Fluoride-ion acceptor properties of WSF4: synthesis, characterization, and computational study of the WSF5(-) and W2S2F9(-) anions and 19F NMR spectroscopic characterization of the W2OSF9(-) anion

Jared Nieboer; Ralf Haiges; William Hillary; Xin Yu; Tyler Richardet; Hélène P A Mercier; Michael Gerken

doi:10.1021/ic3005882

Fluoride-ion acceptor properties of WSF4: synthesis, characterization, and computational study of the WSF5(-) and W2S2F9(-) anions and 19F NMR spectroscopic characterization of the W2OSF9(-) anion

Inorg Chem. 2012 Jun 4;51(11):6350-9. doi: 10.1021/ic3005882. Epub 2012 May 16.

Authors

Jared Nieboer¹, Ralf Haiges, William Hillary, Xin Yu, Tyler Richardet, Hélène P A Mercier, Michael Gerken

Affiliation

¹ Department of Chemistry and Biochemistry, The University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada.

PMID: 22591272
DOI: 10.1021/ic3005882

Abstract

The new [N(CH(3))(4)][WSF(5)] salt was synthesized by two preparative methods: (a) by reaction of WSF(4) with [N(CH(3))(4)][F] in CH(3)CN and (b) directly from WF(6) using the new sulfide-transfer reagent [N(CH(3))(4)][SSi(CH(3))(3)]. The [N(CH(3))(4)][WSF(5)] salt was characterized by Raman, IR, and (19)F NMR spectroscopy and [N(CH(3))(4)][WSF(5)]·CH(3)CN by X-ray crystallography. The reaction of WSF(4) with half an aliquot of [N(CH(3))(4)][F] yielded [N(CH(3))(4)][W(2)S(2)F(9)], which was characterized by Raman and (19)F NMR spectroscopy and by X-ray crystallography. The WSF(5)(-) and W(2)S(2)F(9)(-) anions were studied by density functional theory calculations. The novel [W(2)OSF(9)](-) anion was observed by (19)F NMR spectroscopy in a CH(3)CN solution of WOF(4) and WSF(5)(-), as well as CH(3)CN solutions of WSF(4) and WOF(5)(-).