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Can Weakly Coordinating Anions Stabilize Mercury in its Oxidation State +IV?

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Sebastian Riedel, Michal Straka, Martin Kaupp – 2005

In view of the recent experimental observation of the existence of tetravalent Hg(IV) in HgF₄, a quantum chemical study of various trivalent group 12 M(III) fluoride complexes has been carried out. The M-F bonds in neutral MF₃ are relatively weak, making these species unlikely targets. Some additional stability can be obtained by dimerizing HgF₃ to Hg₂F₆, which has a doubly fluorine-bridged triplet ground state. Anionic [MF₄]⁻ and [MF₅]²⁻ species are found to be more stable toward F₂ elimination and M-F bond breaking than neutral MF₃.

Titel
Can Weakly Coordinating Anions Stabilize Mercury in its Oxidation State +IV?
Verfasser
Sebastian Riedel, Michal Straka, Martin Kaupp
Datum
2005
Erschienen in
Chem. Eur. J. 2005, 11, 9, 2743 - 2755
Zitierweise
DOI: 10.1002/chem.200401130
Sprache
eng