In the title compound, [PdCl(2)(C(20)H(26)O(2)S(2))], the Pd atom has a distorted square-planar coordination geometry, with Pd-S distances of 2.3121 (18) and 2.3102 (18) A, Pd-Cl distances of 2.291 (2) and 2.314 (2) A, and S-Pd-Cl angles of 94.98 (7) and 86.25 (7) degrees. Upon complexation, an 11-membered ring is formed by the S-Pd-S linkage in the ligand chain.

The preparation and crystal structure of the title compound, cis-dichloro [6,9-dioxa-3,12-dithiabicyclo[12.4.0]octadeca-14,-16,18(1)-triene-S,S H ]palladium(II), [PdCl 2 (C 14 H 20 O 2 S 2 )], are described. The Pd atom has a square-planar environment, coordinated to two S atoms of the dithiadioxa macrocycle and to two Cl À ions. The non-coordinating O atoms are oriented away from the metal coordination plane. Upon complexation, a bicyclic chelate structure, which consists of a seven-and an eleven-membered ring, is formed.