Technetium pentafluoride is a binary inorganic chemical compound of technetium metal and fluorine with the chemical formula TcF
5.[1][2][3][4]
| Names | |
|---|---|
| Other names
Technetium(V) fluoride
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| F5Tc | |
| Molar mass | 193 g·mol−1 |
| Appearance | yellow crystals |
| Melting point | 50 °C (122 °F; 323 K) |
| reacts with water | |
| Structure | |
| orthorhombic | |
| Related compounds | |
Related compounds
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Rhenium pentafluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
editThe compound can be synthesised by heating of technetium powder in a jet of fluorine diluted with nitrogen:
- 2Tc + 5F2 → 2TcF5
Another way to prepare it is the effect of iodine on technetium hexafluoride solution in iodine pentafluoride:[5]
- 2TcF6 + I2 → 2TcF5 + 2IF
Physical properties
editTechnetium pentafluoride forms yellow crystals[6] of orthorhombic crystal system.[7] It reacts with water, and is volatile.
Chemical properties
editThe compound is hydrolyzed by water, disproportionating to more stable technetium compounds:
- 3TcF5 + 8H2O → HTcO4 + 2TcO2 + 15HF
References
edit- ^ "WebElements Periodic Table » Technetium » technetium pentafluoride". webelements.com. Retrieved 19 April 2023.
- ^ Gutmann, Viktor (2 December 2012). Halogen Chemistry. Elsevier. p. 197. ISBN 978-0-323-14847-4. Retrieved 19 April 2023.
- ^ Schwochau, Klaus (21 November 2008). Technetium: Chemistry and Radiopharmaceutical Applications. John Wiley & Sons. p. 113. ISBN 978-3-527-61337-3. Retrieved 19 April 2023.
- ^ "Some physical properties of technetium pentafluoride". Journal of Inorganic and Nuclear Chemistry. 28: 231–232. 1 January 1976. doi:10.1016/0022-1902(76)80635-5. ISSN 0022-1902. Retrieved 19 April 2023.
- ^ Schwochau, Klaus (21 November 2008). Technetium: Chemistry and Radiopharmaceutical Applications. John Wiley & Sons. p. 114. ISBN 978-3-527-61337-3. Retrieved 19 April 2023.
- ^ Lide, David R. (29 June 2004). CRC Handbook of Chemistry and Physics, 85th Edition. CRC Press. p. 4-88. ISBN 978-0-8493-0485-9. Retrieved 19 April 2023.
- ^ Kemmitt, R. D. W.; Peacock, R. D. (26 January 2016). The Chemistry of Manganese, Technetium and Rhenium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 889. ISBN 978-1-4831-8762-4. Retrieved 19 April 2023.