Y. Negishi et al., REACTION OF SICN-6) AND SICN- (N=2-4) WITH O-2 MOLECULES IN A RADIO-FREQUENCY ION-TRAP( (N=1), The Journal of chemical physics, 103(23), 1995, pp. 9963-9967
Ion-molecule reactions of silicon-carbon binary cluster ions SiCn+ (n=
1-6) and SiCn- (n=2-4) with O-2 molecules were studied by using an rf
ion trap. For all selected positive and negative parent ions, only SiC
nO+ or SiCnO- were produced, respectively. The rate constants for the
oxidation of these clusters were determined for the first time. The si
ze dependence of the reactivities are discussed, and the presence of t
he ring form positive ions for n=3 and 5 are suggested. (C) 1995 Ameri
can Institute of Physics.