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The complex [Pt2(μ-H)(μ-S)(dppe)2](PF6) undergoes a displacive order–disorder transformation at ca 230 K. The low-temperature structure is ordered with one cation–anion pair as the asymmetric unit in space group P21/n. At room temperature the b axis is halved and the space group is P2/n, imposing crystallographic twofold rotation symmetry on both ions; the anion shows major disorder and there is probably minor disorder in the cation, but its internal geometry remains essentially unchanged. The heteronuclear complex [PdPt(μ-H)(μ-S)(dppe)2](PF6) is isostructural with the Pt2 complex at room temperature. All three structures have been determined crystallographically and both complexes have been extensively characterized by NMR spectroscopy, unambiguously confirming the genuine heteronuclear nature of the mixed-metal complex and the presence of the bridging hydride ligand.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks pg11a, pg11, global, pg11b

fcf

Structure factor file (CIF format)
Contains datablock pg11a

fcf

Structure factor file (CIF format)
Contains datablock pg11

fcf

Structure factor file (CIF format)
Contains datablock pg11b

CCDC references: 131543; 131544; 131545

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