Xenon difluoride tetrafluoride

Inert xenon actually forms many compounds, especially with highly electronegative fluorine. The AFf° values for xenon difluoride, tetrafluoride, and hexafluoride are —105, —284, and —402 kJ/mol, respectively. Find the average bond energy of the Xe—F bonds in each fluoride. 

IV) oxide sulfate (III) sulfate (III) sulfide Xenon difluoride hexafluoride tetrafluoride trioxide Ytterbium... 

Stable noble-gas compounds have no industrial uses as of this writing but are frequently utilized in laboratories as fluorinating and oxidizing agents. Xenon difluoride and xenon tetrafluoride are relatively mild oxidative fluorinating agents and have been used for the preparation of phosphoms, sulfur, tellurium. 

Polymer-bound phenyliodine difluoride, which also has been used as a reagent to add fluorine to alkenes, can be prepared by the addition of xenon difluoride to the polymer [134, 135 136] Methyl iodide is converted to trifluoro methyliodine difluoride by treatment with fluorine at -110 C [137] Perfluoro-alkyliodine tetrafluorides could be synthesized from the perfluoroalkyliodine difluorides and fluorine [138] or chlorine trifluoride [139] Perfluoroalkyl [140] and perfluoroaryl [141] iodides are oxidized to the corresponding iodine difluorides by chlorine trifluoride. 

The starting point for the synthesis of xenon compounds is the preparation of xenon difluoride, XeF2, and xenon tetrafluoride, XeF4, by heating a mixture of the elements to 400°C at 6 atm. At higher pressures, fluorination proceeds as far as xenon hexafluoride, XeFfi. All three fluorides are crystalline solids (Fig. 15.27). In the gas phase, all are molecular compounds. Solid xenon hexafluoride, however, is ionic, with a complex structure consisting of XeF< + cations bridged by F anions. 

Xenon difluoride (or the tetrafluoride, or their mixtures) could not be caused to detonate by impact. Xenon difluoride and xenon tetrafluoride both may cause explosion in contact with acetone, aluminium, pentacarbonyliron, styrene, polyethylene, lubricants, paper, sawdust, wool or other combustible materials. Their vigorous reactions with ethanol, potassium iodate or potassium permanganate are not explosive, however. 

In the preparation of xenon difluoride dioxide from caesium nitrate and xenon tetrafluoride oxide, the latter must always be used in excess to prevent formation of explosive xenon trioxide. 

Although uncontrolled reaction of xenon hexafluoride and moisture produces explosive xenon trioxide, controlled action by progressive addition of limited amounts of water vapour with agitation to a frozen solution of the hexafluoride in anhydrous hydrogen fluoride at —196° C to give xenon oxide tetrafluoride or xenon dioxide difluoride is safe [1], Controlled hydrolysis in solution in hydrogen fluoride is, however, described as hazardous [2],... 

In the reaction of the pentaoxide with xenon tetrafluoride oxide to give xenon difluoride dioxide and nitryl fluoride, the xenon tetrafluoride oxide must be used in excess to avoid formation of xenon trioxide, which forms a sensitive explosive mixture with xenon difluoride dioxide. 

It is a powerful explosive [1] produced when xenon tetrafluoride or xenon hexafluoride are exposed to moist air and hydrolysed. Some tetrafluoride is usually present in xenon difluoride, so the latter is potentially dangerous. Although safe to handle in small amounts in aqueous solution, great care must be taken to avoid solutions drying out, e.g. around ground stoppers [2], Full safety precautions have been discussed [2,3,4], Precautions necessary for use of aqueous solutions of the trioxide as an epoxidation reagent are detailed [5,6], A safe method of preparation,... 

Tungsten tetrabromide oxide, 0294 Undecaamminetetraruthenium dodecaoxide, 4598 Xenon difluoride dioxide, 4322 Xenon tetrafluoride oxide, 4346 Zinc ethylsulfinate, 1711... 

