Dioxygenyl hexafluoroplatinate
Reaction formatting
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==Preparation== |
==Preparation== |
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| ⚫ | Dioxygenyl hexafluoroplatinate can be synthesized from the elements by the action of a mixture of [[oxygen]] and [[fluorine]] gas on [[platinum]] sponge at 450 °C.{{cite journal | volume = 115 | journal = [[J. Chem. Soc.]] | title = Fluorides of the Noble Metals. Part II. Dioxygenyl hexafluoroplatinate(V), {{chem|[O|2|]|+|[PtF|6|]|-}}. | first1 = Neil | last1 = Bartlett | authorlink1 = Neil Bartlett (chemist) | first2 = D. H. | last2 = Lohmann | year = 1962 | pages = 5253–5261 | doi=10.1039/jr9620005253}} It can also be prepared by the reaction of [[oxygen difluoride]] ({{chem|O|F|2}}) with [[platinum sponge]]. |
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| ⚫ | Dioxygenyl hexafluoroplatinate can be synthesized from the elements by the action of a mixture of [[oxygen]] and [[fluorine]] gas on [[platinum]] sponge at 450 °C.{{cite journal | volume = 115 | journal = [[J. Chem. Soc.]] | title = Fluorides of the Noble Metals. Part II. Dioxygenyl hexafluoroplatinate(V), {{chem|[O|2|]|+|[PtF|6|]|-}}. | first1 = Neil | last1 = Bartlett | authorlink1 = Neil Bartlett (chemist) | first2 = D. H. | last2 = Lohmann | year = 1962 | pages = 5253–5261 | doi=10.1039/jr9620005253}} It can also be prepared by the reaction of [[oxygen difluoride]] ({{chem|O|F|2}}) with [[platinum sponge]]. |
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:{{chem|OF|2}} + Pt → {{chem|Pt|F|4}} + {{chem|O|2}} |
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:T > 400 °C: 6 {{chem|OF|2}} + 2 Pt → 2 {{chem|O|2|Pt|F|6}} + {{chem|O|2}} |
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:{{chem|OF|2}} + 2 Pt → 2 {{chem|O|2|Pt|F|6}} + {{chem|O|2}} |
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:O2 |
:O2 + PtF6 → O2PtF6 |
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==Structure== |
==Structure== |
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Dioxygenyl hexafluoroplatinate(V) has a [[rhombohedral]] crystal structure at low temperatures, and a cubic structure at high temperatures, isomorphous to [[potassium hexafluoroplatinate(V)]], {{chem|K|Pt|F|6}}. Its ionic lattice is indicated by its insolubility in [[carbon tetrafluoride]]. In its cubic form, the {{chem|Pt|F|6|-}} octahedra are slightly compressed along the three-fold rotational axis, along which the long axis of the {{chem|[|O|2|]|+}} cations also lies. Each {{chem|O|2|+}} cation is surrounded by 12 fluorine atoms, 6 of which surround it in a puckered six-membered ring, and of the remaining 3 each belong to the two {{chem|Pt|F|6|-}} octahedra lying along the long axis of the cation. |
Dioxygenyl hexafluoroplatinate(V) has a [[rhombohedral]] crystal structure at low temperatures, and a cubic structure at high temperatures, isomorphous to [[potassium hexafluoroplatinate(V)]], {{chem|K|Pt|F|6}}. Its ionic lattice is indicated by its insolubility in [[carbon tetrafluoride]]. In its cubic form, the {{chem|Pt|F|6|-}} octahedra are slightly compressed along the three-fold rotational axis, along which the long axis of the {{chem|[|O|2|]|+}} cations also lies. Each {{chem|O|2|+}} cation is surrounded by 12 fluorine atoms, 6 of which surround it in a puckered six-membered ring, and of the remaining 3 each belong to the two {{chem|Pt|F|6|-}} octahedra lying along the long axis of the cation. |
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==Reactions== |
==Reactions== |
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Dioxygenyl hexafluoroplatinate(V) is a convenient route to prepare other platinum(V) compounds, such as potassium hexafluoroplatinate(V) via reaction with [[potassium fluoride]] in [[iodine pentafluoride]] ({{chem|I|F|5}}) solution{{cite book | title = Halogen Chemistry | chapter = Pentahalides of the Transition Metals | pages = 179–226 | volume = 3 | first1 = A. D. | last1 = Beveridge | first2 = H. C. | last2 = Clark | editor-first = Viktor | editor-last = Gutmann | publisher = [[Academic Press]] | year = 1967 | isbn = 9780323148474 | chapter-url = https://books.google.com/books?id=q0j8Imd8yQsC&pg=PA212}} in which [[iodine heptafluoride]] is produced: |
Dioxygenyl hexafluoroplatinate(V) is a convenient route to prepare other platinum(V) compounds, such as potassium hexafluoroplatinate(V) via reaction with [[potassium fluoride]] in [[iodine pentafluoride]] ({{chem|I|F|5}}) solution{{cite book | title = Halogen Chemistry | chapter = Pentahalides of the Transition Metals | pages = 179–226 | volume = 3 | first1 = A. D. | last1 = Beveridge | first2 = H. C. | last2 = Clark | editor-first = Viktor | editor-last = Gutmann | publisher = [[Academic Press]] | year = 1967 | isbn = 9780323148474 | chapter-url = https://books.google.com/books?id=q0j8Imd8yQsC&pg=PA212}} in which [[iodine heptafluoride]] is produced: |
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:2 |
:2 {{chem|O|2|Pt|F|6}} + 2 KF + {{chem|IF|5}} → 2 {{chem|K|Pt|F|6}} + 2 {{chem|O|2}} + {{chem|IF|7}} |
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==References== |
==References== |
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