希ガスおよび大気成分中のアルカリイオンの移動度とクラスター反応

概要

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The interaction potential between the Li+ ion and neutral atoms or molecules (Ar, Kr, Xe, N2, and O2) can be estimated from the ionic mobilities measured in gases. Assuming Langevin reaction coefficient as a limiting value, we have plotted experimental reverse Li+ ion-clustering reaction coefficients as Arrhenius plot and the activation energies for the reverse ion-clustering reactions were estimated. We found a good relationship between the activation energies and the well depth of the potential between the Li+ ion and the neutral atoms or molecules estimated from the mobility measurement. We also found a relationship for the forward reaction coefficients, which can be deduced from the Langevin reaction coefficient and the mean trapping time calculated from the interaction potential. The quadrupole moment for the diatomic molecule such as N2 and O2, plays an important role in forward ion-clustering reaction of Li+ ions.
日本質量分析学会の論文
1995-10-30