Krypton difluoride, 4313 Potassium hexaoxoxenonate-xenon trioxide, 4674 Tetrafluoroammonium hexafluoroxenate, 4386 Xenon difluoride dioxide, 4322 Xenon difluoride oxide, 4319 Xenon difluoride, 4332 Xenon hexafluoride, 4377 Xenon tetrafluoride, 4353 Xenon tetrafluoride oxide, 4346 Xenon tetraoxide, 4863 Xenon trioxide, 4857 Xenon(II) fluoride methanesulfonate, 0443 Xenon(II) fluoride perchlorate, 3977 Xenon(II) fluoride trifluoroacetate, 0634 Xenon(II) fluoride trifluoromethanesulfonate, 0356 Xenon(IV) hydroxide, 4533 Xenon(II) pentafluoroorthoselenate, 4382 Xenon(II) pentafluoroorthotellurate, 4383 Xenon(II) perchlorate, 4110 See Other NON-METAL HALIDES, NON-METAL OXIDES... 

O O In the early 1960s, Neil Bartlett, at the University of British Columbia, was the first person to synthesize compounds of the noble gas xenon. A number of noble gas compounds (such as XeF2, XeF4, XeFe, and XeOs) have since been synthesized. Consider the reaction of xenon difluoride with fluorine gas to produce xenon tetrafluoride. 

The relatively recently discovered compounds of the erstwhile inert gases have already been studied in systems with oxides of nitrogen. Johnston and Woolfolk232 reported the reaction rates of xenon difluoride and xenon tetrafluoride with nitric oxide in the temperature range 300-350°K and at pressures between 0.1 and 30 torr. The reactions were followed by a mass spectrometer, separated from the reaction cell by a pinhole. There were serious problems, both in carrying out the experiment and in analyzing the data, but the results seem reliable. In... 

Xenon difluoride dioxide, 4316 Xenon difluoride oxide, 4313 Xenon difluoride, 4326 Xenon hexafluoride, 4371 Xenon(II) fluoride methanesulfonate, 0442 Xenon(II) fluoride perchlorate, 3971 Xenon(II) fluoride trifluoroacetate, 0630 Xenon(II) fluoride trifluoromethanesulfonate, 0355 Xenon(II) pentafluoroorthoselenate, 4376 Xenon(II) pentafluoroorthotellurate, 4377 Xenon(IV) hydroxide, 4528 Xenon tetrafluoride oxide, 4340 Xenon tetrafluoride, 4347 Xenon tetraoxide, 4857 Xenon trioxide, 4851 Xenon, 4920 t mixo-Xylene, 2964 t m-Xylene, 2966 t o-Xylene, 2965 t p-Xylene, 2967... 

Xenon difluoride, 4326 Xenon difluoride oxide, 4313 Xenon hexafluoride, 4371 Xenon tetrafluoride, 4347 HALOBORANES N-HALOGEN COMPOUNDS HALOPHOSPHINES HALOSILANES PERFLUOROSILANES... 

Xenon Trioxide Difluoride and Xenon Dioxide Tetrafluoride... 

Possible interactions between xenon difluoride and xenon tetrafluoride molecules as a result of bond dipoles. The magnitude of x would be larger than that ofy, because the Xe atom is polarized in two directions (by two fluorine atoms) in the difluoride and in four directions (by four fluorine atoms) in the tetrafluoride. 

In chemical behavior similar to that of interhalogens, the xenon fluorides act as fluorinating agents in a wide variety of reactions. Xenon difluoride is a milder reagent than is the tetrafluoride or the hexafluoride. It readily reacts with olefins to add fluorine ... 

Ethene (1) reacts with either xenon difluoride or xenon tetrafluoride to give a mixture of... 

Fluorination of propene (2) with xenon difluoride leads to a mixture of 1,1-difluoropropane (46%), 2-fluoropropane (24%), 1,2-difluoropropane (12%). and 1,1-difluoroethane (9%), whereas fluorination with xenon tetrafluoride produces a mixture of 1,1-difluoropropane (65 %) and 1,2-difluoropropane (12%). ° ... 

The reaction of hexafluoropropene with xenon tetrafluoride gives octafluoropropane (3) in 94 % yield after 15 hours however, the reaction of xenon difluoride with hexafluoropropene... 

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