Charge transfer for reactions of Sc3+ with N2 and H2 at electron-volt energy

The charge transfer rate coefficients for reactions of SC3+ with N-2 and H-2 have been measured at the mean collision energy of 4.2 eV. The rate coefficients are derived from the decay rate of ion signals by using ion storage in a radio frequency ion trap. The rate coefficients are 8.18(0.18) x 10(-10)cm(3.)s(-1) at T-equiv x 1.26 x 10(4) K for SC3+ with N-2 and 1.44(0.39) x 10(-9)cm(3.)s(-1) at T-equiv approximate to 1.67 x 10(3) K for Sc3+ with H-2, respectively. Both results are comparable with the Langevin rate coefficients.