In:
Zeitschrift für Kristallographie - Crystalline Materials, Walter de Gruyter GmbH, Vol. 232, No. 7-9 ( 2017-7-26), p. 593-599
Abstract:
The title compound with the nominal formula, Sr 13 Eu 8 Cd 3 Mn 1 Sb 18 , was synthesized by Sn-flux. Structure refinement was based on single-crystal X-ray diffractometer data. Employing the exact composition, the formula is Sr 13.23 Eu 7.77 Cd 3.12 Mn 0.88 Sb 18 for the solid solution Sr 21-x Eu x Cd 4-y Mn y Sb 18 . This phase adopts the Sr 21 Mn 4 Sb 18 type structure with site preferences for both Eu and Cd. The structure crystallizes in the monoclinic system in space group C 2/ m and Z =4: a =18.1522(11), b =17.3096(10), c =17.7691(10) Å, β=91.9638(8)°, 6632 F 2 values, 216 variables, R1=0.0254 and wR2=0.0563. Site selectivity of the elements in this new compound will be discussed in relationship with the Sr 21 Mn 4 Sb 18 type structure and other related structure types. Temperature dependent magnetic susceptibility data reveal Curie–Weiss paramagnetism with an experimental moment of 19.3 μ B /f.u. and a Weiss constant of 0.4 K. Magnetic ordering is seen at low temperatures, with a transition temperature of 3.5 K.
Type of Medium:
Online Resource
ISSN:
2196-7105
,
2194-4946
DOI:
10.1515/zkri-2016-2034
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2017
SSG:
13
Permalink