Difference between revisions of "Manganese tetrafluoride"
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==Preparation== | ==Preparation== | ||
| − | Manganese tetrafluoride was first unequivocally prepared{{#tag:ref|Reports of the preparation of MnF<sub>4</sub> date back to the nineteenth century,<ref>{{citation | first = W. H. | last = Melville | title = Contribution towards the History of the Fluorides of Manganese | journal = Proc. Am. Acad. Arts Sci. | volume = 12 | year = 1876 | pages = 228–34 | url = http://www.jstor.org/stable/25138452}}.</ref> but are inconsistent with the now-known chemistry of the genuine compound. However, the more stable hexafluoromanganate(IV) compounds were prepared as early as 1899.|group=Note}} in by the reaction of [[manganese(II) fluoride]] (or other Mn<sup>II</sup> compounds) with a stream of [[fluorine]] gas at 550 °C: the MnF<sub>4</sub> sublimes into the gas stream and condenses onto a [[cold finger]].<ref>{{citation | title = Mangantetrafluorid, MnF<sub>4</sub> | first1 = Rudolf | last1 = Hoppe | first2 = Wolfgang | last2 = Dähne | first3 = Wilhelm | last3 = Klemm | journal = Naturwissenschaften | volume = 48 | issue = 11 | page = 429 | doi = 10.1007/BF00621676}}.</ref> | + | Manganese tetrafluoride was first unequivocally prepared{{#tag:ref|Reports of the preparation of MnF<sub>4</sub> date back to the nineteenth century,<ref>{{citation | first = W. H. | last = Melville | title = Contribution towards the History of the Fluorides of Manganese | journal = Proc. Am. Acad. Arts Sci. | volume = 12 | year = 1876 | pages = 228–34 | url = http://www.jstor.org/stable/25138452}}.</ref> but are inconsistent with the now-known chemistry of the genuine compound. However, the more stable hexafluoromanganate(IV) compounds were prepared as early as 1899.<ref>{{citation | first1 = R. F. | last1 = Weinland | first2 = O. | last2 = Lauenstein | journal = Z. Anorg. Allg. Chem. | year = 1899 | volume = 20 | page = 40}}.</ref>|group=Note}} in by the reaction of [[manganese(II) fluoride]] (or other Mn<sup>II</sup> compounds) with a stream of [[fluorine]] gas at 550 °C: the MnF<sub>4</sub> sublimes into the gas stream and condenses onto a [[cold finger]].<ref>{{citation | title = Mangantetrafluorid, MnF<sub>4</sub> | first1 = Rudolf | last1 = Hoppe | first2 = Wolfgang | last2 = Dähne | first3 = Wilhelm | last3 = Klemm | journal = Naturwissenschaften | volume = 48 | issue = 11 | page = 429 | doi = 10.1007/BF00621676}}.</ref> |
==Notes and references== | ==Notes and references== | ||
Revision as of 06:21, 12 September 2010
| Manganese tetrafluoride | |
|---|---|
| IUPAC name | manganese tetrafluoride |
| Other names | manganese(IV) fluoride |
| Identifiers | |
| InChI | InChI=1/4FH.Mn/h4*1H;/q;;;;+4/p-4 |
| Standard InChI | InChI=1S/4FH.Mn/h4*1H;/q;;;;+4/p-4 |
| Standard InChIKey | KWKYNMDHPVYLQQ-UHFFFAOYSA-J |
| CAS number | [] |
| Properties | |
| Chemical formula | MnF4 |
| Molar mass | 130.93 g mol−1 |
| Appearance | blue solid |
| Melting point |
70 °C decomp. |
| Solubility in water | reacts violently |
| Related compounds | |
| Other cations | Manganese(II) fluoride Manganese(III) fluoride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Manganese tetrafluoride, MnF4, is the highest fluoride of manganese. It is used as a powerful oxidizing agent and as a means of purifying elemental fluorine.[1][2]
Contents
Preparation
Manganese tetrafluoride was first unequivocally prepared[Note 1] in by the reaction of manganese(II) fluoride (or other MnII compounds) with a stream of fluorine gas at 550 °C: the MnF4 sublimes into the gas stream and condenses onto a cold finger.[5]
Notes and references
Notes
References
- ↑ Torisu, Junichi; Oka, Masakazu; Kuznetsov, Andrey Sergeyevich, et al. (Astor Electronics/Showa Denko) Method of manufacturing manganese tetrafluoride. WO PCT Appl. 2006033480, published 30 March 2006.
- ↑ Seseke-Koyro, Ulrich; Garcia-Juan, Placido; Palsherm, Stefan, et al. (Solvay Fluor) Process for the purification of elemental fluorine. WO PCT Appl. 2009074562, published 18 June 2009.
- ↑ Melville, W. H. Contribution towards the History of the Fluorides of Manganese. Proc. Am. Acad. Arts Sci. 1876, 12, 228–34, <http://www.jstor.org/stable/25138452>.
- ↑ Weinland, R. F.; Lauenstein, O. Z. Anorg. Allg. Chem. 1899, 20, 40.
- ↑ Hoppe, Rudolf; Dähne, Wolfgang; Klemm, Wilhelm Mangantetrafluorid, MnF4. Naturwissenschaften, 48 (11), 429. DOI: 10.1007/BF00621676.
Further reading
- Roesky, H.; Glemser, O. A New Preparation of Manganese Tetrafluoride. Angew. Chem., Int. Ed. Engl. 1963, 2 (10), 626. DOI: 10.1002/anie.196306262.
- Gubkina, N. I.; Sokolov, Sergey V.; Krylov, E. I. Fluorides of High Oxidising Power and Their Application to the Preparation of Organic Fluorine Compounds. Russ. Chem. Rev. 1966, 35 (12), 930–41. DOI: 10.1070/RC1966v035n12ABEH001550.
- Hoppe, R.; Müller, B.; Burgess, J.; Peacock, R. D.; Sherry, R. The enthalpy of formation of manganese tetrafluoride. J. Fluorine Chem. 1980, 16 (2), 189–91. DOI: 10.1016/S0022-1139(00)82393-3.
- Christe, Karl O. Chemical synthesis of elemental fluorine. Inorg. Chem. 1986, 25 (21), 3721–24. DOI: 10.1021/ic00241a001.
- Seseke-Koyro, Ulrich; Garcia-Juan, Placido; Palsherm, Stefan, et al. (Solvay Fluor) Method for preparing manganese tetrafluoride. WO PCT Appl. 2009/074560, published 18 June 2009.
External links
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See also the corresponding article on Wikipedia. |
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