593-53-3Relevant articles and documents
Nagase et al.
, p. 834,835, 837 (1965)
Cullis,Baddiel
, p. 5449 (1961)
Cramer et al.
, p. 643 (1973)
Sangster,Thynne
, p. 2110 (1969)
Synthesis and characterization of tetramethylammonium trifluorosulfate
Hohenstein, Christian,Kadzimirsz, Daniel,Ludwig, Ralf,Kornath, Andreas
, p. 925 - 929 (2011)
[Me4N]+[SO2F3]-, the first example of a [SO2F3]- salt, has been prepared from Me4NF and SO2F2. The colorless, microcrystalline solid was characterized by its infrared and Raman spectra. The trigonal bipyramidal structure of C2v symmetry of the [SO 2F3]- anion is predicted by ab initio calculations. Two oxygen atoms with d(SO)=143.2pm and one fluorine atom with d(SF)=157.9pm occupy the equatorial plane. The two fluorine atoms in the axial position with d(SF)=168.5pm are repulsed by the two oxygen atoms forming a bent axis with (FaxSFax)=165.2°. Copyright
Reaction of Fluorine Atoms with Alkyl Iodides: A Possible Observation of the Walden Inversion in the Gas Phase
Venkitachalam, T. V.,Das, P.,Bersohn, R.
, p. 7452 - 7453 (1983)
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Observation of the Nucleophilic Displacement (SN2) Reaction F-+CH3Br→CH3F + Br- Induced by Dissociative Electron Capture in Binary van der Waals Clusters
Lehmann, Lars,Matejcik, Stefan,Illenberger, Eugen
, p. 287 - 290 (1997)
We report on the SN2 reaction F- + CH3Br→FCH3 + Br- in binary clusters composed of CH3Br and C2F6 in a crossed electron/molecular beam experiment. The reaction is induced by resonance dissociative electron attachment to the C2F6 component where the nucleophile F- is generated at an energy (around 3.8 eV) where CH3Br does not capture electrons to form Br-. The results indicate that the cross section for the SN2 reaction is independent of the total excess energy which can be varied between 1.7 and 5 eV in the present system. VCH Verlagsgesellschaft mbH 1997.
Temperature dependences of the rate constants and branching ratios for the reactions of F-(H2O)0-5 with CH3Br
Seeley, John V.,Morris, Robert A.,Viggiano
, p. 4598 - 4601 (1997)
The effects of solvation, isotopic substitution, and temperature on the reactions of F-(H2O)n=0-5 with CH3Br have been studied. The reaction of n = 0 produces Br- as the exclusive ionic product and has a rate which is fast, approaching the collision rate, with a slight negative temperature dependence of T-0.9±0.1. The reaction of n = 1 is a factor of 3 slower with a slightly larger negative temperature dependence, T-1.1±0.05. The main ionic product is Br-, with smaller amounts of Br-(H2O) also formed. Substituting D2O for H2O causes the n = 1 rate constant to increase slightly. The n = 2 reaction has a much slower rate and produces three ionic products: Br-, Br-(H2O), and F-(H2O)2(CH3Br). The n = 3 reaction is immeasurably slow. The rate constants for the n = 4 and 5 reactions are greater than those for the n = 3 reaction. The ionic products of these reactions are F-(H2O)3 and F-(H2O)4, respectively.
A Very Strong Methylation Agent: [Me2Cl][Al(OTeF5)4]
H?mmerling, Sebastian,Thiele, Günther,Steinhauer, Simon,Beckers, Helmut,Müller, Carsten,Riedel, Sebastian
supporting information, p. 9807 - 9810 (2019/06/24)
A new chloronium-containing salt, [Me2Cl][Al(OTeF5)4], was synthesized on multigram scale by means of a simple one-pot procedure. The isolated product can be handled at room temperature and used as a strong electrophilic methylation agent. This is demonstrated by the methylation of the very weak bases P(CF3)3, PF3, MeI, and MeBr.
METHOD FOR PRODUCING METHANE FLUORIDE
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Paragraph 0034; 0035; 0036; 0038; 0040, (2017/10/05)
PROBLEM TO BE SOLVED: To provide a method for obtaining methane fluoride by reacting a raw material gas containing a methyl halide represented by the general formula CH3X (X represents a halogen atom other than a fluorine atom, hereinafter the same) and hydrogen fluoride in the presence of a catalyst in which a contact time of the raw material gas with a catalyst is shortened while maintaining the amount of production. SOLUTION: There is provided a method for producing methane fluoride by reacting a raw material gas containing a methyl halide represented by the general formula CH3X (X represents a halogen atom other than a fluorine atom) and hydrogen fluoride in the presence of a catalyst, wherein a contact time (W/F) of the raw material gas with a catalyst is more than 0.3 g sec/mL and less than 3 g sec/mL. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
MANUFACTURING METHOD OF METHANE FLUORIDE
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Paragraph 0055-0059, (2017/03/24)
PROBLEM TO BE SOLVED: To provide a method for elongating life of a catalyst in a conventionally known method for manufacturing methane fluoride by thermal decomposition of fluorine-containing methyl ether in a presence of a catalyst. SOLUTION: There is provided a method for manufacturing methane fluoride by gas phase thermal decomposition of fluorine-containing methyl ether represented by the formula (1) in a presence of a catalyst for thermal decomposition in a presence of at least one kind of gas selected from hydrogen fluoride, chloride, hydrogen chloride and air. (1), where R1 and R2 are each independently a substituted/unsubstituted linear/branched monovalent aliphatic hydrocarbon group, monovalent aromatic hydrocarbon group or monovalent cyclic aliphatic hydrocarbon group, H or a halogen atom. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT
