Pentafluoro-oxotellurate(VI) Anions of Mercury(II); Syntheses and Structures of [Hg(OTeF5)4]2–, [Hg(OTeF5)5]3–, [Hg2(OTeF5)6]2–, [Hg(OTeF5)4]2–·Hg(OTeF5)2, and [Hg2(OTeF5)7]3–·Hg(OTeF5)2

Mercury(II) anions derived from the F5TeO- (teflate) group were synthesized and structurally characterized. The salts, [N(CH2CH3)4]2[Hg(OTeF5)4], [N(CH3)4]3[Hg(OTeF5)5], [N(CH2CH3)4]3[Hg(OTeF5)5], [N(CH3)4]2[Hg2(OTeF5)6], Cs2[Hg(OTeF5)4]·Hg(OTeF5)2, and {Cs3[Hg2(OTeF5)7]·Hg(OTeF5)2}·4SO2ClF, were obtained by reaction of Hg(OTeF5)2 with [M][OTeF5] (M = [N(CH3)4](+), [N(CH2CH3)4](+), Cs(+)) and were characterized by low-temperature single-crystal …