13693-09-9

Basic information

• Product Name: XENON HEXAFLUORIDE
• Synonyms: XENON HEXAFLUORIDE;NISTC13693099;Hexafluoroxenon
• CAS NO: 13693-09-9
• Molecular Formula: F₆Xe
• Molecular Weight: 245.2834192
• Mol File: 13693-09-9.mol
• Article Data: 8

Chemical Properties

• Melting Point: 49.48°
• Boiling Point: bp 75.57°
• Flash Point: °C
• Appearance: /colorless monoclinic crystals
• Density: d24.4(solid) 3.411; d55.2(liq) 3.173: Schreiner et al., J. Chem
• Water Solubility: hydrolyzed in H2O, forming XeOF4 and XeO3 [MER06]
• CAS DataBase Reference: XENON HEXAFLUORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: XENON HEXAFLUORIDE(13693-09-9)
• EPA Substance Registry System: XENON HEXAFLUORIDE(13693-09-9)

Safety Data

• Hazardous Substances Data: 13693-09-9(Hazardous Substances Data)

Usage

Chemical Properties

colorless solid; has greenish yellow vapor; monoclinic, a = 0.933 nm, b = 1.096 nm, c = 0.895 nm; enthalpy of sublimation 59.12 kJ/mol; very strong oxidizing agent; preparation: reaction between Xe and excess F2 at 250°C [DOU83] [MER06] [KIR78]

InChI:InChI=1/F6Xe/c1-7(2,3,4,5)6

Upstream product

• 36509-16-7 xenon(II)fluoromanganate(IV) 
• 13709-36-9 xenon difluoride 
• 7782-41-4 fluorine 
• 13709-61-0 xenon tetrafluoride 
• 19033-05-7 rubidium heptafluoroxenonate (VI) 
• 7664-39-3 hydrogen fluoride 
• 13774-85-1 xenon oxide tetrafluoride 
• 7439-89-6 iron 
• 20506-49-4 2 xenon hexafluoride * AsF₅ 
• 19033-04-6 caesium heptafluoroxenonate (VI) 
• 7783-44-0 dioxygen difluoride 

Downstream Products

• 13478-20-1 trifluorophosphoric acid 
• 13776-58-4 xenon trioxide 
• 7664-39-3 hydrogen fluoride 
• 13765-26-9 gadolinium(III) fluoride 
• 13709-42-7 neodymium(III) fluoride 
• 13709-38-1 lanthanum(III) fluoride 
• 13774-85-1 xenon oxide tetrafluoride 
• 7787-71-5 bromine trifluoride 
• 122270-70-6 XeF₅⁽¹⁺⁾*AuF₄^(1-)=XeF₅AuF₄ 
• 10022-50-1 nitrylfluoride 
• 13774-85-1 xenon oxide tetrafluoride 
• 12191-01-4 caesium fluoride * xenon oxide tetrafluoride 
• 19033-04-6 caesium heptafluoroxenonate (VI) 
• 65014-03-1 Cs⁽¹⁺⁾*XeO₂F₃^(1-)=CsXeO₂F₃ 

Related news

Raman study of molecular dynamics of inorganic fluoroxidizers in nonaqueous solutions: Part 4. Xenon tetrafluoride and XENON HEXAFLUORIDE (cas 13693-09-9) in hydrogen fluoride09/24/2019

Raman spectra of XeF4 and XeF6 in the nonaqueous HF solutions at various concentrations and vibrational spectra of the [XeF5]+ cation in the solid state and in the HF solutions over a wide range of vibrational frequencies have been studied. The assignments of the observed vibrational bands of th...detailed

Reactions of xenon difluoride and XENON HEXAFLUORIDE (cas 13693-09-9) with some hydrazinium and ammonium fluorouranates09/09/2019

The reactions of some hydrazinium fluorouranates and some ammonium fluorouranates with excess xenon difluoride or xenon hexafluoride were studied.The reactions between hydrazinium fluorouranates and xenon difluoride proceed via ammonium fluorouranates to binary metal fluorides, with the uranium ...detailed

The structure of XENON HEXAFLUORIDE (cas 13693-09-9) in the solid state09/06/2019

According to single crystal X-ray diffraction, neutron powder diffraction, solid state MAS NMR data, and differential scanning calorimetry, XeF6 exists in at least six different modifications. Three of them are formed at temperatures above room temperature, one exists at room temperature, while ...detailed

