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Journal of Structural Chemistry

2012 year, number 6

CRYSTAL STRUCTURE AND THERMAL PROPERTIES OF [Pt(NH3)5Cl][ReCl6]ClГ—H2O

A. V. Zadesenets, I. V. Korol’kov, S. A. Gromilov
Keywords: rhenium, platinum, thermolysis, crystal chemistry, single crystal X-ray diffraction analysis, powder X-ray diffraction analysis

Abstract

The crystal structure of double complex salt [Pt(NH3)5Cl][ReCl6]Cl×H2O is determined. Crystallographic characteristics are: a = 23.9502(4) Å, b = 7.5963(1) Å, c = 8.9016(2) Å, V = 1619.49(5) Å3, space group Pnma, Z = 4, dx = 3.150 g/cm3. The packing of structural fragments is studied. It is shown that on heating the salt in a helium atmosphere up to 840 °С a mixture of two solid solutions of fcc Pt0.90Re0.10 and hcp Pt0.25Re0.75 forms.