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2005
Tellurium
I 0053
13- 023
Synthesis, Structural Characterization, and Computanional Study of the Strong
Oxidant Salt [XeOTeF5][Sb(OTeF5)6]·SO2ClF. — The strongly oxidizing title compound is synthesized by reaction of stoichiometric amounts of Xe(OTeF5)2 and
Sb(OTeF5)3 in SO2ClF solution at -78 °C. The compound is characterized in SO2ClF
solution by low-temperature 17O, 19F, 121Sb, 125Te, and 129Xe NMR spectroscopy, showing the Xe···O donor—acceptor bond of the X eOT eF+5 ·SO2ClF adduct to be labile at
temperatures as low as -80 °C. [XeOTeF 5][Sb(OTeF5)6]·SO2ClF crystallizes in the triclinic space group P1 with Z = 2 (single crystal XRD at -100 °C). Unlike M F-6 in
[XeF][MF6] (e.g. M: As, Sb, Bi) and [XeOTeF5][AsF6], the Sb(OTeF5 )-6 anion is significantly less basic and does not interact with the coordinately unsaturated xenon(II)
cation. Rather, the X eOT eF+5 cation and SO2ClF, interact by coordination of an oxygen
atom of SO2ClF to Xe (Xe···O: 2.471 Å). The compound is further characterized by
Raman spectroscopy and electronic structure calculations. — (MERCIER, H. P. A.;
MORAN, M. D.; SANDERS, J. C. P.; SCHROBILGEN*, G. J.; SUONTAMO, R. J.;
Inorg. Chem. 44 (2005) 1, 49-60; Dep. Chem., McMaster Univ., Hamilton,
Ont. L8S 4M1, Can.; Eng.) — Schramke
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