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Synthesis and Crystal Structures of Two New Platinum Phosphosilicides, PtSi₃P₂ and PtSi₂P₂; Electrical Resistivity of PtSi₃P₂

Title data

Perrier, Christophe ; Kirschen, Marcus ; Vincent, Henri ; Gottlieb, Ullrich ; Chenevier, Bernard ; Madar, Roland:
Synthesis and Crystal Structures of Two New Platinum Phosphosilicides, PtSi₃P₂ and PtSi₂P₂; Electrical Resistivity of PtSi₃P₂.
In: Journal of Solid State Chemistry. Vol. 133 (1997) Issue 2 . - pp. 473-478.
ISSN 0022-4596
DOI: https://doi.org/10.1006/jssc.1997.7512

Abstract in another language

Two phosphosilicides PtSi3P2and PtSi2P2have been prepared in a tin flux and their crystal structures determined from single crystal X-ray diffraction data. PtSi3P2 crystallizes in the triclinic space group P1,a=4.840(1)Å, b=5.482(1)Å, c=8.052(1)Å, α=91.57(1)°, β=93.52(1)°, γ=108.14(1)°, Z=2. PtSi2P2 crystallizes in the monoclinic space group P21, a=6.025(1)Å, b=9.468(1)Å, c=11.913(1 Å, and β=102.91(1)°,Z=8. Final R factors are R=0.049 for the former and R=0.040 for the latter. Pt atoms are octahedrally coordinated by P and Si atoms. P and Si atoms are tetrahedrally surrounded by Pt, Si, and P atoms. In PtSi₃P₂ Pt octahedra, connected via edge-sharing, form Pt₂(Si/P)₁₀ pairs separated from each other, while PtSi₂P₂ exhibits clusters of four edge-sharing octahedra with bonding between clusters via common corners. The behavior of the electrical resistivity of PtSi₃P₂ is metallic but with very high values.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Research Institutions > Affiliated Institutes > Fraunhofer Center for High Temperature Materials and Design (HTL)
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 14 Jun 2019 07:07
Last Modified: 14 Jun 2019 07:13
URI: https://eref.uni-bayreuth.de/id/eprint/49521