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Aqua-[2,6-bis-(2-pyridylamino)pyridine]sulfatonickel(II) monohydrate.

ABSTRACT: The Ni atom in the title complex, [Ni(SO(4))(C(15)H(13)N(5))(H(2)O)]·H(2)O, has a distorted trigonal-bipyramidal coordination formed by the tridentate 2,6-bis-(2-pyridylamino)pyridine (tpdaH(2)) ligand, one sulfate and one coordinated water mol-ecule. The tpdaH(2) ligand is three-coordinated, with the N atom of the central pyridine ring in the equatorial position [Ni-N = 1.9961?(14)?Å] and the N atoms of the peripheral pyridine rings in the axial positions [Ni-N = 1.9668?(15) and 1.9895?(15)?Å]. The remaining equatorial positions are occupied by the O atoms of the sulfate ligand and the water molecule. The H atoms of both NH groups of the tpdaH(2) ligand are involved in hydrogen bonds with the O atoms of the uncoordinated water mol-ecule and the sulfate group which link the complex mol-ecules, forming an infinite three-dimensional network.

SUBMITTER: Lu L

PROVIDER: S-EPMC2960066 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature

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Aqua-[2,6-bis-(2-pyridylamino)pyridine]sulfatonickel(II) monohydrate.

Lu Lu L Wang Jun J Xie Bin B Zou Li-Ke LK

Acta crystallographica. Section E, Structure reports online 20081108 Pt 12

The Ni atom in the title complex, [Ni(SO(4))(C(15)H(13)N(5))(H(2)O)]·H(2)O, has a distorted trigonal-bipyramidal coordination formed by the tridentate 2,6-bis-(2-pyridylamino)pyridine (tpdaH(2)) ligand, one sulfate and one coordinated water mol-ecule. The tpdaH(2) ligand is three-coordinated, with the N atom of the central pyridine ring in the equatorial position [Ni-N = 1.9961 (14) Å] and the N atoms of the peripheral pyridine rings in the axial positions [Ni-N = 1.9668 (15) and 1.9895 (15) Å]. ...[more]

PMID: 21581113

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