N. Goldberg et al., GAS-PHASE CHARACTERIZATION OF THE NEURAL AND CATIONIC SI2O2 MOLECULES- A COMBINED EXPERIMENTAL AND AB-INITIO STUDY, Chemical physics letters, 225(4-6), 1994, pp. 404-409
Collision experiments are reported for the generation and characteriza
tion of the neutral and cationic Si2O2 molecule. In addition to the ex
perimental characterization of Si2O2, high-level ab initio calculation
s (CCSD(T)/PVTZ//MP2/6-31 IG(df)) have been performed in order to supp
ort the experimental findings. The study reveals that the global minim
um on both cationic and neutral surfaces corresponds to a bicyclic rho
mbohedric structure.