Tetramethylammonium pentafluoroxenate
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| Tetramethylammonium pentafluoroxenate | |
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| IUPAC name Tetramethylammonium pentafluoridoxenonate(−) | |
| Properties | |
| Molecular formula | N(CH3)4XeF5 |
| Molar mass | 300.4308 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 | |
Tetramethylammonium pentafluoroxenate is the chemical compound with the formula N(CH3)4XeF5. The XeF−
5 ion it contains was the first example of a planar pentagonal AX5E2 species.[1] It was prepared by the reaction of N(CH3)4F with xenon tetrafluoride, N(CH3)4F being chosen because it can be prepared in anhydrous form and is readily soluble in organic solvents).[1] The anion is planar, with the fluorine atoms in a slightly distorted pentagonal coordination (Xe-F bond lengths ranging from 197.9 - 203.4 pm and Xe-F bond angles ranging from 71.5 - 72.3 °).[1] Other salts have been prepared with sodium, caesium and rubidium, and vibrational spectra shows that these contain the same planar ion.[1]
References
- ↑ 1.0 1.1 1.2 1.3 Christe K. O., Curtis E. C., Dixon D. A., Mercier H. P.,. Sanders J. C. P, Schrobilgen G. J. (1991). "The pentafluoroxenate(IV) anion, XeF5−: the first example of a pentagonal planar AX5 species". J. Am. Chem. Soc. 113 (9): 3351–3361. doi:10.1021/ja00009a021.
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