Y7I6C3O - A CARBIDE OXIDE WITH CONDENSED Y6C OCTAHEDRA AND Y4O TETRAHEDRA

Authors
MATTAUSCH H BORRMANN H SIMON A
Citation
H. Mattausch et al., Y7I6C3O - A CARBIDE OXIDE WITH CONDENSED Y6C OCTAHEDRA AND Y4O TETRAHEDRA, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 48(12), 1993, pp. 1828-1830
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur Naturforschung. B, A journal of chemical sciences → ACNP
ISSN journal
09320776
Volume
48
Issue
12
Year of publication
1993
Pages
1828 - 1830
Database
ISI
SICI code
0932-0776(1993)48:12<1828:Y-ACOW>2.0.ZU;2-V
Abstract
The new compound Y7I6C3O is prepared by reaction of stoichiometric amo unts of Y, YI3, Y2O3 and C in closed Ta capsules at 1370 K. Y7I6C3O fo rms bronze coloured, metallic, air and moisture sensitive crystals. It crystallizes in the space group P mma (No.51) with the lattice consta nts a = 2249.4(4), b = 383.7(1), c = 1079.1(1) pm. Within the crystal structure the C atoms and the O atoms are surrounded by Y atoms octahe drally and tetrahedrally, respectively. The Y6C octahedra and Y4O tetr ahedra are condensed to form ondulated layers, which are separated by double layers of I atoms.