Determination of and interaction potentials from gaseous ion mobility data

Abstract

Effective spherical interaction potentials for ArÀO þ 2 and KrÀO þ 2 are calculated from experimental gaseous ion mobility data by using the direct inversion method. The potentials obtained are used to obtain best-fit parameters of the Morse-Morse-Spline-Van der Waals (MMSV) potential model. The MMSV potentials were then employed to compute the mobility of O þ 2 ion in argon and krypton gases at 300 K. Results show that the MMSV potentials reproduce the experimental ion mobilities within their experimental accuracy.