Platinum acetamidate blues

We like to conclude the section with the spectacular molecular structure of the octanuclear platinum acetamidate blue [Pt8(NH3)16 (CH3CONH)8]10+, Figure 2, even if no pertinent electrochemical investigation has been carried out.25... 

Platinum-acetamide-blue and platinum-uracil-blue compounds have been reported. The tetranuclear uracil blue [Pt4(l-MeU)4(NH3)g](N03)5-H20, where 1-MeU is the mono-anion of 1-methyluracil, has structure and properties resembling 2-pyridone-blues. Platinum blue compounds with uridine, isonicotinamide, malonamide, and biuret have been described. ... 

The original blue (K.A. Hofmann, 1908) was obtained from the reaction of Pt(MeCN)2Cl2 with silver salts over some hours. Under these conditions, the nitrite is hydrolysed to acetamide. Very recently, the structure of the complex [(H3N)2Pt(MeCONH)2Pt(NH3)2]4(NO3)10 has been determined (Figure 3.37). The average oxidation state of the platinums in the octamer is 2.25. 

PtCl2(py)DMF] is in equilibrium with [Pt2Cl4py2] and free DMF.51 The platinum blue product from the reaction of K2[PtCl4] with acetamide now appears to contain some Ptm and to have MeCONH- groups and not neutral acetamide.52... 

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