Complexing processes in M(II)-dithiomalonamide-diacetyl triple systems (M = Ni, Cu) in ethanol solution and in a metal(II)hexacyanoferrate(II) gelatin-immobilized matrix materials

Abstract

The complexing processes in the M^II-dithiomalonamide-diacetyl triple system (M = Ni, Cu) occuring in the nickel(II)- and copper(II) hexacyanoferrate(II) gelatin-immobilized matrix in contact with aqueous alkaline solutions (pH∼12) containing dithiomalonamide and diacetyl at room temperature, and between MCl<inf>2</inf>, dithiomalonamide and diacetyl in EtOH solutions upon heating to ∼80°C, have been studied. In the Ni ^II-dithiomalonamide-diacetyl system, template synthesis occurs in EtOH solution but does not occur in the gelatin-immobilized matrix, whereas in the Cu^II-dithiomalonamide-diacetyl system, template synthesis occurs in the gelatin-immobilized matrix but not in EtOH solution. Dithiomalonamide and diacetyl are the ligand synthons in the processes indicated.