Thiazyl Trifluoride (NSF3) Adducts and Imidodifluorosulfate (F2OSN-) Derivatives of Hg(OTeF5)2.

摘要: Reactions of Hg(OTeF5)2 with excess amounts NSF3 at 0 °C result in the formation adducts having compositions [Hg(OTeF5)2·N≡SF3]∞ (1), [Hg(OTeF5)2·2N≡SF3]2 (2), and Hg3(OTeF5)6·4N≡SF3 (3). When reactions are carried out room temperature, oxygen/fluorine metatheses occur yielding F2OSN- derivatives [Hg(OTeF5)(N═SOF2)·N≡SF3]∞ (4) [Hg3(OTeF5)5(N═SOF2)·2N≡SF3]2 (5). The proposed reaction pathway leading to group occurs by nucleophilic attack a F5TeO- sulfur(VI) atom NSF3, followed TeF6 elimination. Tellurium hexafluoride was confirmed (19)F NMR spectroscopy. molecules terminally N-coordinated mercury, whereas ligands N-bridged two mercury atoms. compound series characterized low-temperature single-crystal X-ray diffraction Raman Several structural motifs observed within this structurally diverse series. These include infinite chain structures related compounds, 1 4; 2, dimeric structure which possesses an (HgO(μ))2 ring its core; 3, based on cage comprised (HgO(μ))3 that is capped each face μ(3)-oxygen bridged groups; 5, possessing distorted (Hg3O2N) rings formally derived from 3 replacement ring. Quantum-chemical calculations were gain insight into bonding teflate groups 3. Compounds 1-5 represent novel class neutral transition metal complexes providing first examples coordination mercury. 4 5 also provide only have been diffraction.