Positive ion chemistry of fluoromethylsilanes, (CH3)nSiF4-n(n = 1-3), by ion cyclotron resonance spectroscopy. Fluorine and methyl substituent effects on the relative stabilities of siliconium ions, R+, and disilylfluoronium ions, RR'F+, in the gas phase

1976 ◽  
Vol 98 (19) ◽  
pp. 5781-5788 ◽  
Author(s):  
M. K. Murphy ◽  
J. L. Beauchamp
Keyword(s):  
Gas Phase ◽  
Cyclotron Resonance ◽  
Substituent Effects ◽  
Resonance Spectroscopy ◽  
Ion Cyclotron Resonance ◽  
Methyl Substituent ◽  
Ion Chemistry ◽  
Relative Stabilities ◽  
Ion Cyclotron ◽  
Positive Ion

Bimolecular production of gas phase ionic hydrates by ion cyclotron resonance spectroscopy

1980 ◽  
Vol 58 (8) ◽  
pp. 863-865 ◽  
Author(s):  
R. L. Clair ◽  
T. B. McMahon
Keyword(s):  
Gas Phase ◽  
Cyclotron Resonance ◽  
Resonance Spectroscopy ◽  
Ion Cyclotron Resonance ◽  
Ion Chemistry ◽  
Ion Molecule Reactions ◽  
Hydronium Ion ◽  
Dominant Feature ◽  
Ion Cyclotron ◽  
Gas Phase Ion

The gas phase ion–molecule reactions of α,α,α′,α′ tetrafluorodimethyl ether both alone and in mixtures with water have been examined. The dominant feature of the ion chemistry of these mixtures is the sequential bimolecular production of the hydrated hydronium ion, H5O2+. Two independent mechanistic pathways for production of H5O2+ are outlined arising from reaction of H3O+ with (CF2H)2O and from CF2H—O=CHF+ with H2O. Implications for examination of solvent switching equilibria are discussed.

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