trans-Chlorido(dimethyl sulfoxide-κS)(pyridine-2-carboxyl­ato-κ(2) N,O)platinum(II)

In the title complex, [Pt(C(6)H(4)NO(2))Cl(C(2)H(6)OS)], the Pt(II) ion is in a distorted square-planar environment defined by the N and O atoms from the chelating pyridine-2-carboxyl­ate (pic) anionic ligand, one S atom of the dimethyl sulfoxide mol­ecule and one Cl ion. The complex is disposed about a crystallographic mirror plane parallel to the ac plane passing through all the atoms of the complex except the methyl atoms of the dimethyl sulfoxide. The mol­ecules are stacked in columns along the b axis with a Pt⋯Pt distance of 4.9508 (5) Å. Within the column, inter­molecular C—H⋯O hydrogen bonds and weak π–π inter­actions between adjacent pyridine rings are present, the shortest centroid–centroid distance being 5.153 (4) Å.