Acta Cryst. (2009). E65, m1193-m1194  [ doi:10.1107/S1600536809035570 ]

Bis[2-(benzylamino)pyridine-N](2-formyl-6-methoxyphenolato-²O¹,O⁶)(nitrato-²O,O')nickel(II)

R. J. Butcher, Y. Gultneh and K. Ayikoé

Abstract: In the title compound, [Ni(C₈H₇O₃)(NO₃)(C₁₂H₁₂N₂)₂], the asymmetric unit contains a Ni^II atom, two molecules of 2-(benzylamino)pyridine, a molecule of deprotonated o-vanillin (3-methoxysalicylaldehydate) and a bidentate nitrate anion. The Ni^II center is six-coordinated by two pyridine N atoms from 2-(benzylamino)pyridine, two O atoms from o-vanillin and two O atoms from the nitrate anion. The crystal packing shows two hydrogen bonds from the amine N-H group to the deprotonated phenol O atom of the o-vanillin moieties, as well as weak C-HO secondary interactions. These interactions link the molecules into ribbons in the c direction. The steric requirement of the bidentate nitrate and its small bite angle [61.01 (3)°] cause some orientation of the two 2-(benzylamino)pyridine groups. As a result, this coordination environment of the Ni^II center is distorted octahedral, as the trans angles range from 158.65 (3) to 175.76 (3)° and the cis angles range from 61.01 (3) (for the bidentate nitrate O atoms) to 102.30 (4)°.

Online 9 September 2009

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