38091-68-8Relevant articles and documents
Preparation, NMR spectra and reactivity of pentafluorophenyltetrafluorosilicates M+-
Frohn, H. J.,Bardin, V. V.
, p. 155 - 160 (1995)
Pentafluorophenyltetrafluorosilicates M+ - were obtained from pentafluorophenyltrifluorosilane C6F5SiF3 and ionic fluorides MF (M=K, Cs, Me4N) in anhydrous MeCN or diglyme.The reactivity of M+ - toward electrophiles was studied.Keywords: Pentafluorophenyl; Fluorosilicate anion; Desilylation
The formation of oxygen-containing perfluorocyclohexadien-1-yliodine tetrafluorides
Frohn, Hermann-Josef,Bardin, Vadim V.
, p. 18 - 21 (2006)
The electrophilic oxygenation of pentafluorophenyl iodo compounds C 6F5IFn with iodine in different valencies (n = 0, 2, 4) using XeF2-H2O in HF allowed access to new organoiodine(V) compounds, namely isomeric oxopentafluorocyclohexadien-1- yliodine tetrafluorides, C6(O)F5IF4.
Xenon(IV)-carbon bond of [C6F5XeF2]+; Structural characterization and bonding of [C6F5XeF2][BF4], [C6F5XeF2][BF4]·2HF, and [C6F5XeF2][BF4]· n NCCH 3 (n = 1, 2); And the fluorinating properties of [C6F5XeF2][BF4]
Koppe, Karsten,Haner, Jamie,Mercier, Hlne P. A.,Frohn, Hermann-J.,Schrobilgen, Gary J.
supporting information, p. 11640 - 11661 (2015/01/16)
The [C6F5XeF2]+ cation is the only example of a XeIV-C bond, which had only been previously characterized as its [BF4]- salt in solution by multi-NMR spectroscopy. The [BF4]- salt and its new CH3CN and HF solvates, [C6F5XeF2][BF4]·1.5CH3CN and [C6F5XeF2][BF4]·2HF, have now been synthesized and fully characterized in the solid state by lowerature, single-crystal X-ray diffraction and Raman spectroscopy. Crystalline [C6F5XeF2][BF4] and [C6F5XeF2][BF4]·1.5CH3CN were obtained from CH3CN/CH2Cl2 solvent mixtures, and [C6F5XeF2][BF4]·2HF was obtained from anhydrous HF (aHF), where [C6F5XeF2][BF4]·1.5CH3CN is comprised of an equimolar mixture of [C6F5XeF2][BF4]·CH3CN and [C6F5XeF2][BF4]·2CH3CN. The crystal structures show that the [C6F5XeF2]+ cation has two short contacts with the F atoms of [BF4]- or with the F or N atoms of the solvent molecules, HF and CH3CN. The lowerature solid-state Raman spectra of [C6F5XeF2][BF4] and C6F5IF2 were assigned with the aid of quantum-chemical calculations. The bonding in [C6F5XeF2]+, C6F5IF2, [C6F5XeF2][BF4], [C6F5XeF2][BF4]·CH3CN, [C6F5XeF2][BF4]·2CH3CN, and [C6F5XeF2][BF4]·2HF was assessed with the aid of natural bond orbital analyses and molecular orbital calculations. The 129Xe, 19F, and 11B NMR spectra of [C6F5XeF2][BF4] in aHF are reported and compared with the 19F NMR spectrum of C6F5IF2, and all previously unreported J(129Xe-19F) and J(19F-19F) couplings were determined. The long-term solution stabilities of [C6F5XeF2][BF4] were investigated by 19F NMR spectroscopy and the oxidative fluorinating properties of [C6F5XeF2][BF4] were demonstrated by studies of its reactivity with K[C6F5BF3], Pn(C6F5)3 (Pn = P, As, or Bi), and C6F5X (X = Br or I).
Preparation of polyfluorinated cycloalk-1-enyl-, alk-1-enyl-, and alkyliodine tetrafluorides using XeF2 in the presence of appropriate Lewis acids as fluorooxidant
Frohn, Hermann Josef,Bardin, Vadim V.
, p. 1036 - 1043 (2007/10/03)
Previously unknown polyfluorocyclohexenyl, and acyclic perfluoroalkenyliodine tetrafluorides were prepared in high yields. Perfluorocyclohex-1-enyliodine tetrafluoride was obtained from pentafluoroiodobenzene using XeF2-NbF5 in aHF.
Electrophilic oxygenation with XeF2 - H2O in hydrogen fluoride, Part 2. Electrophilic oxygenation of pentafluorobenzene derivatives C6F5X
Frohn,Bardin
, p. 1015 - 1021 (2007/10/03)
Electrophilic oxygenation of polyfluorobenzenes C6F5X (X = F, Cl, Br, H, CF3, NH3+, NMe3+, OH and OCH2CF3) with XeF2 and H2O in HF leads to the formation of polyfluorinated 1,4-cyclohexadienones. Pentafluoroiodobenzene is converted into C6F5IF2 and C6F5IF4, whereas [C6F5N2]+ [NbF6]- is unreactive towards this new type of electrophilic oxygenation.
