In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 34, No. 6 ( 1979-6-1), p. 777-780
Abstract:
Five new oxidpnictides have been prepared and structurally characterized. They crystallize in the tetragonal system, I4/mmm, with the following constants: Sr 2 Mn 3 As 2 O 2 : a = 416 ± 1 pm, c = 1884 ± 4 pm, c/a = 4.529, Ba 2 Mn 3 As 2 O 2 : a = 424.8 ± 0 5 pm, c = 1977 ± 3 pm, c/a = 4.654, Sr 2 Mn 3 Sb 2 O 2 : a = 426.2 ± 0.4 pm, c = 2011 ± 2 pm, c/a = 4.718, Ba 2 Mn 3 Sb 2 O 2 : a = 436.7 ± 0.5 pm, c = 2078 ± 2 pm, c/a = 4.758, Sr 2 Mn 3 Bi 2 O 2 : a = 428 ± 1 pm, c = 2055 ± 5 pm, c/a = 4.801. Mn- and As(Sb,Bi) atoms form tetragonal pyramids, connected by common edges in the basis to two-dimensional sheets. These sheets are separated by double layers of Sr atoms, in which Mn and O atoms are located forming MnO 4 square plane nets.
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1979-0603
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1979
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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