| 词条 | Nitrosonium octafluoroxenate(VI) |
| 释义 |
| Watchedfields = changed | verifiedrevid = 442017793 | ImageFile = 23535-ICSDstaggeredview.png | ImageAlt=A greenish-blue central atom surrounded by and bonded to eight yellowish-green atoms arranged in a square antiprismatic fashion. | ImageCaption = The square antiprismatic [XeF8]2− anion in (NO)2XeF8[1] | ImageSize = | IUPACName = Nitrosonium octafluoroxenate(VI) | OtherNames = |Section1={{Chembox Identifiers | CASNo = | PubChem = | SMILES = [N]#[O+].[N]#[O+].F[Xe-2](F)(F)(F)(F)(F)(F)[F]}} |Section2={{Chembox Properties | Formula = {{chem|(NO)|2|XeF|8}} | MolarMass = | Appearance = | Density = 3.354 g/cm³ | MeltingPt = | BoilingPt = | Solubility = Reacts}} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} }}Nitrosonium octafluoroxenate(VI) is a chemical compound of xenon with nitrogen, oxygen, and fluorine, having formula {{chem|(NO)|2|XeF|8}}. It is an ionic compound containing well-separated nitrosonium cations (NO+) and octafluoroxenate(VI) anions ({{chem|XeF|8|2-}}). The molecular geometry of the octafluoroxenate(VI) ion is square antiprismatic, having Xe–F bond lengths of 1.971 Å, 1.946 Å, 1.958 Å, 2.052 Å, and 2.099 Å.[1] It is synthesized by the reaction of xenon hexafluoride ({{chem|XeF|6}}) with nitrosyl fluoride (NOF):[2] {{chem|XeF|6}} + 2 NOF → {{chem|(NO)|2|XeF|8}} Other compounds containing the octafluoroxenate(VI) ion include its alkali metal salts, including Cs2XeF8 and Rb2XeF8, which are stable up to 400 °C.[3][4] References1. ^1 {{Cite journal | first3 = A.| first2 = H. | first4 = M.| title = Antiprismatic Coordination about Xenon: the Structure of Nitrosonium Octafluoroxenate(VI)| first1 = W.| last2 = Holloway| last3 = Coyle| volume = 173| month = | journal = Science| issue = 4003| pages = 1238–1239| issn = 0036-8075| doi = 10.1126/science.173.4003.1238| last4 = Williams| pmid = 17775218| last1 = Peterson| date = Sep 1971|bibcode = 1971Sci...173.1238P }} {{Xenon compounds}}{{Noble gas compounds}}{{inorganic-compound-stub}}2. ^{{cite book| title = Advanced Inorganic Chemistry| edition = 6th| author = Cotton| publisher = Wiley-India| year = 2007| isbn = 81-265-1338-1| page = 588}} 3. ^{{cite book| title = Comprehensive Inorganic Chemistry| first1 = Sulekh| last1 = Chandra| publisher = New Age International| year = 2004| isbn = 81-224-1512-1| page = 308}} 4. ^{{cite book| last1 = Holleman| first1 = A. F.| last2 = Wiberg,| first2 = E.| title = Inorganic Chemistry| publisher = Academic Press| location = San Diego| year = 2001| isbn = 0-12-352651-5}} 1 : Xenon compounds |
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