| pubmed-article:21583038 | pubmed:abstractText | The title compound, [Ni(C(11)H(10)N(2)O(2))(2)](NO(3))(2), consists of an Ni(II) atom coordinated by two tridentate chelating di-2-pyridylmethane-diol [(2-py)(2)C(OH)(2)] ligands. The Ni(II) atom is located on an inversion center. The geometry around the Ni(II) atom is distorted octa-hedral. The gem-diol (2-py)(2)C(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 octa-hedral environment [Ni-N = 2.094?(2) and 2.124?(3)?Å, and Ni-O = 2.108?(3)?Å]. One of the hydr-oxy H atoms is split over two positions which both inter-act with the nitrate anion. The occurence of different O-H?O hydrogen bonds leads to the formation of a layer parallel to the (101) plane. | lld:pubmed |
