ISSN:
0044-2313
Keywords:
Ternary cadmium pnictides
;
europium
;
ytterbium
;
crystal structure
;
magnetism
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
AM2X2 Compounds with the CaAl2Si2-Type Structure. XI. Structure and Properties of ACd2X2 (A: Eu, Yb; X: P, As, Sb)EuCd2P2, EuCd2As2, EuCd2Sb2, YbCd2As2, and YbCd2Sb2 were prepared by heating mixtures of the elements and investigated by means of single-crystal X-ray methods. The compounds are isotypic (lattice constants see “Inhaltsübersicht”) and crystallize in the CaAl2Si2-type structure (P3m1; Z = 1). Magnetic measurements showed, that Eu is divalent and that the compounds order magnetically at low temperatures.
Notes:
Durch Erhitzen entsprechender Elementgemenge wurden EuCd2P2 (a = 4,325(1) Å, c = 7,179(1) Å), EuCd2As2 (a = 4,439(1) Å, c = 7,328(1) Å), EuCd2Sb2 (a = 4,698(1) Å, c = 7,723(1) Å), YbCd2As2 (a = 4,388(1) Å, c = 7,149(2) Å) und YbCd2Sb2 (a = 4,650(1) Å, c = 7,565(2) Å) dargestellt und röntgenographisch mit Einkristallmethoden untersucht. Die Verbindungen sind isotyp und kristallisieren im CaAl2Si2-Strukturtyp (P3m1; Z = 1). Eu ist in den betreffenden Verbindungen zweiwertig, die Substanzen ordnen bei tiefen Temperaturen magnetisch.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19966220418
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