ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Spectrophotometric study of bromo-nickel complexes in the acetone

T. Šramko

Slovak Technical University, Bratislava

Abstract: The system [Ni(ClO₄)₂.6H₂O]-LiBr-Me₂CO and [NiBr₂.6H₂O]-LiBr-Me₂CO was studied by spectrophotometry. The formation of mono-, di-, tri-, and tetrabromonickel (II) complexes in acetone shows absorption bands with max. at ∼425, ∼480, 495, [610], 646, 710, 700, and 750 mμ. NiBr₂ is partially disproportionated in acetone soln. into NiBr₃^- and possibly NiBr⁺. With the agreement of published data on tetrahedral Ni(II) complexes, it was assumed that in the acetone soln. the tetrahedral ion NiBr₄^2- was formed.

Full paper in Portable Document Format: 1710-11a725.pdf (in Slovak)

Chemical Papers 17 (10-11) 725–734 (1963)