YTTERBIUM CALCIUM POTASSIUM SULFIDE, CAK0 .5YB1.833S4

Authors
ELFADLI Z LEMOINE P TOMAS A GUITTARD M
Citation
Z. Elfadli et al., YTTERBIUM CALCIUM POTASSIUM SULFIDE, CAK0 .5YB1.833S4, Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 1373-1375
Citations number
10
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
50
Year of publication
1994
Part
9
Pages
1373 - 1375
Database
ISI
SICI code
0108-2701(1994)50:<1373:YCPSC.>2.0.ZU;2-#
Abstract
The Yb and Ca atoms have slightly distorted octahedral environments an d the K atom has regular sixfold prismatic coordination. The sites are completely (Yb, Ca) or partially (Yb, K) occupied. The compound cryst allizes with a layer structure; each layer is made up of [CaS6] or [Yb S6] octahedra and is perpendicular to the c axis. Groups made up of th ree layers, [Yb(1)S6], [CaS6] and [Yb(2)S6], are held together by K at oms.