Bis(di-2-pyridylamine-kappa2N2,N2')(nitrato-kappa2O,O')nickel(II) nitrate.

Acta Crystallogr C

Department of Inorganic Chemistry, Institute of Chemistry, P. J. Safárik University, Moyzesova 11, 041 54 Kosice, Slovakia.

Published: July 2009

In the ionic title compound, [Ni(NO(3))(C(10)H(9)N(3))(2)]NO(3), the central Ni(II) atom exhibits cis-NiN(4)O(2) octahedral coordination with three chelating ligands, viz. one nitrate anion and two di-2-pyridylamine (dpya) molecules. A second nitrate group acts as a counter-ion. The complex cations and the nitrate anions are also linked by N-H...O hydrogen bonds. The compound was prepared in two different reproducible ways: direct synthesis from Ni(NO(3))(2) and dpya yielded systematically twinned crystals (the twinning law is discussed), while single crystals were obtained unexpectedly from the Ni(NO(3))(2)/dpya/maleic acid/NaOH system.

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http://dx.doi.org/10.1107/S0108270109021131DOI Listing

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