ISSN:
0044-2313
Keywords:
Calcium
;
lanthanum
;
aluminium
;
gallium
;
oxide
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
On the Crystal Structure of CaLaAl3O7 and CaLaGa3-xAlxO7 (x = 0.66)Single crystals of (I): CaLaAl3O7 and (II): CaLaGa2.34Al0.66O7 were grown from molten oxide mixtures and investigated by single crystal X-ray technique. Both compounds crystallize with tetragonal symmetry, space group D2d3—P421m, (I): a = 7.8075; c = 5.1564 Å, (II): a = 7.9130, c = 5.2360 Å, Z = 2 and are isostructural with the Melilites. The crystal structure is discussed.
Notes:
Einkristalle von (I): CaLaAl3O7 und (II): CaLaGa2,34Al0,66O7 wurden aus Schmelzen der Oxidgemenge dargestellt und mit röntgenographischen Methoden untersucht. Beide Oxide kristallisieren tetragonal in der Raumgruppe D2d3—P421m mit (I): a = 7,8075; c = 5,1564 Å, (II): a = 7,9130, c = 5,2360 Å, Z = 2 und sind isotyp mit den Meliliten. Die Kristallstruktur wird diskutiert.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19936190514
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