Manganese trioxide fluoride: Difference between revisions
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'''Manganese trioxide fluoride''' is an [[inorganic compound]] with the formula {{chem2|MnO3F}}. A green diamagnetic liquid, the compound has no applications, but it is of some academic interest as a rare example of a trioxide fluoride. |
'''Manganese trioxide fluoride''' is an [[inorganic compound]] with the formula {{chem2|MnO3F}}. A green diamagnetic liquid, the compound has no applications, but it is of some academic interest as a rare example of a trioxide fluoride. |
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The compound was detected in the |
The compound was detected in the 1880s but was only purified and crystallized much more recently.<ref>{{cite journal |doi=10.1002/chem.202004759 |title=Permanganyl Fluoride: A Brief History of the Molecule MnO<sub>3</sub>F and of Those Who Cared for It |year=2021 |last1=Schmidbaur |first1=Hubert |last2=Schwarz |first2=W. H. Eugen |journal=Chemistry – A European Journal |volume=27 |issue=23 |pages=6848–6859 |pmid=33219726 |pmc=8247864 }}</ref> It can be prepared by [[fluorosulfuric acid]] and [[potassium permanganate]]: |
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:{{chem2|KMnO4 + 2HF -> MnO3F + KF + H2O}} |
:{{chem2|KMnO4 + 2HF -> MnO3F + KF + H2O}} |
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{{chem2|MnO3F}} crystallizes as a monomer, as confirmed by [[X-ray crystallography]]. The molecules are tetrahedral with Mn-O and Mn-F distances of 1.59 and 1.72 Å, respectively. |
{{chem2|MnO3F}} crystallizes as a monomer, as confirmed by [[X-ray crystallography]]. The molecules are tetrahedral with Mn-O and Mn-F distances of 1.59 and 1.72 Å, respectively. |
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In contrast with {{chem2|MnO3F}}, {{chem2|TcO3F}} and {{chem2|[[rhenium trioxide fluoride|ReO3F]]}} have more complex structures as solids. The Re compound crystallizes as chains or rings consisting of fluoride-bridge octahedra. The rhenium compound also forms stable adducts with [[Lewis base]]s.<ref>{{cite journal |doi=10.1002/zaac.200500239 |title=Preparation and Structure of Rhenium Fluoride Trioxide ReO<sub>3</sub>F, and the Polymorphism of Rhenium Trifluoride Dioxide, ReO<sub>2</sub>F<sub>3</sub> |year=2005 |last1=Supeł |first1=Joanna |last2=Marx |first2=Rupert |last3=Seppelt |first3=Konrad |journal=Zeitschrift für anorganische und allgemeine Chemie |volume=631 |issue=15 |pages=2979–2986 }}</ref> {{chem2|TcO3F}} crystallizes as dimers with [[bridging ligand|fluoride bridges]].<ref>{{cite journal |doi=10.1021/ic070333y |title=Technetium Fluoride Trioxide, TcO<sub>3</sub>F, Preparation and Properties |year=2007 |last1=Supeł |first1=Joanna |last2=Abram |first2=Ulrich |last3=Hagenbach |first3=Adelheid |last4=Seppelt |first4=Konrad |journal=Inorganic Chemistry |volume=46 |issue=14 |pages=5591–5595 |pmid=17547395 }}</ref> |
In contrast with {{chem2|MnO3F}}, {{chem2|TcO3F}} and {{chem2|[[rhenium trioxide fluoride|ReO3F]]}} have more complex structures as solids. The Re compound crystallizes as chains or rings consisting of fluoride-bridge octahedra. The rhenium compound also forms stable adducts with [[Lewis base]]s.<ref>{{cite journal |doi=10.1002/zaac.200500239 |title=Preparation and Structure of Rhenium Fluoride Trioxide ReO<sub>3</sub>F, and the Polymorphism of Rhenium Trifluoride Dioxide, ReO<sub>2</sub>F<sub>3</sub> |year=2005 |last1=Supeł |first1=Joanna |last2=Marx |first2=Rupert |last3=Seppelt |first3=Konrad |journal=Zeitschrift für anorganische und allgemeine Chemie |volume=631 |issue=15 |pages=2979–2986 }}</ref> {{chem2|TcO3F}} crystallizes as dimers with [[bridging ligand|fluoride bridges]].<ref>{{cite journal |doi=10.1021/ic070333y |title=Technetium Fluoride Trioxide, TcO<sub>3</sub>F, Preparation and Properties |year=2007 |last1=Supeł |first1=Joanna |last2=Abram |first2=Ulrich |last3=Hagenbach |first3=Adelheid |last4=Seppelt |first4=Konrad |journal=Inorganic Chemistry |volume=46 |issue=14 |pages=5591–5595 |pmid=17547395 }}</ref> |
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Revision as of 11:48, 18 June 2023
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| Identifiers | |
|---|---|
| Properties | |
| FMnO3 | |
| Molar mass | 121.933 g·mol−1 |
| Appearance | green liquid |
| Density | 6.042 g/cm3 |
| Melting point | −45 °C (−49 °F; 228 K) |
| Boiling point | decomposition above its melting point |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Manganese trioxide fluoride is an inorganic compound with the formula MnO3F. A green diamagnetic liquid, the compound has no applications, but it is of some academic interest as a rare example of a trioxide fluoride.
The compound was detected in the 1880s but was only purified and crystallized much more recently.[1] It can be prepared by fluorosulfuric acid and potassium permanganate:
- KMnO4 + 2HF → MnO3F + KF + H2O
MnO3F crystallizes as a monomer, as confirmed by X-ray crystallography. The molecules are tetrahedral with Mn-O and Mn-F distances of 1.59 and 1.72 Å, respectively.
In contrast with MnO3F, TcO3F and ReO3F have more complex structures as solids. The Re compound crystallizes as chains or rings consisting of fluoride-bridge octahedra. The rhenium compound also forms stable adducts with Lewis bases.[2] TcO3F crystallizes as dimers with fluoride bridges.[3]
References
- ^ Schmidbaur, Hubert; Schwarz, W. H. Eugen (2021). "Permanganyl Fluoride: A Brief History of the Molecule MnO3F and of Those Who Cared for It". Chemistry – A European Journal. 27 (23): 6848–6859. doi:10.1002/chem.202004759. PMC 8247864. PMID 33219726.
- ^ Supeł, Joanna; Marx, Rupert; Seppelt, Konrad (2005). "Preparation and Structure of Rhenium Fluoride Trioxide ReO3F, and the Polymorphism of Rhenium Trifluoride Dioxide, ReO2F3". Zeitschrift für anorganische und allgemeine Chemie. 631 (15): 2979–2986. doi:10.1002/zaac.200500239.
- ^ Supeł, Joanna; Abram, Ulrich; Hagenbach, Adelheid; Seppelt, Konrad (2007). "Technetium Fluoride Trioxide, TcO3F, Preparation and Properties". Inorganic Chemistry. 46 (14): 5591–5595. doi:10.1021/ic070333y. PMID 17547395.