N. Watanabe et al., REACTIONS OF SCANDIUM CARBON BINARY CLUSTER IONS C(N)SC-6) WITH O-2 MOLECULES IN AN RF ION-TRAP( (N=2), Chemical physics letters, 207(4-6), 1993, pp. 493-497
The reactions of C(n)Sc+ (n = 2-6) with O2 have been studied by using
an rf ion trap. C(n)Sc+ was produced by the laser ablation of a mixed
sample of graphite and scandium. Observed reaction product ions were S
cO+ for all C(n)Sc+, and ScO2+ only for C(n)Sc+ with odd n. In the cas
e of C6Sc+, the loss of 2C neutrals, leading to C4Sc+ production, was
also observed. The estimated rate constants of C(n)SC+ + O2 reactions
were found to alternate in magnitude with the cluster size; C(n)Sc+ cl
usters with even n have rate constants much lower than those with odd
n.