Abstract
The title compound belongs to the monoclinic space groupP21/c,a=20.29(1),b=12.644(8),c=18.25(1), Å,β=95.76(5)°. The unit cell contains two dimeric [Hg(CF3CO2)2PPh3]2 molecules in which each Hg atom forms strong primary bonds to a PPh3 molecule and an oxygen of a monodentate trifluoroacetate ligand. These two Hg atoms are bridged by two extra trifluoroacetate ligands, one providing a single oxygen to a Hg-O-Hg bridge, the other including both carboxylate oxygens in a Hg-O-C-O-Hg bridging moiety. This unusual type of bridging makes the two halves of the molecule symmetry independent, leading to distinct signals at 31.5 and 29.9 ppm for the phosphines in the31P CP-MAS NMR spectrum of the solid complex.
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Allman, T., Bélanger-Gariépy, F. & Beauchamp, A.L. Crystal structure and solid-state31P CP-MAS NMR spectrum of the bis(trifluoroacetato) (triphenylphosphine)mercury(II) dimer [Hg(CF3CO2)2PPh3]2 . Journal of Crystallographic and Spectroscopic Research 20, 149–155 (1990). https://doi.org/10.1007/BF01160967
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DOI: https://doi.org/10.1007/BF01160967