Abstract

Complexes [Co(NH3)6][PdCl4]Cl (I) and [Co(NH3)6]2[PtCl4]3 (II) are synthesized and characterized. Complex I is isolated for the first time. The compositions and structures of the complexes are confirmed by X-ray structure analysis (CIF file CCDC no. 1830657), X-ray diffraction analysis, IR spectroscopy, and elemental analysis. The thermal decomposition of complex I in air gives the three-phase product: Pd (space group Fm3m), PdO (space group P $$\bar {4}$$ n2), and Co3О4 (space group Fd3m). The two-phase product consisting of metallic platinum Pt (space group Fm3m) and cobalt oxide Co3О4 (Fd3m) is formed as a result of the thermal decomposition of complex II is revealed that the single-phase product (a solid solution based on the noble metal and cobalt) can be obtained by the thermal decomposition of the corresponding binary complexes in a hydrogen flow or by chemical reduction using a solution of N2H4 · HCl.

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