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The Pt atom has a slightly distorted square-planar coordination in both title compounds, cis-[PtBr2(C2H6OS)2] and trans-[PtI2(C2H6OS)2], with the dimethyl sulfoxide ligands bonded via their S atoms. The bond distances to platinum in the bromo compound are Pt-Br 2.441 (1) and 2.447 (2), and Pt-S 2.254 (2) and 2.245 (2) Å, and in the centrosymmetric iodo complex are Pt-I 2.6111 (9) and Pt-S 2.289 (2) Å.
Supporting information
![cif](https://journals.iucr.org//../logos/filetypeicons/bw/b1/ciflogo.png) | Crystallographic Information File (CIF) Contains datablocks I, II, cis-PtBr2(dmso)2 |
![hkl](https://journals.iucr.org//../logos/filetypeicons/bw/b1/hkllogo.png) | Structure factor file (CIF format) Contains datablock I |
![hkl](https://journals.iucr.org//../logos/filetypeicons/bw/b1/hkllogo.png) | Structure factor file (CIF format) Contains datablock II |
CCDC references: 127041; 127042
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