Electron impact studies. CIX. The detection of doubly charged negative ions by ion cyclotron resonance spectroscopy

1977 ◽  
Vol 30 (2) ◽  
pp. 417 ◽  
Author(s):  
BJ Stapleton ◽  
JH Bowie
Keyword(s):  
Electron Impact ◽  
Cyclotron Resonance ◽  
Negative Ions ◽  
Alkyl Halides ◽  
Resonance Spectroscopy ◽  
Ion Cyclotron Resonance ◽  
Impact Studies ◽  
Ion Cyclotron ◽  
Doubly Charged

Ion cyclotron resonance allows the sensitive measurement of doubly charged anions at low cell pressures. Evidence is presented which suggests the formation of X-- (X = halogen) ions from alkyl halides.

Electron impact studies. CXVIII. An ion cyclotron resonance study of the reactivity of negative ions derived from ethenetetracarbonitrile. Anionic polymerization in the gas phase

1977 ◽  
Vol 30 (10) ◽  
pp. 2161 ◽  
Author(s):  
JH Bowie
Keyword(s):  
Gas Phase ◽  
Electron Impact ◽  
Anionic Polymerization ◽  
Cyclotron Resonance ◽  
Negative Ions ◽  
Ion Cyclotron Resonance ◽  
Impact Studies ◽  
Stable Adduct ◽  
Ion Cyclotron

.The [M·–l CN·I- species from ethenetetracarbonitrile (tetracyanoethylene) reacts with neutral ethene- tetracarbonitrile to give the stable adduct C11N7-. The decomposing form of this adduct eliminates C2N2 to produce C,9N5- which may react with ethenetetracarbonitrile to yield C15N,9-. Analogous anionic polymerization reactions yield a number of detectable peaks in the i.c.r. spectrum of tetra- cyanoethylene, with the structures of the ions possibly corresponding to a. Diagram Polymerization of this type can also be initiated by other nucleophiles including Cl-, Br-, I- and CF3CO2-.

Hydrogen bond assisted reactions of carboxylic acids with alkyl halides in the gas phase by ion cyclotron resonance spectroscopy

1980 ◽  
Vol 58 (3) ◽  
pp. 307-309 ◽  
Author(s):  
R. L. Clair ◽  
T. B. McMahon
Keyword(s):  
Gas Phase ◽  
Cyclotron Resonance ◽  
Alkyl Halides ◽  
Nucleophilic Attack ◽  
Resonance Spectroscopy ◽  
Ion Cyclotron Resonance ◽  
Acid Solutions ◽  
Metal Fluorides ◽  
Ion Cyclotron ◽  
Alkyl Acetates

The reactions of the strongly hydrogen bonded anions, CH3CO2HF− and (CH3CO2)2H−, with alkyl halides have been studied in the gas phase by ion cyclotron resonance spectroscopy. A novel reaction of nucleophilic attack by (CH3CO2)2H− with alkyl chlorides to produce CH3CO2HCl− and alkyl acetates is reported. Parallels are drawn to synthetically important analogous reactions in glacial acetic acid solutions of alkali metal fluorides.

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