Fluorosulfonic Acid Research Articles

Chloryl compounds. Part II. Chloryl hexafluoroarsenate and chloryl fluoride

The infrared and Raman spectra of chloryl hexafluoroarsenate have been obtained. The observed vibrations have been interpreted in terms of an ionic compound ClO2+AsF6−, where strong cation–anion interaction results in a symmetry lowering of the AsF6− ion. The compound together with chloryl fluoride produces the chloronium cation ClO2+(solv) in solution of fluorosulfuric acid. The solvolysis of FClO2 is studied by conductometry and 19F nuclear magnetic resonance (n.m.r.) in order to elucidate the observed anion–cation interaction for ClO2AsF6 more fully. 19F n.m.r. studies of FClO2 and related molecules have been used to discuss the bonding in chloronium compounds.

Fluorine-19 nuclear magnetic resonance investigations of complexes of antimony pentafluoride. II. Reactions of antimony pentafluoride with water, sulfuric acid, and fluorosulfuric acid

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFluorine-19 nuclear magnetic resonance investigations of complexes of antimony pentafluoride. II. Reactions of antimony pentafluoride with water, sulfuric acid, and fluorosulfuric acidPhilip A. W. Dean and R. J. GillespieCite this: J. Am. Chem. Soc. 1969, 91, 26, 7264–7269Publication Date (Print):December 1, 1969Publication History Published online1 May 2002Published inissue 1 December 1969https://doi.org/10.1021/ja01054a011RIGHTS & PERMISSIONSArticle Views89Altmetric-Citations12LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (666 KB) Get e-Alerts Get e-Alerts

Hydrogen-bond studies. XXXVI. Crystal structure of the 1:1 addition of acetic acid with fluorosulfuric acid

Hydrogen-bond studies. XXXVI. Crystal structure of the 1:1 addition of acetic acid with fluorosulfuric acid

Electrical conductivity studies of fluorosulfuric acid and tetramethylammonium fluorosulfate in nitrobenzene

Electrical conductivity data for solutions of tetramethylammonium fluorosulfate and fluorosulfuric acid in nitrobenzene are reported. The dissociation constant of the tetramethylammonium salt is 2.0 × 10−2 and the mobility of the fluorosulfate ion is 21.4. Although the conductivity data for solutions of fluorosulfuric acid could not be treated rigorously, it is shown that in dilute solutions, fluorosulfuric acid undergoes rather weak dissociation with a dissociation constant estimated to be less than 6 × 10−6. This result is contrasted with earlier work which showed that nitrobenzene is fully protonated and dissociation into ions is complete when fluorosulfuric acid forms the bulk solvent.

Selenium tetrafluoride adducts. I. Trifluoroselenium fluorosulfate

The structure of the adduct between selenium tetrafluoride and sulfur trioxide in the solid state, in the molten state, and in solution has been investigated using infrared, Raman, nuclear magnetic resonance spectroscopy, conductivity measurements in fluorosulfuric acid and nitrobenzene, and cryoscopic measurements in nitrobenzene. The data can be best interpreted in terms of a polymeric bridged fluorosulfate structure for the solid and the melt, which is broken down in solution to form mainly a dimeric species.

Solvolysis of ethyl tosylate in fluorosulfuric acid

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvolysis of ethyl tosylate in fluorosulfuric acidPhilip C. Myhre and Elizabeth EvansCite this: J. Am. Chem. Soc. 1969, 91, 20, 5641–5644Publication Date (Print):September 1, 1969Publication History Published online1 May 2002Published inissue 1 September 1969https://doi.org/10.1021/ja01048a039RIGHTS & PERMISSIONSArticle Views52Altmetric-Citations14LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (502 KB) Get e-Alerts Get e-Alerts

Solvolysis of primary tosylates in fluorosulfuric acid

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvolysis of primary tosylates in fluorosulfuric acidArthur F. Diaz, I. Lazdins Reich, and Saul WinsteinCite this: J. Am. Chem. Soc. 1969, 91, 20, 5637–5639Publication Date (Print):September 1, 1969Publication History Published online1 May 2002Published inissue 1 September 1969https://doi.org/10.1021/ja01048a037RIGHTS & PERMISSIONSArticle Views55Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (371 KB) Get e-Alerts Get e-Alerts

Hydrates of fluorosulphuric acid

Hydrates of fluorosulphuric acid

Dehydration of fluorosulphuric acid

Dehydration of fluorosulphuric acid

Fluorosulfuric acid solvent system. VII. The behavior of some extremely weak bases in the superacid system fluorosulfuric acid- antimony pentafluoride-sulfur trioxide

Fluorosulfuric acid solvent system. VII. The behavior of some extremely weak bases in the superacid system fluorosulfuric acid- antimony pentafluoride-sulfur trioxide

Hexahalocyclopentadienes. I. A reinvestigation of the reaction of hexachlorocyclopentadiene with fluoro- and chlorosulfonic acids

The reaction of hexachlorocyclopentadiene with chlorosulfonic acid has been reinvestigated and the product found by spectral methods to be the chlorosulfate ester of undecachloropentacyclo[5.3.0.02,6.03,9−.04,8]decan-5-ol. With fluorosulfonic acid, the analogous fluorosulfate ester is formed and not octachloro-3a,4,7,7a-tetrahydro-4-7-methanoindene-1,8-dione as reported by McBee and Newcomer. A mechanism is proposed for the reaction.

The resonance Raman spectrum of the I 2+ ion

The resonance Raman spectrum of the I 2 + ion [ϵ(6400 Å) = 2600] was observed in solution in fluorosulfuric acid, oleum, and antimony pentafluoride using 6328 Å and 6118 He Ne laser excitation. Spectra showing at least four overtones were obtained under suitable conditions. The vibrational frequency of the I 2 + ion is 238 cm −1.

