Liquid NSF3 reacts with [XeF][AsF6] to form [F3SNXeF][AsF6], 1 . On mild warming in the solid state, compound 1 rearranges to [F4SNXe][AsF6], 2 . Reaction of compound 2 with HF yields [F4SNH2][AsF6], 3 , [F5SN(H)Xe][AsF6], 4 , and XeF2 . (See G. L. Smith, H. P. A. Mercier, G. J. Schrobilgen, Inorg. Chem. , 2007 , 46 , 1369; Inorg. Chem. , 2008 , 7 , 4173; and J. Am. Chem. Soc. , 2009 , 131 , 4173.)
a. What is the bond order in [XeF]+?
b. Of compounds 1 through 4 , which has the longest S—N distance? The shortest?
c. Which of the compounds 1 through 4 is most likely to have linear bonding around the nitrogen atom?
d. By the VSEPR approach, is the bonding around Xe expected to be linear or bent in compound 1 ?
e. In compounds 2 and 3 , are the NXe and NH2 groups likely to occupy axial or equatorial sites on sulfur?
f. In compounds 2 and 3 , which bonds are more likely to be longer, the S–Faxial bonds or S–Fequatorial bonds?
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