What question did this study set out to answer?

To identify secondary ions generated from methane and ethylene at elevated pressures in a mass spectrometer ion source and establish their formation pathways and reaction kinetics.

January 1, 2001Journal of Mass Spectrometry

Reactions of gaseous ions. I. Methane and ethylene

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Authors

FFF. H. FieldLee College JFJ. L. FranklinThe University of Texas at Austin FLF. W. LampeNational Institutes of Health

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Implication

Laboratory study demonstrates rapid secondary ion formation in methane and ethylene at high pressures, indicating collision rates reflect rotational and polarization forces.

Key Points

To identify secondary ions generated from methane and ethylene at elevated pressures in a mass spectrometer ion source and establish their formation pathways and reaction kinetics.
Operated a mass spectrometer ion source at elevated pressures to induce gas-phase collisions between primary positive ions and neutral methane or ethylene molecules.
Calculated reaction rate constants and cross-sections using classical collision theory accounting for molecular rotational and polarization forces.
Collisions between positive ions and neutral species in both methane and ethylene produced multiple secondary ion species through extremely rapid reaction rates.
Observed reaction rate constants and collision cross-sections closely agreed with theoretical predictions derived from balancing rotational and polarization forces.

Cite This Study

Field et al. (2001) studied this question.

synapsesocial.com/papers/6a8fbf63835c7afbe41fcecb https://doi.org/10.1002/jms.116

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Implication

Laboratory study demonstrates rapid secondary ion formation in methane and ethylene at high pressures, indicating collision rates reflect rotational and polarization forces.

Reactions of gaseous ions. I. Methane and ethylene

Discussion

Member takes

Implication

Key Points

Cite This Study

Reactions of gaseous ions. I. Methane and ethylene

Discussion

Member takes

Implication

Key Points

Cite This Study

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