Date Published: September 01, 2012
Publisher: International Union of Crystallography
Author(s): Kwang Ha.
The PtIV ion in the title complex, [PtBr4(C10H9N3)], is six-coordinated in a slightly distorted octahedral environment by two pyridine N atoms from a chelating di-2-pyridylamine (dpa) ligand and four Br− anions. The complex molecule has mirror symmetry, with the PtIV atom, two Br atoms and the central N atom of the dpa ligand lying on the mirror plane. The dpa ligand is not planar, showing a dihedral angle of 34.7 (2)° between the pyridine rings. The complex molecules are connected by intermolecular N—H⋯Br hydrogen bonds, forming chains along . Intermolecular C—H⋯Br hydrogen bonds and π–π interactions between the pyridine rings [centroid–centroid distance = 3.667 (4) Å] are also observed.
For the structures of the related complexes [PtCl4(dpa)] and [PtBr2(dpa)], see: Ha (2011 ▶, 2012 ▶).