Acid-base reactions of tungsten and uranium oxide fluorides in anhydrous hydrogen fluoride

Yasushi Katayama; Rika Hagiwara; Yasuhiko Ito

doi:10.1016/0022-1139(95)03260-K

Acid-base reactions of tungsten and uranium oxide fluorides in anhydrous hydrogen fluoride

Yasushi Katayama, Rika Hagiwara, Yasuhiko Ito

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The acid-base reactions of tungsten oxide tetrafluoride, WOF₄. and uranium dioxide difluoride, UO₂F₂, have been examined in anhydrous hydrogen fluoride (HF). WOF₄ reacts with silver(I and II) fluorides, AgF and AgF₂, to form complex salts, AgWOF₅, AgW₂O₂F₉ and AgFW₂O₂F₉. AgFW₂O₂F₉, which is also prepared by the reaction of AgW₂O₂F₉ and F₂ in HF, oxidizes elemental xenon to Xe^II in HF at room temperature. UO₂F₂ is a weak fluoro base and only forms salts with strong fluoro acids such as arsenic pentafluoride, AsF₅, in HF. The fluoro acidity of UO₂F₂ seems slightly stronger than that of HF, the reaction with AgF giving a 1:1 compound, AgUO₂F₃.

Original language	English
Pages (from-to)	89-95
Number of pages	7
Journal	Journal of Fluorine Chemistry
Volume	74
Issue number	1
DOIs	https://doi.org/10.1016/0022-1139(95)03260-K
Publication status	Published - 1995 Sept
Externally published	Yes

Keywords

Acid-base reactions
Anhydrous hydrogen fluoride
IR spectroscopy
Raman spectroscopy
Tungsten oxide fluorides
Uranium oxide fluorides

ASJC Scopus subject areas

Biochemistry
Environmental Chemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1016/0022-1139(95)03260-K

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title = "Acid-base reactions of tungsten and uranium oxide fluorides in anhydrous hydrogen fluoride",

abstract = "The acid-base reactions of tungsten oxide tetrafluoride, WOF4. and uranium dioxide difluoride, UO2F2, have been examined in anhydrous hydrogen fluoride (HF). WOF4 reacts with silver(I and II) fluorides, AgF and AgF2, to form complex salts, AgWOF5, AgW2O2F9 and AgFW2O2F9. AgFW2O2F9, which is also prepared by the reaction of AgW2O2F9 and F2 in HF, oxidizes elemental xenon to XeII in HF at room temperature. UO2F2 is a weak fluoro base and only forms salts with strong fluoro acids such as arsenic pentafluoride, AsF5, in HF. The fluoro acidity of UO2F2 seems slightly stronger than that of HF, the reaction with AgF giving a 1:1 compound, AgUO2F3.",

keywords = "Acid-base reactions, Anhydrous hydrogen fluoride, IR spectroscopy, Raman spectroscopy, Tungsten oxide fluorides, Uranium oxide fluorides",

author = "Yasushi Katayama and Rika Hagiwara and Yasuhiko Ito",

note = "Funding Information: The authors wish to thank the Ministry of Education, Science and Culture for financial support by a Grant-in-Aid for Scientific Research.T his work was also partially supported by the Kawasaki Steel 21st Century Foundation. One of the authors Yasushi Katayama, thanks the JapanSociety for the Promotion of Sciencef or JapaneseJ unior Scientists for the financial support.",

year = "1995",

month = sep,

doi = "10.1016/0022-1139(95)03260-K",

language = "English",

volume = "74",

pages = "89--95",

journal = "Journal of Fluorine Chemistry",

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T1 - Acid-base reactions of tungsten and uranium oxide fluorides in anhydrous hydrogen fluoride

AU - Katayama, Yasushi

AU - Hagiwara, Rika

AU - Ito, Yasuhiko

N1 - Funding Information: The authors wish to thank the Ministry of Education, Science and Culture for financial support by a Grant-in-Aid for Scientific Research.T his work was also partially supported by the Kawasaki Steel 21st Century Foundation. One of the authors Yasushi Katayama, thanks the JapanSociety for the Promotion of Sciencef or JapaneseJ unior Scientists for the financial support.

PY - 1995/9

Y1 - 1995/9

N2 - The acid-base reactions of tungsten oxide tetrafluoride, WOF4. and uranium dioxide difluoride, UO2F2, have been examined in anhydrous hydrogen fluoride (HF). WOF4 reacts with silver(I and II) fluorides, AgF and AgF2, to form complex salts, AgWOF5, AgW2O2F9 and AgFW2O2F9. AgFW2O2F9, which is also prepared by the reaction of AgW2O2F9 and F2 in HF, oxidizes elemental xenon to XeII in HF at room temperature. UO2F2 is a weak fluoro base and only forms salts with strong fluoro acids such as arsenic pentafluoride, AsF5, in HF. The fluoro acidity of UO2F2 seems slightly stronger than that of HF, the reaction with AgF giving a 1:1 compound, AgUO2F3.

AB - The acid-base reactions of tungsten oxide tetrafluoride, WOF4. and uranium dioxide difluoride, UO2F2, have been examined in anhydrous hydrogen fluoride (HF). WOF4 reacts with silver(I and II) fluorides, AgF and AgF2, to form complex salts, AgWOF5, AgW2O2F9 and AgFW2O2F9. AgFW2O2F9, which is also prepared by the reaction of AgW2O2F9 and F2 in HF, oxidizes elemental xenon to XeII in HF at room temperature. UO2F2 is a weak fluoro base and only forms salts with strong fluoro acids such as arsenic pentafluoride, AsF5, in HF. The fluoro acidity of UO2F2 seems slightly stronger than that of HF, the reaction with AgF giving a 1:1 compound, AgUO2F3.

KW - Acid-base reactions

KW - Anhydrous hydrogen fluoride

KW - IR spectroscopy

KW - Raman spectroscopy

KW - Tungsten oxide fluorides

KW - Uranium oxide fluorides

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JO - Journal of Fluorine Chemistry

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Acid-base reactions of tungsten and uranium oxide fluorides in anhydrous hydrogen fluoride

Abstract

Keywords

ASJC Scopus subject areas

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