Molybdenum(V) fluoride
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| Names | |
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| IUPAC names
Molybdenum(V) fluoride
Molybdenum pentafluoride | |
| Identifiers | |
3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| F5Mo | |
| Molar mass | 190.94 g·mol−1 |
| Appearance | yellow solid |
| Density | 3.44 g/cm3 |
| Melting point | 66 °C (151 °F; 339 K) |
| Boiling point | 215.6 °C (420.1 °F; 488.8 K) |
| Thermochemistry | |
Heat capacity (C)
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96.6 J/mol·K |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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oxidizer, hydrolyzes to release HF |
| Flash point | Non-flammable |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Molybdenum(V) fluoride is an inorganic compound with the formula MoF5. It is a hygroscopic yellow solid. Like most pentafluorides, it exists as a tetramer.[1]
Production
Molybdenum(V) fluoride is produced by the reaction of molybdenum and molybdenum hexafluoride:[2]
- Mo + 5 MoF6 → 6 MoF5
About 120 °C, it disproportionates to the tetra- and hexafluoride:
- 2 MoF5 → MoF4 + MoF6
References
- ^ Edwards, A. J. (1969). "Crystal Structure of tungsten pentafluoride". J. Chem. Soc. A: 909. doi:10.1039/J19690000909.
- ^ T. J. Ouellette, C. T. Ratcliffe, D. W. A. Sharp, A. M. Steven (1972). "Molybdenum(V) Fluoride (Molybdenum pentalfluoride)". Inorganic Syntheses. 13: 146–150. doi:10.1002/9780470132449.ch28.
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