Acta Cryst. (2006). E62, m2583-m2585  [ doi:10.1107/S160053680603621X ]

Hydronium tris(oxamide dioxime-²N,N')nickel(II) triiodide

M. Bélombé, J. Nenwa, A. L. Kammoe and P. F. P. Poudeu

Abstract: The title compound, (H₃O)[Ni(C₂H₆N₄O₂)₃]I₃ or (H₃O)[Ni(H₂oxado)₃]I₃, where H₂oxado = oxamide dioxime, contains six [Ni(H₂oxado)₃]²⁺ cations, six H₃O⁺ cations and eighteen I^- anions in the unit cell. The Ni atom lies on a position of site symmetry 32 and the hydronium cation is disordered on a position of site symmetry . The crystal packing is consolidated by O-HO hydrogen bonds that link the cations along c into positively charged pillars. The proton balancing the charge of the iodide ions is attached to the water molecule of crystallization, thus forming a hydronium ion.

Online 15 September 2006

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