Relevant articles and documents

Synthesis and crystal structure of (Xe2F11+)2NiF6 2-

(Xe2F11+)2NiF6 2- has been prepared by the reaction between nickel difluoride, krypton difluoride, and xenon hexafluoride in anhydrous hydrogen fluoride. (Xe2F11+)2NiF6 2- crystallizes in the monoclinic space group I2/a with a = 17.477 (5) ?, b = 5.384 (6) ?, c = 21.300 (8) ?, β = 102.83 (3)°, V = 1954.2 ?3, Z = 4, and dc = 3.792 g cm-3. A structure determination using three-dimensional Mo Kα X-ray data resulted in conventional R and Rw factors of 0.070 and 0.094, respectively, for 1355 unique reflections for which I > 3σ(I). The anion NiF62- is essentially octahedral; Ni-F distances range from 1.77 (1) to 1.79 (1) ?. The Xe2Fu+ ion consists of two XeF5 groups bridged by an additional common fluorine atom. The bridge bond lengths are 2.35 (1) and 2.21 (1) ? with a bridge angle of 140.3 (6)°. (Xe2F11+)2NiF6 2- represents the first known crystal structure of a compound with two Xe2F11+ cations.

The xenon-fluorine system

Equilibrium constants have been obtained in the Xe-F2 system in the temperature range 250-500°. The data show that only three binary fluorides, XeF2, XeF4, and XeF6, are present. There is no evidence for the existence of XeF8 at 250° and up to 500 atm of F2. A preparation of pure XeF6 is described. A molecular weight determination, some infrared measurements, and vapor pressure data obtained with this sample are reported. Values for the thermodynamic properties of formation of XeF2, XeF4, and XeF6 are derived from the equilibrium constant data. The average value of the two missing vibrational modes of XeF4 is evaluated to be 246 ± 10 cm-1 from an analysis of the equilibrium constant and molecular data. Thermodynamic properties of XeF2 and XeF4 are calculated from molecular data. The value of S° for XeF4 at 25° is 75.6 cal mole-1 deg-1, in agreement with a value of 75.3 cal mole-1 deg-1 calculated from calorimetric data and the heat of sublimation. A number of molecular models for XeF6 are examined in terms of their consistency with the equilibrium constant data. A definite choice among the various models is not possible, but the analysis favors a low symmetry for XeF6. Values of S° for XeF6 at 25° are derived for each model and may be useful to help determine the symmetry of XeF6 when calorimetric data become available. The average bond energy of XeF2 is 31.0 kcal and that of XeF4 is 30.9 kcal. For XeF6 the average bond energy is 29.7 kcal, so that the average energy for forming the last two bonds in XeF6 is 27.3 kcal.

Stable Chloro- and Bromoxenate Cage Anions; [X3(XeO3)3]3- and [X4(XeO3)4]4- (X = Cl or Br)

The number of isolable compounds which contain different noble-gas-element bonds is limited for xenon and even more so for krypton. Examples of Xe-Cl bonds are rare, and prior to this work, no Xe-Br bonded compound had been isolated in macroscopic quantities. The syntheses, isolation, and characterization of the first compounds to contain Xe-Br bonds and their chlorine analogues are described in the present work. The reactions of XeO3 with [N(CH3)4]Br and [N(C2H5)4]Br have provided two bromoxenate salts, [N(C2H5)4]3[Br3(XeO3)3] and [N(CH3)4]4[Br4(XeO3)4], in which the cage anions have Xe-Br bond lengths that range from 3.0838(3) to 3.3181(8) ?. The isostructural chloroxenate anions (Xe-Cl bond lengths, 2.9316(2) to 3.101(4) ?) were synthesized by analogy with their bromine analogues. The bromo- and chloroxenate salts are stable in the atmosphere at room temperature and were characterized in the solid state by Raman spectroscopy and low-temperature single-crystal X-ray diffraction, and in the gas phase by quantum-chemical calculations. They are the only known examples of cage anions that contain a noble-gas element. The Xe-Br and Xe-Cl bonds are very weakly covalent and can be viewed as σ-hole interactions, similar to those encountered in halogen bonding. However, the halogen atoms in these cases are valence electron lone pair donors, and the σ?Xe-O orbitals are lone pair acceptors.