Ternäre Varianten des Pyrit-Typs: Darstellung und Struktur von SrPt 4 P 6 , SrPt 4 As 6 , BaPt 4 As 6 und BaPt 2 P 3 / Ternary Pyrite-Type Derivatives: Preparation and Crystal Structure of SrPt 4 P 6 , SrPt 4 As 6 , BaPt 4 As 6 and BaPt 2 P 3
Abstract The isotypic compounds SrPt 4 P 6 , SrPt 4 As 6 and BaPt 4 As 6 were found to crystallize with a Pyrite-type derivative structure (monoclinic, C2/c, Z = 4) in which one Sr or Ba atom per formula unit occupies the position of a P 2 or As 2 pair. BaPt 2 P 3 forms another Pyrite-type related s...
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| Published in | Zeitschrift für Naturforschung. B, A journal of chemical sciences Vol. 42; no. 4; pp. 507 - 513 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
01.04.1987
|
| Online Access | Get full text |
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| Summary: | Abstract
The isotypic compounds SrPt
4
P
6
, SrPt
4
As
6
and BaPt
4
As
6
were found to crystallize with a Pyrite-type derivative structure (monoclinic, C2/c, Z = 4) in which one Sr or Ba atom per formula unit occupies the position of a P
2
or As
2
pair. BaPt
2
P
3
forms another Pyrite-type related structure (monoclinic, P2
1
/c, Z = 4) built up by Ba
2
Pt and Pt
3
P
6
layers. All crystal structures were refined from four-circle diffractometer data, the lattice constants are:
SrPt
4
P
6
: a = 825.2(1) pm, b = 798.4(1) pm, c = 1142.8(1) pm, β = 90.74(2)°;
SrPt
4
As
6
: a = 858.2(1) pm, b = 832.1(1) pm, c = 1194.5(1) pm, β = 91.00(2)°;
BaPt
4
As
6
: a = 868.8(1) pm, b = 833.3(1) pm, c = 1197.1(1) pm, β = 90.81(2)°;
BaPt
2
P
3
a = 835.2(1) pm, b = 577.6(1) pm, c = 1157.4(1) pm, β = 106.73(2)°. |
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| ISSN: | 0932-0776 1865-7117 |
| DOI: | 10.1515/znb-1987-0419 |