Acta Cryst. (2009). E65, m678-m679  [ doi:10.1107/S1600536809018728 ]

Bis(di-2-pyridylmethanediol-³N,O,N')nickel(II) dinitrate

S. M. Yu, Y. J. Song, K. C. Kim, C. Kim and Y. Kim

Abstract: The title compound, [Ni(C₁₁H₁₀N₂O₂)₂](NO₃)₂, consists of an Ni^II atom coordinated by two tridentate chelating di-2-pyridylmethanediol [(2-py)₂C(OH)₂] ligands. The Ni^II atom is located on an inversion center. The geometry around the Ni^II atom is distorted octahedral. The gem-diol (2-py)₂C(OH)₂ ligand adopts the coordination mode ¹:¹:¹. The Ni-N and Ni-O bond lengths are typical for high-spin Ni^II in an octahedral environment [Ni-N = 2.094 (2) and 2.124 (3) Å, and Ni-O = 2.108 (3) Å]. One of the hydroxy H atoms is split over two positions which both interact with the nitrate anion. The occurence of different O-HO hydrogen bonds leads to the formation of a layer parallel to the (101) plane.

Online 23 May 2009

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