ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
The hitherto unknown compounds KScO2 (hexagonal; a = 3.216, c = 18.33 Å; Z = 3 formula units per unit cell) and α-RbScO2 (hexagonal; a = 3,250, c = 19.22 Å; Z = 3 formula units), both showing the α-NaFeO2 type of structure, have been obtained. According to powder diagrams, the high temperature form, β-RbScO2, has a new, hitherto unknown type of structure (hexagonal; a = 3.247, c = 12.78 Å; Z = 2 formula units p. u. c.), which may be considered as a stacking variant of the α-NaFeO2 type as well as a „filled“ layer structure of the CdJ2 type.
Notes:
Neu dargestellt wurden die farblosen Verbindungen KScO2 (hexagonal; a = 3,216 Å; c = 18,33 Å; Z = 3 Formeleinheiten) und α-RbScO2 (hexagonal; a = 3,250 Å; c = 19,22 Å; Z = 3 Formeleinheiten), welche beide im α-NaFeO2-Typ kristallisieren. Die Hochtemperaturform, β-RbScO2, zeigt nach Debyeogrammen eine neue, zuvor nicht bekannte Struktur (hexagonal; a = 3,247 Å; c = 12,78 Å; Z = 2 Formeleinheiten), die als Stapelvariante des α-NaFeO2-Typs, aber auch als aufgefüllte Schichtstruktur vom CdJ2-Typ betrachtet werden kann.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19653390305
