Acid properties of the oxytetrafluorides of molybdenum, tungsten, and uranium toward some inorganic fluoride ion donors

Bougon, R.; Huy, T. Bui; Charpin, P.

doi:10.1021/ic50150a016

Cited by 45 publications

(48 citation statements)

References 34 publications

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“…However, the authors observed bands at 910, 935, 967, 973, and 983 cm –1 in the spectrum of NO[Mo 2 O 2 F 9 ] which do not belong to the [Mo 2 O 2 F 9 ] – anion. They assigned the band at 983 cm –1 to NO[MoOF 5 ] but gave no further discussion on the occurrence of the remaining bands …”

Section: Resultsmentioning

confidence: 99%

“…These studies shed much light on the complex equilibria and solution chemistry MoOF 4 can exhibit . However, despite the potential of MoOF 4 to give rise to new chemical species, very little literature exists in which MoOF 4 was used as a starting reagent in chemical reactions . Therefore, the goal of this work was to expand the current knowledge of the chemical behavior of MoOF 4 in aHF solutions by reacting it with the alkali metal fluorides.…”

Section: Introductionmentioning

confidence: 99%

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Lewis Acidic Behavior of MoOF₄ towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

et al. 2019

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Previous studies performed on samples of MoOF4 dissolved in anhydrous hydrogen fluoride (aHF) solutions have indicated the presence of the [Mo2O2F9]– anion. Building upon this earlier work, MoOF4, and MF (M = Li–Cs) were dissolved in aHF solutions to produce M[Mo2O2F9] (M = Li–Cs) salts. Structural analysis of the obtained compounds was performed using single‐crystal X‐ray diffraction. This study provides the first single crystal structures for the [MoVI2O2F9]– anion. Additionally, IR and Raman spectroscopy were used to characterize each salt. These spectra were compared to calculated ones for the solid‐state structure of each salt using the DFT‐PBE0 density functional method. The calculated spectra were used to give band assignments in the experimentally obtained spectra.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lewis Acidic Behavior of MoOF₄ towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

et al. 2019

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“…Ces rksultats sont a rapprocher dc ceux trouves pour IOF, d'aprts les spectres vibrationnels (21) et la rmn du I9F (24). L'ion UOF,-dans CsUOF, solide a une repartition du nuage electronique differente de celle trouvee pour les ions analogues tels que TeOF,-(18), MoOF,-et WOF,- (2,19,20), la charge formelle negative serait donc essentiellement repartie dans I'ion UOF,-, sur les quatre fluors du plan equatorial. Ces differences de ripartition sont peut &tre attribuables aux cffets des orbitales de I'uranlum.…”

Section: Determinatio~l Des Constantes D E Forceunclassified

Synthèse et caractérisation des oxypentafluorouranates(VI) NH₄UOF₅, KUOF₅, RbUOF₅ et CsUOF₅

Joubert¹,

Bougon²,

Gaudreau³

1978

Can. J. Chem.

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Chem. 56,1874Chem. 56, (1978.The oxypentafluoroirranates(V1) MUOF,, where M = NH,, K , R b , Cs, have been synthetized from reaction of UOF, with the animoniu~n or corresponding alkali metal fluoride in liquid SO,. According to X-ray diffraction, Raman and infrared spectroscopy, and from an isoniorphism with the corresponding hexafluorouranates(V) MUFG, two different environ~nents around the ilranii~m atom are observed. In CsUOF, the five fluorine atoms a n d the oxygen around the i~ranium result in a pseudo-octahedral surrounding whereas for the other complexes (M = NH,, K, Rb) cach uranium is surrounded by eight light atoms forming a dodecahedron. In this structure the dodecahedra are linked together by fluorine atoms t o form infinite chains. The UOF,-ion has been characterized by vibrational spectroscopy in the solid state. The proposed assignment, which was made with the assumption of a C,, symmetry of the UOF,-ion, was confirmed by a force constant calculation. From these data and contrary to the values reported for comparable oxypentafluoroanions, the axial fluorine is found to be less ionic than the equatorial ones. Introduction L'ttude des oxypentafluorouranates(V1) MUOF, (M = NO, NH,, K) que nous avions abordte prtctdemment (1,2) a t t t approfondie avec les composCs oh M dtsigne NH,, K, Rb, Cs.

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“…Observed frequencies with their assignments are summarized in Table 1. Detailed analyses on the vibrational spectra of both EMIm + [40,[42][43][44][45] and WOF 5 À [41, [46][47][48] were made in previous studies and assignment of EMIm + in Table 1 is mainly based on the report by Katsyuba et al [42]. WOF 5 À possesses five W-F single bond and one W O double bond, exhibiting a pseudo octahedral shape (C 4v ) in free environment [49].…”

Section: Resultsmentioning

confidence: 99%

A new room temperature ionic liquid of oxyfluorometallate anion: 1-Ethyl-3-methylimidazolium oxypentafluorotungstate (EMImWOF5)

Matsumoto

Hagiwara

2005

Journal of Fluorine Chemistry

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Acid properties of the oxytetrafluorides of molybdenum, tungsten, and uranium toward some inorganic fluoride ion donors

Cited by 45 publications

References 34 publications

Lewis Acidic Behavior of MoOF₄ towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

Lewis Acidic Behavior of MoOF₄ towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

Synthèse et caractérisation des oxypentafluorouranates(VI) NH₄UOF₅, KUOF₅, RbUOF₅ et CsUOF₅

A new room temperature ionic liquid of oxyfluorometallate anion: 1-Ethyl-3-methylimidazolium oxypentafluorotungstate (EMImWOF5)

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Acid properties of the oxytetrafluorides of molybdenum, tungsten, and uranium toward some inorganic fluoride ion donors

Cited by 45 publications

References 34 publications

Lewis Acidic Behavior of MoOF4 towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

Lewis Acidic Behavior of MoOF4 towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

Synthèse et caractérisation des oxypentafluorouranates(VI) NH4UOF5, KUOF5, RbUOF5 et CsUOF5

A new room temperature ionic liquid of oxyfluorometallate anion: 1-Ethyl-3-methylimidazolium oxypentafluorotungstate (EMImWOF5)

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Lewis Acidic Behavior of MoOF₄ towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

Lewis Acidic Behavior of MoOF₄ towards the Alkali Metal Fluorides in Anhydrous Hydrogen Fluoride Solutions

Synthèse et caractérisation des oxypentafluorouranates(VI) NH₄UOF₅, KUOF₅, RbUOF₅ et CsUOF₅