Chemistry in fuming nitric acids—I. NMR spectroscopic study of PF5, HPO2F2 and P4O10 in the solvent system 44 wt.% N2O4 in 100% HNO3
| Autor: | Michael F. A. Dove, Richard C. Hibbert, Norman Logan, Simon H. Bruce, John W. Bailey, C. Clifford Addison |
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| Rok vydání: | 1983 |
| Předmět: |
Solvent system
chemistry.chemical_classification Dimer Inorganic chemistry High density Nuclear magnetic resonance spectroscopy Inorganic acids Inorganic Chemistry chemistry.chemical_compound chemistry Phosphorus oxide Materials Chemistry Physical and Theoretical Chemistry Solvent effects Inorganic compound Nuclear chemistry |
| Zdroj: | Polyhedron. 2:651-656 |
| ISSN: | 0277-5387 |
| DOI: | 10.1016/s0277-5387(00)81528-4 |
| Popis: | 31 P and 19 F NMR spectroscopy has been used to elucidate the nature of the interaction of PF 5 , HPO 2 F 2 and P 4 O 10 with the solvent system 44 wt.% N 2 O 4 in 100% HNO 3 (“High Density Acid”, HDA). PF 5 generates the species PF 6 − , HPO 2 F 2 and HF (with some H 2 PO 3 F present as a minor product). HPO 2 F 2 gives rise to H 2 PO 3 F and HF (with smaller amounts of PF 6 also present). The 31 P NMR spectrum of P 4 O 10 in HDA exhibits four resonances assigned to P(OH) 4 + , H 4 P 2 O 7 , (HPO 3 ) 4 and a mixture of cyclic and branched phosphoric acids, respectively. |
| Databáze: | OpenAIRE |
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