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Perchlorate complexes of Cu(II) and Co(II) and nitrato complexes of Co(II) in the acetone

J. Gažo

Slovak Technical University, Bratislava


Abstract: By phys.-chem. analyses of solns. of CuCl2-[LiClO4 + 3H2O], [NaClO4 + H2O]-Me2CO, the formation of chloroperchlorate-copper(II) complexes was detd. It was assumed that in the acetone soln. there is an existence of multi-Cu(II) complexes with ClO4- groups acting as bridge ligands. The formation of nitrato-Co(II) and Cl--nitrato-Co(II) complexes was detd. The entrance of the NO8- group into the inner sphere of heterogeneous Cl--nitrato-Co(II) complexes is not only shown by shifting of max. absorption bands, typical for the system CoCl2-Me2CO, but also by a formation of a new absorption band. From the deformation of the absorption curve in the system CoCl2-Me2CO, after introducting ClO4- into the soln., it was detd. that in acetone chloro-perchlorate-Co(II) complexes form.

Full paper in Portable Document Format: 1710-11a717.pdf (in Slovak)


Chemical Papers 17 (10-11) 717–724 (1963)

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