X-ray study of the thermolysis products of (NH4)2[OsCl6] x[PtCl6]1− x.

Thermolysis of the complex salts (NH4)2[OsCl6] x[PtCl6]1− x ( x = 0.25−0.9) formed nanocrystalline Os xPt1− x phases. Pseudomorphism has been found: the habit of the single crystals of the starting salts is preserved during thermolysis, and the ∼10–20 nm metal particles are agglomerated into octahedral structures sized 5–10 μm. [ABSTRACT FROM AUTHOR]