[Cl:1][Pt-2:2](Cl)(Cl)[Cl:3].[K+].[K+].[CH3:8][C:9]([CH3:14])([CH2:12][NH2:13])[CH2:10][NH2:11]>O>[Pt:2]([Cl:3])[Cl:1].[CH3:8][C:9]([CH3:14])([CH2:12][NH2:13])[CH2:10][NH2:11]To a solution of 12.45 g of potassium tetrachloroplatinate in 60 ml of water was added 3.06 g of 2,2-dimethyl-1,3-propanediamine. This mixture was allowed to stand overnight and then the solid was collected, giving 7.0 g of 2,2-dimethyl-1,3-propanediamine compound with platinum chloride (1:1).
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