Uranium pentafluoride
| Uranium pentafluoride | |
|---|---|
 α form |
 Monomer |
| Identifiers | |
| CAS number | 13775-07-0  |
| ChemSpider | 75545 |
| Jmol-3D images | {{#if:[U+5].[F-].[F-].[F-].[F-].[F-]|Image 1 |
| |
| |
| Properties | |
| Molecular formula | UF5 |
| Molar mass | 333.02 g/mol |
(verify) (what is:  /?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
| Infobox references | |
Uranium pentafluoride an inorganic chemical consisting of uranium and fluorine. The compound exists both as individual UF5 molecular entities and with extended order in several crystal-lattice forms. The monomer, formed by photolysis of uranium hexafluoride, has a square pyramidal geometry.[1] The α form is a linear coordination polymer consisting of chains in which one of the five fluoride atoms forms a bridge to the next uranium atom.[2] Uranium pentafluoride can be synthesized in the α form by reducing uranium hexafluoride with sulfur dioxide at 160 °C.[3] The β form, which gradually converts to the α form at 180 °C,[2] has a square antiprismatic lattice structure.[4]
References
- ↑ Onoe, J.; Nakamatsu, H.; Mukoyama, T.; Sekine, R.; Adachi, H.; Takeuchi, K. (1997). "Structure and Bond Nature of the UF5 Monomer". Inorg. Chem. 36 (9): 1934–1938. doi:10.1021/ic961237s.
- ↑ 2.0 2.1 Howard, C. J.; Taylor, J. C.; Waugh, A. B. (1982). "Crystallographic parameters in α-UF5 and U2F9 by multiphase refinement of high-resolution neutron powder data". Journal of Solid State Chemistry 45 (3): 396–398. Bibcode:1982JSSCh..45..396H. doi:10.1016/0022-4596(82)90185-2.
- ↑ Eller, P. G.; Larson, A. C.; Peterson, J. R.; Ensor, D. D.; Young, J. P. (1979). "Crystal structures of α-UF5 and U2F9 and spectral characterization of U2F9". Inorganica Chimica Acta 37 (2): 129–133. doi:10.1016/S0020-1693(00)95530-0.
- ↑ Taylor, J. C.; Waugh, A. B. (1980). "Neutron diffraction study of β-uranium pentafluoride between 77 and 403 K". Journal of Solid State Chemistry 35 (2): 137–147. Bibcode:1980JSSCh..35..137T. doi:10.1016/0022-4596(80)90485-5.
| ||||||||||||||||||||||||||||||