Xenon dioxide
Names | |
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IUPAC name
xenon dioxide
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Identifiers | |
3D model (
JSmol ) |
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ChemSpider | |
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Properties | |
XeO2 | |
Molar mass | 163.29 g/mol |
Appearance | yellow solid[1] |
Structure | |
Bent | |
Related compounds | |
Related compounds
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Xenon trioxide Xenon tetroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Xenon dioxide, or xenon(IV) oxide, is a compound of xenon and oxygen with formula XeO2 which was synthesized in 2011. It is synthesized at 0 °C by hydrolysis of xenon tetrafluoride in aqueous sulfuric acid:[2]
Structure
XeO
2 has an extended (chain or network) structure in which xenon and oxygen have
In addition, the existence of an XeO2 molecule was predicted by an
Properties
XeO
2 is a yellow-orange solid.[4] It is an unstable compound, with a half-life of about two minutes, disproportionating into XeO
3 and xenon gas. Its structure and identity was confirmed by cooling it to −150 °C so that Raman spectroscopy could be performed before it decomposed.[2][1]
At -78 °C, the majority of XeO2 decomposed over a period of 72 hours, which was identified by the fading of the original yellow product to a pale yellow. Almost all yellow color indicating pure XeO2 disappeared over the span of 1 week.[2]
- 3 XeO2 → Xe + 2 XeO3
References
- ^ a b Tyler Irving (May 2011). "Xenon Dioxide May Solve One of Earth's Mysteries". L’Actualité chimique canadienne (Canadian Chemical News). Retrieved 2012-05-18.
- ^ PMID 21341650.
- .
- ^ Cotton, Simon (1 May 2011). "Xenon dioxide". Soundbite. Education in Chemistry. Vol. 48, no. 3. Royal Society of Chemistry. p. 69. Retrieved 2012-05-18.