(2,2′-Bipyridine-κ2N,N′)tetrabromidoplatinum(IV)

Abstract

In the title complex, [PtBr4(C10H8N2)], the PtIV ion has a slightly distorted octa­hedral coordination defined by two N atoms of the chelating 2,2′-bipyridine ligand and four bromide ions. As a result of the different trans effects of the N and Br atoms, the Pt—Br bonds trans to the N atom are slightly shorter than those to mutually trans Br atoms. In the crystal structure, the mol­ecules are arranged in a V-shaped packing pattern along the b axis and stacked in columns along the a axis. In the columns, several inter­molecular π–π inter­actions between the pyridine rings are present. The shortest ring centroid–centroid distance is 3.921 (6) Å, with a dihedral angle of 1.6 (5)° between the ring planes. The complexes are connected by C—H⋯Br hydrogen bonds, forming chains along the b axis.