - the representatives of new structural types are determined. Both structures are tetragonal (a=4.217+-0.005; c=10.97+-0.02A; Z=11 for Ho2CoGa8; a=4.207+-0.005; c=6.795+-0.009A; Z=7 for HoCoGa5; P4 mmm space group. Atom parameters are specified by the least square method up to R=0.139 for 122 reflections of Okl,1kl, 2kl (Ho2CoGa8) type and R=0.132 for 83 reflections of Okl, 1kl, 2kl(Ho2CoGa5). Coordination atomic numbers are for Ho - 12, Ga - 11, 12; Co - 8. Structures are described as hybride, the constituted from the fragments of AuCu3 and PtHg2 structural types

Additional details

Additional titles

Original title (Russian)
Кристаллические структуры соединений Р

Publishing Information

Journal Title
Kristallografiya
Journal Volume
24
Journal Issue
2
Series
Kristallografiya.
Journal Page Range
242-246
ISSN
0023-4761

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
10493605
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
COBALT ALLOYS; GALLIUM ALLOYS; HOLMIUM BASE ALLOYS; INTERATOMIC DISTANCES; INTERMETALLIC COMPOUNDS; LATTICE PARAMETERS; TETRAGONAL LATTICES
Descriptors DEC
ALLOYS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DISTANCE; HOLMIUM ALLOYS; RARE EARTH ALLOYS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
For English translation see the journal Soviet Physics - Crystallography (USA).