Platinum Complexes of 1,4,7-Trithiacyclodecane

A neutral Pt^II complex, dichloro(1,4,7-trithiacyclodecane-S¹,S⁷)platinum, [PtCl₂(C₇H₁₄S₃)], and a hydrated salt of a cationic Pt^II complex, bis(1,4,7-trithiacyclodecane-S¹,S⁴)platinum dichloride heptahydrate, [Pt(C₇H₁₄S₃)₂]Cl₂.7H₂O, have been studied. The ten-membered heterocyclic ligand, 1,4,7-trithiacyclodecane (10S3), forms a six-membered chelate ring in the neutral complex, where the average Pt—S and Pt—Cl bond lengths are 2.255 (5) and 2.334 (4) Å, respectively, and the average weak axial Pt...S interaction distance is 3.137 (5) Å. The same ligand in the cationic complex forms two five-membered chelate rings in which the average length of the four equatorial Pt—S bonds is 2.296 (2) Å and the lengths of the two weak axial Pt...S bonds are 3.159 (2) Å.

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