Abstract
The PtII ion in the title complex, [PtBr2(C14H10N4)], is four-coordinated in a distorted square-planar environment by two N atoms of a chelating 2,3-di-2-pyridylpyrazine ligand and two bromide anions. In the crystal, the pyridyl ring coordinated to the Pt atom is inclined slightly to its carrier pyrazine ring [dihedral angle = 14.7 (2)°], whereas the uncoordinated pyridyl ring is inclined considerably to the pyrazine ring [dihedral angle = 51.9 (3)°]. The dihedral angle between the two pyridyl rings is 57.7 (3)°. Two complex molecules are assembled through intermolecular C—H⋯N hydrogen bonds, forming a dimer-type species. Intramolecular C—H⋯Br and C—H⋯N hydrogen bonds are also present.
Highlights
The pyridyl ring coordinated to the Pt atom is inclined slightly to its carrier pyrazine ring
Two complex molecules are assembled through intermolecular C—H N hydrogen bonds, forming a dimer-type species
In the title complex, [PtBr2(dpp)], the PtII ion is four-coordinated in a distorted square-planar environment by two N atoms from the pyrazine ring and one pyridyl ring of the chelating dpp ligand and two bromide anions (Fig. 1)
Summary
R factor = 0.040; wR factor = 0.099; data-to-parameter ratio = 19.2. The PtII ion in the title complex, [PtBr2(C14H10N4)], is fourcoordinated in a distorted square-planar environment by two. N atoms of a chelating 2,3-di-2-pyridylpyrazine ligand and two bromide anions. The pyridyl ring coordinated to the Pt atom is inclined slightly to its carrier pyrazine ring [dihedral angle = 14.7 (2) ], whereas the uncoordinated pyridyl ring is inclined considerably to the pyrazine ring [dihedral angle = 51.9 (3) ]. The dihedral angle between the two pyridyl rings is 57.7 (3). Two complex molecules are assembled through intermolecular C—H N hydrogen bonds, forming a dimer-type species.
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