A new monoclinic polymorph of trans-dichloridodipyridinepalladium(II)

In the structure of the title compound, [PdCl2(C5H5N)2], the PdII atom is located on an inversion centre and the pyridine rings are coplanar. There is intermolecular π–π stacking between the pyridyl rings, with a centroid-to-centroid separation of 3.916 (1) . The structure is a new polymorph of two previously determined structures [Viossat, Dung & Robert (1993). Acta Cryst. C49, 84–85; Liao & Lee (2006). Acta Cryst. E62, m680–m681].