Chemical and thermal destruction of the platinum blue {Pt(Bipy)(NHCOCH3)2NO3 • mH2O}. The molecular and crystal structures of new binuclear Pt(III) acetamide [Pt2(Bipy)2(NHCOCH3)2(μ-NHCOCH3)2](NO3)2 • H2O

The chemical reactivity of mixed-valence "platinum blue" of the composition [Pt(Bipy)(NHCOCH3)(2)NO3 center dot mH(2)O] (n) (I) towards water, concentrated HCl, and ethanol was studied. The reaction of compound I with water gave previously unknown binuclear Pt(III) acetamide [Pt-2(Bipy)(2)(mu-NHCOCH3)(2)(NHCOCH3)(2)](NO3)(2) center dot H2O (II) (yield 19%), which was studied by X-ray diffraction. Upon the reaction of "blue" I with HClconc, destruction took place to give PtBipyCl(3) and Pt(IV) oxonium hexachloroplatinate (H3O)(2)[PtCl6] the structure of which was studied by X-ray diffraction; treatment of I with ethanol leads to partial reduction of the "blue" and destruction giving (according to X-ray diffraction data) the Pt(II) complex [Pt(Bipy)(2)](NO3)(2) center dot H2O (III). Thermal decomposition of I under inert atmosphere was studied by DSC and TGA.