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CAS No.: | 13774-85-1 |
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Name: | Xenonfluoride oxide (XeF4O), (SP-5-21)- (9CI) |
Article Data: | 22 |
Molecular Structure: | |
Formula: | F4O Xe |
Molecular Weight: | 223.283 |
Synonyms: | Xenonfluoride oxide (XeOF4) (7CI); Xenon fluoride oxide (XeF4O); Xenon monoxide tetrafluoride; Xenon oxide fluoride (XeOF4); Xenon oxyfluoride (XeOF4); Xenon oxytetrafluoride;Xenon tetrafluoride monoxide; Xenon tetrafluoride oxide |
PSA: | 17.07000 |
LogP: | 1.18120 |
fluorine
A
xenon hexafluoride
xenon oxide tetrafluoride
xenon tetrafluoride
Conditions | Yield |
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With NaF byproducts: CF4; NaF dried at 900°C, filled in HP-autoclave, Xe and F2 condensed at -196°C, mixt. warmed at 250°C for 1 d, excess of F2, XeF4, XeOF4 and CF4 removed in vac., Na2XeF8 (residue) warmed to 50-100°C, XeF6 recovered in vac.; | A 84% B n/a C n/a |
sodium nitrate
xenon hexafluoride
A
xenon dioxide difluoride
xenon oxide tetrafluoride
Conditions | Yield |
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byproducts: FNO2, Na2XeF8, NaXeF7; N2; mixt. prepd. at -196 °C; warmed to room temp.; then reaction at 70 °C for 10h;; cooled to -196 °C (vacuum); sepn. of volatile compounds on warmup to room temp. by fractional condensation; XeOF4 in -78 °C trap;; | A n/a B 82% C n/a |
Conditions | Yield |
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byproducts: HF; reactn. of XeF6 with air (satd. with H2O) in a flow apparatus until IR absorption of XeF6 decreases to 2% of the initial value and the total pressure reaches 600 Torr; gas mixt. (contg. XeF6 and XeOF4) is condensed into an U-tube at -78°C;; HF/air mixt. is pumped off at -78°C; warming to 20°C; further addn. of moist air; freezing of XeOF4; HF/air is pumped off;; | 80% |
In gas Ni vessel, condensation of H2O onto XeF6, storing at 20°C for 0.5 hours, then cooling to -78°C;; main amt. of HF is pumped off;; | |
byproducts: HF; |
Conditions | Yield |
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In neat (no solvent) byproducts: HF; H2O condensed in an evacd. Ni vessel above XeF6, warmed to room temp., allowed to stand for 4 h before being agitated (danger of explosion), allowed to remain at room temp. for another 8 h;; vac. disd. into a Kel-F tube contg. NaF; XeOF4 distd. from this storage vesel as required;; | |
In not given (inert atm.); hydrolysis of xenon compd.; Schumacher G.A., Schrobilgen G.J., Inorg. Chem. 1984, 23, 2923-2929; |
Conditions | Yield |
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further products by reactn. of XeOF4 with CaO;; |
Conditions | Yield |
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thermal synthesis (Xe:F2:O2=1:2:10) at about 600°C;; low yield;; |
Conditions | Yield |
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slow react. with liquefaction;; |
Conditions | Yield |
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react. of XeF6 (about 6g) with wall of quartz vessel in a few days at 50°C;; dry ice /trichloro ethylene bath; SiF4 is pumped off;; | |
byproducts: SiF4; reaction of XeF6 with quartz or glass; |
xenon hexafluoride
uranyl fluoride
A
uranium hexafluoride
xenon oxide tetrafluoride
Conditions | Yield |
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25°C; | |
25°C; |
caesium fluoride * xenon oxide tetrafluoride
xenon oxide tetrafluoride
Conditions | Yield |
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In neat (no solvent) in vacuum at 20°C, slow loss of XeOF4; in a stream of N2 (1atm), weight loss is observed only above 60°C;; |