Synthesis, molecular structure and NMR spectroscopy of a transition-metal bifluoride complex: formation via C–F activation or reaction with Et₃N·3HF

Abstract

The bifluoride complex, trans-[Ru(dmpe)₂(H)(HF₂)] (dmpe = Me₂PCH₂CH₂PMe₂), is generated by reaction of cis-[Ru(dmpe)₂H₂] either with fluoroarenes (C₆F₆, C₆F₅H and others) or by reaction with Et₃N·3HF; its solid-state structure, established crystallographically, reveals a Ru(η¹-FHF) moiety with a long Ru–F bond and an F···F distance close to that in bifluoride salts, while the presence of the same complex in solution is shown by low-temperature NMR spectra.

References

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