COMPLEXATION PROPERTIES AND OXIDATION STAGES OF PLATINUM CHLORIDES
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Platinum compounds, especially its chlorides, play an important role in catalysis in inorganic chemistry, as complex-forming agents in coordination chemistry, as well as in electrochemistry and materials science. The main oxidation states of platinum - Pt(0), Pt(II), and Pt(IV) - interconvert through various equilibria, ligand exchange reactions, and redox processes. This article examines the chemical properties of platinum(II) chloride compounds (PtCl₂/[PtCl₄]²⁻) and platinum(IV) chloride compounds (PtCl₄/[PtCl₆]²⁻), some of the complex compounds they form, as well as the stages of transition of platinum ions from the Pt(II) oxidation state to the Pt(IV) oxidation state.
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