In the title complex,[PdCl2 (C12H22S3)]· 0.8 CH3CN, a potentially tridentate thioether ligand coordinates in a cis-bidentate manner to yield a square-planar environment for the PdII cation [mean deviation of the Pd from the Cl2S2 plane= 0.0406 (7) Å]. Each square-planar entity packs in an inverse face-to-face manner, giving pairs with plane-to-plane separations of 3.6225 (12) Å off-set by 1.1263 (19) Å, with a Pd⋯ Pd separation of 3.8551 (8) Å. A ...