Academic literature on the topic 'Oxonium salts'

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Journal articles on the topic "Oxonium salts"

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Bennett, Trystan, Alexander J. Falcinella, Reuben J. White, et al. "The effect of counter ions on the far-infrared spectra of tris(triphenylphosphinegold)oxonium dimer salts." RSC Advances 5, no. 91 (2015): 74499–505. http://dx.doi.org/10.1039/c5ra11599j.

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The far-infrared spectra of two tris(triphenylphosphinegold)oxonium dimer salts in the 50–800 cm<sup>−1</sup> region were recorded using synchrotron-based IR radiation, and comprehensively assigned utilising density functional theory calculations.
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Oliver, Katherine W., Steven J. Rettig, Robert C. Thompson, James Trotter, and Shihua Xia. "Synthesis of perfluorodiphenylphosphinic acid and its potassium and oxonium salts; crystal structure of oxonium perfluorodiphenylphosphinate." Journal of Fluorine Chemistry 83, no. 1 (1997): 47–50. http://dx.doi.org/10.1016/s0022-1139(96)03562-2.

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Smith, Owen, Mihai V. Popescu, Madeleine J. Hindson, Robert S. Paton, Jonathan W. Burton, and Martin D. Smith. "Control of stereogenic oxygen in a helically chiral oxonium ion." Nature 615, no. 7952 (2023): 430–35. http://dx.doi.org/10.1038/s41586-023-05719-z.

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AbstractThe control of tetrahedral carbon stereocentres remains a focus of modern synthetic chemistry and is enabled by their configurational stability. By contrast, trisubstituted nitrogen1, phosphorus2 and sulfur compounds3 undergo pyramidal inversion, a fundamental and well-recognized stereochemical phenomenon that is widely exploited4. However, the stereochemistry of oxonium ions—compounds bearing three substituents on a positively charged oxygen atom—is poorly developed and there are few applications of oxonium ions in synthesis beyond their existence as reactive intermediates5,6. There a
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Minkwitz, Rolf, Stefan Schneider, and Hans Preut. "Formaldehyde in Super Acids: A Succession of Products from Carbenium through Oxonium Ion to Hydroxymethyl(methylidene)oxonium Salts." Angewandte Chemie International Edition 37, no. 4 (1998): 494–96. http://dx.doi.org/10.1002/(sici)1521-3773(19980302)37:4<494::aid-anie494>3.0.co;2-2.

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Mootz, Dietrich, and Angelika Merschenz-Quack. "Zur Kenntnis der hochsten Hydrate der Schwefelsaure: Bildung und Struktur von H2SO4 ·6,5 H2O und H2SO4 · 8 H2O [1] / On the Highest Hydrates of Sulfuric Acid: Formation and Structure of H2SO4-6.5 H2O and H2SO4 · 8 H2O [1]." Zeitschrift für Naturforschung B 42, no. 10 (1987): 1231–36. http://dx.doi.org/10.1515/znb-1987-1004.

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Abstract The phase diagram of the system sulfuric acid-water in the range 80-100 mol % H20 was reinvestigated by low-temperature DTA and X-ray powder diffraction. The results are compared with other studies in the literature. The crystal structures of the hydrates H2SO4 · 6.5 H2O. melting incongruently at -54 °C. and H2SO4 · SH2O (metastable) were determined to be those of oxonium salts. (H5O2)(H7O1)SO4 ·1.5 H2O and (H5O2)2SO4 · 4 H2O, respectively.
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Mathieson, Trevor, Annette Schier, and Hubert Schmidbaur. "Tris[(triphenylphosphine)gold(I)]oxonium Dihydrogentrifluoride as the Product of an Attempted Preparation of [(Triphenylphosphine)gold(I)] Fluoride." Zeitschrift für Naturforschung B 55, no. 11 (2000): 1000–1004. http://dx.doi.org/10.1515/znb-2000-1102.

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The reaction of equivalent quantities of (triphenylphosphine)gold chloride and silver fluoride in CH2Cl2/MeOH gives tris[(triphenylphosphine)gold(I)]oxonium dihydrogentrifluoride in good yield. This product is formed through the action of water in the reaction medium. Crystals of {[(Ph3P)Au)3O}- [H2F3]- 1.5 CH2CI2 (monoclinic, space group P21/c, Z = 4) contain the cations as hexanuclear dimers with short intra- and intermolecular Au-Au contacts. The structural details are similar to those of related salts with different anions. The [H2F3P anion is V-shaped with one symmetrical and one unsymmet
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Angermaier, Klaus, and Hubert Schmidbaur. "Preparation and Structure of Poly(gold)telluronium Salts." Zeitschrift für Naturforschung B 51, no. 6 (1996): 879–82. http://dx.doi.org/10.1515/znb-1996-0619.

