Gallium (I) fluoride
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-fluorid.png)
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| The triple bond of gallium monofluoride (Lewis formula). |
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| General | ||||||||||
| Surname | Gallium (I) fluoride | |||||||||
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| Molecular formula | GaF | |||||||||
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| properties | ||||||||||
| Molar mass | 88.721 g mol −1 | |||||||||
| Physical state |
(is only formed in the gas phase) |
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| Thermodynamic properties | ||||||||||
| ΔH f 0 |
−251.9 kJ mol −1 (monohalide, gas phase) |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||
Gallium (I) fluoride is a chemical compound of the element gallium , which is only stable above 1000 ° C (in the gas phase ). This belongs to the group of halides .
properties
Gallium is found in gallium monohalides (also called gallylene) in the + I oxidation state . Gallium (I) compounds are highly unstable and are quickly oxidized to gallium (III) compounds .
Structure and evidence
Galium fluoride is a molecule with a triple bond. It can be formed at high temperatures and detected using high resolution continuum molecular absorption spectrometry .
Formation and decay
Molecules are formed around 1000 ° C by comproportioning . If the temperature drops, disproportionation to gallium and gallium trifluoride occurs immediately .
Possible educational reactions
- 2 Ga + GaF 3 3 GaF (g.)
- 2 Ga + 2 HF 2 GaF (g.) + H 2 (g.)
further reading
- Entry to gallium monofluoride . In: P. J. Linstrom, W. G. Mallard (Eds.): NIST Chemistry WebBook, NIST Standard Reference Database Number 69 . National Institute of Standards and Technology , Gaithersburg MD
- Gmelin: gallium, indium, thallium , syst. No. 36, 37, 38 .
Individual evidence
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ A b c d A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , pp. 1185-1193.
- ↑ Gleisner, Heike: The determination of the non-metal fluorine with High-Resolution-Continuum Source-Molecular Absorption Spectrometry (dissertation) Digital Library Thuringia. P. 54 and 55. September 14, 2011. Retrieved July 11, 2013.