Acta Crystallographica Section E (Sep 2011)
trans-Diaquabis(dl-valinato-κ2N,O)nickel(II)
Abstract
In the title complex, [Ni(C5H9NO2)2(H2O)2], the NiII atom, located on a centre of inversion, is trans-coordinated by two O atoms and two N atoms from d-bidentate valine and l-bidentate valine ligands and two water O atoms in an octahedral geometry. In the crystal, the discrete mononuclear units are linked into a three-dimensional network via O—H...O and N—H...O hydrogen bonds. C—H...O interactions are also observed.