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Complexes of NN′-di-(2-aminoethyl)malondiamide, CH<sub>2</sub>(CO·NH·CH<sub>2</sub>·CH<sub>2</sub>·NH<sub>2</sub>)<sub>2</sub>, with nickel, copper, and cobalt
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1968
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Inorganic ChemistryChemical EngineeringEngineeringCoordination ComplexSquare-planar Quadridentate LigandLigand Nn′-di-Molecular ComplexChemistryHydrogen AtomsInorganic SynthesisInorganic Compound
The ligand NN′-di-(2-aminoethyl)malondiamide, CH2(CO·NH·CH2·CH2·NH2)2(LH2), can function as a square-planar quadridentate ligand with metals able to ionise amide hydrogen atoms. Copper and nickel form neutral complexes, ML, the nickel complex being diamagnetic. With cobalt, the diamagnetic complex [CoL(NH3)2]Cl has been obtained.