Abstract
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 [001]. Intermolecular C—H⋯Br hydrogen bonds and π–π interactions between the pyridine rings [centroid–centroid distance = 3.667 (4) Å] are also observed.
Highlights
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 complex molecules are connected by intermolecular N—H Br hydrogen bonds, forming chains along [001]
Symmetry codes: (ii) x, y, z−1; (iii) −x, y−1/2, −z+1
Summary
R factor = 0.028; wR factor = 0.075; data-to-parameter ratio = 15.9. The Pt ion in the title complex, [PtBr4(C10H9N3)], is sixcoordinated 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). The complex molecules are connected by intermolecular N—H Br hydrogen bonds, forming chains along [001]. Intermolecular C—H Br hydrogen bonds and – interactions between the pyridine rings [centroid–centroid distance = 3.667 (4) Å] are observed
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