Date Published: April 01, 2012
Publisher: International Union of Crystallography
Author(s): Kwang Ha.
The asymmetric unit of the title compound, [Pt(C10H9N3)2]Br2·H2O, contains two crystallographically independent half-molecules of the cationic PtII complex, two Br− anions and a lattice water molecule; an inversion centre is located at the centroid of each complex. Each PtII ion is four-coordinated in an essentially square-planar environment by four pyridine N atoms derived from the two chelating di-2-pyridylamine (dpa) ligands, and the PtN4 unit is exactly planar. The chelate ring formed by the dpa ligand displays a boat conformation, with dihedral angles between the pyridine rings of 35.9 (2) and 41.0 (2)°. The complex cations, Br− anions and solvent water molecules are linked by O—H⋯Br, N—H⋯Br, C—H⋯O and C—H⋯Br hydrogen bonds, forming a three-dimensional network.
For the crystal structures of the related PdII and PtII complexes, see: Živković et al. (2007 ▶); Antonioli et al. (2008 ▶); Guney et al. (2010 ▶).