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Mercury is a Transition Metal: The First Experimental Evidence for HgF₄

Xuefang Wang, Lester Andrews, Sebastian Riedel, Martin Kaupp— 2007

Although the Group 12 elements are generally considered to be post-transition metals with filled d shells, quantum chemical calculations predict a stable HgF₄ square-planar d8 complex due to relativistic stabilization of HgIV relative to HgII. In its tetravalent oxidation state, mercury is a true transition metal that utilizes 5d orbitals fully in bonding. The first experimental evidence is reported for HgIVF₄ in solid neon by IR spectroscopy, after reaction of mercury with excess fluorine under mercury arc irradiation and subsequent annealing. Assignment of the new bands to HgF₄ is supported by coupled-cluster and density functional calculations of structures and vibrational frequencies.

TitelMercury is a Transition Metal: The First Experimental Evidence for HgF₄
VerfasserXuefang Wang, Lester Andrews, Sebastian Riedel, Martin Kaupp
Datum2007
Erschienen inAngew. Chem. 2007, 119, 8523 - 8527 (Angew. Chem. Int. Ed. 2007, 46, 8371 - 8375).
Spracheeng
ArtText