Infrared spectra of cyclic-O_6~+ and trans-O_6~+ in solid neon and argon

摘要

Charged transient species in the oxygen system have been trapped in solid argon and neon using electron impact, Townsend discharge, and laser-ablation methods. The previously identified O_3~-, O_4~-, and O_4~- species are observed in these experiments. Absorptions at 1435.0 and 1429.5 cm~(-1) in solid neon are characterized as cyclic-O_6~+ and trains-O_6~+, respectively, on the basis of annealing behavior, isotopic substitution, multiplet structure in mixed ~(16)O_2 + ~(18)O_2 experiments, and density functional calculations. Cyclic-O_6~+ is observed at 1416.1 cm~(-1) in solid argon, a smaller displacement than found for cyclic-O_4~+ in solid argon.