Chemistry in fuming nitric acids—I. NMR spectroscopic study of PF5, HPO2F2 and P4O10 in the solvent system 44 wt.% N2O4 in 100% HNO3期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Chemistry in fuming nitric acids—I. NMR spectroscopic study of PF₅, HPO₂F₂ and P₄O₁₀ in the solvent system 44 wt.% N₂O₄ in 100% HNO₃

Authors:	C.Clifford Addison John W. Bailey Simon H. Bruce Michael F.A. Dove Richard C. Hibbert Norman Logan

Affiliation:	Department of Chemistry, University of Nottingham, University Park Nottingham NG7 2RD, England

Abstract:	³¹P and ¹⁹F NMR spectroscopy has been used to elucidate the nature of the interaction of PF₅, HPO₂F₂ and P₄O₁₀ with the solvent system 44 wt.% N₂O₄ in 100% HNO₃ (“High Density Acid”, HDA). PF₅ generates the species PF₆^?, HPO₂F₂ and HF (with some H₂PO₃F present as a minor product). HPO₂F₂ gives rise to H₂PO₃F and HF (with smaller amounts of PF₆ also present). The ³¹P NMR spectrum of P₄O₁₀ in HDA exhibits four resonances assigned to P(OH)₄⁺, H₄P₂O₇, (HPO₃)₄ and a mixture of cyclic and branched phosphoric acids, respectively.

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