Journal of Structural Chemistry

, Volume 48, Issue 3, pp 486–493 | Cite as

Synthesis of non-equilibrium PtxOs1−x Solid solutions. Crystal structure of [Pt(NH3)4][OsCl6]

  • I. V. Korol’kov
  • A. I. Gubanov
  • K. V. Yusenko
  • I. A. Baidina
  • S. A. Gromilov


Several non-equilibrium solid solutions belonging to the platinum-osmium systems Os0.9Pt0.1, Os0.8Pt0.2, Os0.5Pt0.5, Os0.7Pt0.3, Os0.75Pt0.25 are prepared and studied. The thermal decomposition of [Pt(NH3)4][OsCl6] in the hydrogen and helium atmosphere is investigated. It is found that the Pt0.5Os0.5 solid solution develops through the formation of (NH4)2[OsCl6] and a metallic phase based on Pt. The crystal structure of a double complex salt [Pt(NH3)4][OsCl6] is studied (X8-APEX Bruker, 1508 independent reflections, R = 2.04%). Crystal data for PtOsN4Cl6H12 are: a = 11.6216(5) Å, b = 11.0016(5) Å, c = 10.3819(5) Å, V = 1327.4(1) Å3, space group Cmca, Z = 4, d x = 3.333 g/cm3. The coordination polyhedron around Os is octahedral: 〈Os-Cl〉 2.357 Å, ∠Cl-Os-Cl 89.5–90.5°, while around Pt it is square-planar: Pt-N 2.046 Å, ∠ N-Pt-N 89.59° and 90.41°.


platinum osmium thermal decomposition powder X-ray diffraction crystal chemical analysis 


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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • I. V. Korol’kov
    • 1
  • A. I. Gubanov
    • 1
  • K. V. Yusenko
    • 1
  • I. A. Baidina
    • 1
  • S. A. Gromilov
    • 1
  1. 1.A. V. Nikolaev Institute of Inorganic Chemistry, Siberian DivisionRussian Academy of SciencesNovosibirsk

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