Polarography of sulfur dioxide (sulfite) in aqueous hydrofluoric acid

A well-formed polarographic wave exists for sulfur dioxide (sulfite) in aqueous hydrofluoric acid at a half-wave potential ( E 1 2 ) of about -0.4 V vs. S.C.E. The characteristics of the wave are similar to those of the wave for sulfite in aqueous solutions of hydrochloric acid and of nitric acid. The relation of sulfite concentration ( C) to diffusion current ( i d) is linear, and the wave is reproducible. Polarography in aqueous hydrofluoric acid media is indicated to be a suitable method for the detection and direct determination of sulfur dioxide. Possible significant applications of the method are to determine contaminative sulfur dioxide in hydrogen fluoride gas, in reagent-grade hydrofluoric acid and fluorosulfuric acid, and in the atmosphere.

Acrilamide and N,N-dimethylacrylamide complexes. II. N-protonation and N-bonding to some transition metal perchlorates and tetrafluouroborates

Simple molecular orbital calculations were carried out on acrylamide (AA) and N,N-dimethylacrylamide (DAA), the results indicating that molecules of lower energy are formed upon coordination through N rather than O. Protonation studies in FSO 3H by nmr show that both AA and DAA are N-protonated, in agreement with the m.o. calculations. Complexes of some first row transition metal perchlorates and tetraflouroborates exhibit attachment through nitrogen for the AA but O-coordination for the DAA molecules. Steric factors are invoked to explain the different modes of bonding.

Protonenresonanzspektren von Pteridinen (VI). Mono‐ und Dikationen von 2‐Amino‐4‐oxo‐3, 4‐dihydropteridinen

AbstractProton NMR. spectra of 18 pteridines have been measured in strongly acidic solutions. In trifluoroacidic acid mono‐cations are formed whereas in fluorosulfonic acid double protonation occurs. For the first time di‐cations of pteridines are described, and the structures of these species are determined by NMR. and UV. data. The chemical shifts of the NH2 protons in the mono‐cations and of the methyl protons in the mono‐ and di‐cations follow linear correlations with the basic pKa values. From NMR. variable temperature measurements the energy barrier to internal rotation in the amidinium system has been ddtermined for both cations. The results are discussed with particular regard to the structure of the mono‐and di‐cations.

Protonation of hexamethyl Dewar benzene and hexamethylprismane in fluorosulfuric acid - antimony pentafluoride - sulfur dioxide

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProtonation of hexamethyl Dewar benzene and hexamethylprismane in fluorosulfuric acid - antimony pentafluoride - sulfur dioxideLeo A. Paquette, Grant R. Krow, J. Martin Bollinger, and George A. OlahCite this: J. Am. Chem. Soc. 1968, 90, 25, 7147–7149Publication Date (Print):December 1, 1968Publication History Published online1 May 2002Published inissue 1 December 1968https://doi.org/10.1021/ja01027a060RIGHTS & PERMISSIONSArticle Views119Altmetric-Citations24LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (370 KB) Get e-Alerts Get e-Alerts

Nuclear magnetic resonance spectra of some protonated benzophenones

Protonated 2,2′-dimethylbenzophenone (in HSO 3FSbF 5) shows at low temperature two methyl signals in the NMR spectrum. For some asymmetrically ortho-methyl substituted benzophenones two protonated isomers are found in HSO 3FSbF 5 at sufficiently low temperatures (−60°C). The configuration of these isomers is established.

Cations and oxycations of iodine. V. Formation of the I42+ cation in fluorosulfuric acid

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCations and oxycations of iodine. V. Formation of the I42+ cation in fluorosulfuric acidRonald J. Gillespie, J. B. Milne, and M. J. MortonCite this: Inorg. Chem. 1968, 7, 11, 2221–2225Publication Date (Print):November 1, 1968Publication History Published online1 May 2002Published inissue 1 November 1968https://doi.org/10.1021/ic50069a009RIGHTS & PERMISSIONSArticle Views116Altmetric-Citations25LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (477 KB) Get e-Alerts Get e-Alerts

The chlorosulfuric acid solvent system. Part II. The solutes SeCl4 and TeCl4; evidence for the formation of the SeCl3+ and TeCl3+ ions

From the results of electrical conductivity measurements on solutions in chlorosulfuric acid and the Raman spectra of solutions in chlorosulfuric acid (and fluorosulfuric acid) it is shown that SeCl4 and TeCl4 ionize quantitatively in these strong acid solutions to give the SeCl3+ and TeCl3+ cations.By comparison of the spectra with the vibrational spectra of solid SeCl4 and solid TeCl4, reported by other workers, it is suggested that the solids contain covalent MCl4 molecules rather than the ionic species MCl3+•Cl−, suggested previously.

Thermochemistry of fluorine compounds. Part I. Reaction calorimetry in fluorosulphuric acid

Some applications of fluorosulphuric acid as a calorimetric medium are outlined. The heats of formation of potassium, sodium, cupric, nitrosonium, and nitronium fluorosulphates were measured in it, and of nitrosonium hydrogen sulphate and disulphate in alkaline hypochlorite solutions. The regularities in heats of formation between perchlorates, hydrogen sulphates, and fluorosulphates of the same cations are correlated by heat cycles. The proximity of values for the latter pairs follows from the isoelectronic structure of their ions. Heats of protonation of water and organic bases in fluorosulphuric acid are approximately related to ionisation in the solvent. Values for the enthalpies and free energies of other ionic fluorosulphates can be estimated from heat cycles or by comparison with hydrogen sulphates. The stability of unknown fluorosulphates are predicted.