Triatomic cationic iodonium(III) interhalogen derivatives, their synthesis and structure

Wilson, William W.; Dalziel, J. R.; Aubke, F.

doi:10.1016/0022-1902(75)80518-5

Cited by 11 publications

(3 citation statements)

References 35 publications

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“…Two indications that a reaction takes place are a noticeable decrease in the viscosity of SbF5 after about 1 day, and a slight increase in vapour pressure above the reaction mixture. Both observations may be attributed to the formation of Sb2F9S03F (7).…”

Section: Resultsmentioning

confidence: 86%

“…Previous use of this synthetic method by us (6)(7)(8)10) had in all instances led to products where molecular cations are stabilized by Sb2Fll-, and in one case (8) even by Sb3F16-. For the spherical, less electrophilic M'+ cations, SbF6-appears to be the more suitable counteranion, allowing formation of layered materials as discussed below.…”

Section: Resultsmentioning

confidence: 99%

“…Initial uses of the solvolysis reaction in SbF5 have involved the stabilization of nonmetallic cations, such as C102+ (6), a series of triatomic interhalogen cations (7), or the 'Author to whom correspondence may be addressed. dihalogen cations Br2+ and 12+ (8) in solid compounds.…”

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confidence: 99%

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Hexafluoro antimonates(V) of divalent metals, synthesis and properties

Cader¹,

Aubke²

1989

Can. J. Chem.

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This paper is dedicated to Professor Ronald J . Gillespie on the occasion of his 651h bir~hday M. S. R. CADER and F. AUBKE. Can. J. Chem. 67, 1700 (1989).Solvolysis of metal(I1) fluorosulfates in liquid antimony(V) fluoride according to:with M = Sn, Ni, Pd, Cu, or Ag, is found to be a clean, efficient route to the hexafluoro antimonates of the corresponding metals. Two of the compounds reported here display unusual features: Pd(SbF6)2 is, like its fluorosulfate precursor, paramagnetic with the Pd2+ ion in a 3~2 g ground state, and an analysis of the ligand field spectrum is presented; Ag(SbF6l2 is, unlike a recently reported paramagnetic, blue, valence isomer, diamagnetic and nearly white in color. Formulation as a mixed valency compound Ag(I)Ag(III)(SbF6)4 is suggested. Low temperature magnetic susceptibility measurements (where appropriate), Raman, and IR data are reported. The hexafluoro antimonates of Ni, Pd, and Cu show antiferromagnetic exchange at very low temperatures. Pd(SbF6)2 shows very weak ferromagnetism below 10 K.Key words: fluoroantimonates of divalent metals, synthesis and solvolysis in SbF5, vibrational spectra, magnetic susceptibility measurements. [Traduit par la revue] Introduction Antimony(V) fluoride, SbF5, is commonly regarded as the strongest molecular Lewis acid (1). Conversely the anions SbF6-and the related Sb2F1 I -are extremely weak nucleophiles (2), capable of stabilizing a wide range of electrophilic cations, both in solid compounds or in HF-SbF5 superacid solution (3, and references therein).The objective of this study is the synthesis and characterization of SbF6-salts formed by divalent metal cations. The synthetic route chosen is the solvolysis of metal fluorosulfates in liquid SbF5 according to the general route:

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Section: Resultsmentioning

confidence: 86%