High Temperature Fluorination Reactions of Inorganic Substances with Bromine Trifluoride Addition Compounds<sup>1a,1b</sup>

Sheft, I.; Martin, Arthur F.; Katz, Joseph

doi:10.1021/ja01589a014

Cited by 52 publications

(23 citation statements)

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“…Its X-ray powder pattern could be indexed in the orthorhombic crystal system, space group Immm. The cell parameters are a = 5.6413 (8), b = 6.8312(9), c = 12.2687(17) Å, V = 472.79(11) Å 3 at 293 K, which are similar to the ones of CsAuF 4 obtained by Müller and co-workers [reported: a = 5.486(6), b = 6.589(6), c = 12.655(12) Å, V = 457.44 Å 3 ]. [18] By Rietveld refinement using the atom positions of the latter as starting values, a satisfactorily agreement could be obtained (Table 1, Figure 3).…”

Section: Transformation Of Csbr 2 F 7 (1) To Csbrf 4 (2)mentioning

confidence: 99%

“…[3] To the best of our knowledge LiBrF 4 is yet unknown. [4][5][6] The heavier congeners of this alkali metal were prepared and X-ray diffraction data indicate that MBrF 4 (M = Na, [7] K, [7][8][9][10][11][12][13] Rb, [7,14,15] NO [12] ) are isostructural and crystallize in the tetrago-ric reactions of CsF with BrF 3 , the compound cesium tetrafluoridobromate(III), CsBrF 4 (2), was obtained as a colorless powder. Compound 2 can also be obtained from compound 1 by evacuation.…”

Section: Introductionmentioning

confidence: 99%

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On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr₂F₇ and the Monobromate CsBrF₄

Ivlev

Woidy

Sobolev

et al. 2013

Zeitschrift anorg allge chemie

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Alkali and alkaline earth metal tetrafluorobromates M I BrF 4 , M II (BrF 4 ) 2 (M I = Na-Cs, M II = Sr, Ba) can be synthesized from the respective fluorides and BrF 3 . By the reaction of CsF with an excess of BrF 3 , the compound cesium tetrafluoridobromate(III) bromine trifluoride (1/1), CsBr 2 F 7 (1), was obtained in the form of a colorless powder and as single crystals. Shown by X-ray diffraction on single crystals, its Br 2 F 7 anion is neither planar, nor is its Br-μ-F-Br unit linear, as previously deduced by Raman spectroscopy. In stoichiomet-* Prof. Dr. R. Ostvald

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Section: Transformation Of Csbr 2 F 7 (1) To Csbrf 4 (2)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr₂F₇ and the Monobromate CsBrF₄

Ivlev

Woidy

Sobolev

et al. 2013

Zeitschrift anorg allge chemie

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“…These are stable and tractable solids, but the presence of relatively heav}^ atoms detracts severely from calculated performance (99,100).…”

Section: Advances In Fluorine Chemical Technologymentioning

confidence: 99%

Recent Advances in Fluorine Chemistry and Technology

Gall¹

1959

ARS Journal

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“…CIF3 and F2 have been used in getting oxygen from silicates (18), and BrF3 has been found useful in getting O2 from a variety of oxides (19) . Sheft et al (20) have developed procedures for the direct analysis of oxygen in some organic and inorganic compounds using KBrF, and BrF2SbF e as fluorinating agents. These methods may lend themselves to use also in the determination of oxygen isotope ratios in some compounds.…”

Section: Techniquesmentioning

confidence: 99%

Applications of Oxygen Isotopes in Chemical Studies

Taube¹

1956

Annu. Rev. Nucl. Sci.

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The choice of the general subject of this article requires no apology, but the choice of the specific material to fit to the space allotted does. The limita tions and research interests of the reviewer were a governing factor in mak ing the selection, but also the consideration entered that the effects of the major omissions are tempered by other recent reviews in which much of the material omitted is discussed. Thus the important work in geochemistry involving oxygen isotopes is discussed in excellent reviews by Dole (I), and more recently by Craig & Boata (2). The work on heterogenous systems is discussed more completely in the article by Dole. It is hoped in this connec tion that a general article on the application of isotopes in the study of heterogeneous catalysis, induding work with oxygen isotopes, will be forth coming. In the subjects chosen for review, an effort has been made to be com plete ; and earlier literature as well as the more recent has been referred to. When work which is within the scope of the subject matter is not cited, it is because of oversight or because the work is dealt with in a more general article by the same author.The present article stresses the application of oxygen isotopes to the study of chemical phenomena in homogeneous solution. Much of the work exploiting oxygen isotope effects has been done for such systems. For reac tions of oxygen-containing substances in an oxide-labile solvent such as water, isotope studies can answer important questions which no other method can answer as directly; and they have been of great help in defining the nature of the solvent and of the substances dissolved in it, and in exposing the mechanisms of reactions in solution. TECHNIQUESIn the work reviewed, mainly the oxygen isotopes of mass 18 and 16 come into question. The mass spectrometric method of measuring isotope ratios has almost completely supplanted that depending on the determination of density differences in water. With care, commercial instruments can measure differences to a precision of 1 part in 1000 in O2 or CO2 of normal oxygen isotopic composition. With specially designed instruments (3), a precision of one part in approximately 10,000 on CO2 can be attained.When the oxygen is available as water, an accurate method (4) of isotopic assay is equilibration of CO2 with the H20, followed by measurement of the isotopic ratio in the CO2• Dostrovsky & Klein (5) have described the high temperature equilibration of CO2 and H20, and have derived an equation 1 The survey of literature pertaining to this review was completed in January, 1956.

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High Temperature Fluorination Reactions of Inorganic Substances with Bromine Trifluoride Addition Compounds^1a,1b

Cited by 52 publications

References 0 publications

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr₂F₇ and the Monobromate CsBrF₄

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr₂F₇ and the Monobromate CsBrF₄

Recent Advances in Fluorine Chemistry and Technology

Applications of Oxygen Isotopes in Chemical Studies

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High Temperature Fluorination Reactions of Inorganic Substances with Bromine Trifluoride Addition Compounds1a,1b

Cited by 52 publications

References 0 publications

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr2F7 and the Monobromate CsBrF4

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr2F7 and the Monobromate CsBrF4

Recent Advances in Fluorine Chemistry and Technology

Applications of Oxygen Isotopes in Chemical Studies

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High Temperature Fluorination Reactions of Inorganic Substances with Bromine Trifluoride Addition Compounds^1a,1b

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr₂F₇ and the Monobromate CsBrF₄

On Tetrafluorobromates(III): Crystal Structures of the Dibromate CsBr₂F₇ and the Monobromate CsBrF₄