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Abstract Tris[(triphenylphosphine)gold(I)]telluronium tetrafluoroborate (1) was prepared from the corresponding oxonium salt and bis(t-butyldimethylsilyl)tellurium in dichloromethane at -78°C. The product forms yellow crystals, thermally stable to 125°C. It was identified by standard analytical and spectroscopic techniques, including a single crystal X-ray diffraction study. In the crystal lattice, the cations form tellurium-capped triangles of gold, which are associated into dimers through short intermolecular Au -Au contacts, resembling those in the corresponding sulfur and selenium compound
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Daub, Michael, Karolina Kazmierczak, Henning A. Höppe, and Harald Hillebrecht. "The Borosulfate Story Goes on-From Alkali and Oxonium Salts to Polyacids." Chemistry - A European Journal 19, no. 50 (2013): 16954–62. http://dx.doi.org/10.1002/chem.201303012.

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Daub, Michael, Karolina Kazmierczak, Henning A. Hoeppe, and Harald Hillebrecht. "ChemInform Abstract: The Borosulfate Story Goes on - From Alkali and Oxonium Salts to Polyacids." ChemInform 45, no. 12 (2014): no. http://dx.doi.org/10.1002/chin.201412011.

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Mootz, Dietrich, and Michael Wiebcke. "Fluorides and fluoro acids. 10. Crystal structures of acid hydrates and oxonium salts. 23. Crystal structure of the low-temperature form of oxonium hexafluoroarsenate(V)." Inorganic Chemistry 25, no. 17 (1986): 3095–97. http://dx.doi.org/10.1021/ic00237a034.

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Book chapters on the topic "Oxonium salts"

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Cicchi, S., and F. M. Cordero. "With Oxonium Salts." In Three Carbon-Heteroatom Bonds: Amides and Derivatives; Peptides; Lactams. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-022-00338.

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"Product Class 6: Oxonium Salts." In Category 5, Compounds with One Saturated Carbon Heteroatom Bond, edited by Forsyth. Georg Thieme Verlag, 2008. http://dx.doi.org/10.1055/sos-sd-037-00408.

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Schmidbaur, H., and A. Schier. "Via Gold(I) Oxonium Salts." In Compounds of Groups 12 and 11 (Zn, Cd, Hg, Cu, Ag, Au). Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-003-00462.

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Riande, Evaristo, and Julio Guzmán. "Poly(1,3-dioxepane)." In Polymer Data Handbook. Oxford University PressNew York, NY, 2009. http://dx.doi.org/10.1093/oso/9780195181012.003.0093.

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Abstract Major Applications None known Properties of Special Interest None known Preparative Techniques Cationic polymerization of 1,3-dioxepane in solution or in bulk at temperatures normally lower than 25◦C. Initiators: Lewis acids, oxonium salts, etc.
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Cicchi, S., and F. M. Cordero. "Reaction of Oxonium Salts with Secondary Amines." In Three Carbon-Heteroatom Bonds: Amides and Derivatives; Peptides; Lactams. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-022-00345.

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Riande, Evaristo, and Julio Guzmán. "Poly(1,3-dioxolane)." In Polymer Data Handbook. Oxford University PressNew York, NY, 2009. http://dx.doi.org/10.1093/oso/9780195181012.003.0094.

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Abstract Major Applications None known. Stabilizer of Delrin by copolymerization with trioxane. Properties of Special Interest Possible use as a modifier for elastomers. Preparative Techniques Cationic polymerization of 1,3-dioxolane in solution or in bulk at temperatures normally lower than 25-C. Initiators: Lewis acids, oxonium salts, etc.
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West, Frederick G., and J. Stephen Clark. "Ammonium, oxonium and sulfonium ylides." In Nitrogen, Oxygen and Sulfur Ylide Chemistry. Oxford University PressOxford, 2002. http://dx.doi.org/10.1093/oso/9780198500179.003.0002.

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Abstract Generation of ammonium ylides from tertiary amines and metallocarbenes offers several advantages over other methods. In contrast to stepwise approaches involving initial N-quaternization followed by either deprotonation or desilylation, the carbenoid method furnishes the desired ylide intermediates directly. Moreover, there is no ambiguity as to the site of ylide formation, whereas deprotonation of quaternary ammonium salts may occur at more than one site. On the other hand, carbene-based methods lead to chemoselectivity concerns, as addition to heteroatom lone pairs is only one of ma
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Spitzner, D. "1-Aminopyridinium Compounds from Oxonium Salts and Hydrazides." In Six-Membered Hetarenes with One Nitrogen or Phosphorus Atom. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-015-00450.

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Schmidbaur, H., and A. Schier. "Auration of Ketones Using Halo(phosphine)gold(I) or Oxonium Salts." In Compounds of Groups 12 and 11 (Zn, Cd, Hg, Cu, Ag, Au). Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-003-00478.

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Theopold, K. H., A. Mommertz, and B. A. Salisbury. "Hydride Abstraction with Oxonium Salt." In Compounds of Groups 7-3 (Mn..., Cr..., V..., Ti..., Sc..., La..., Ac...). Georg Thieme Verlag KG, 2003. http://dx.doi.org/10.1055/sos-sd-002-00258.

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Reports on the topic "Oxonium salts"

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Hegge, Joachim, Berthoid Hoge, Jeffrey A. Sheehy, Karl O. Christe, and Rolf Minkwitz. Synthesis and Characterization of the First Examples of Perfluoroalkyl Substituted Trialkyl-Oxonium Salts, (CH3)2OCF3(+)Sb2F11(-) and (CH3)2OCF(CF3)2(+) Sb2F11(-). Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada409720.

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