Matrix Reactions of K and Rb Atoms with Oxygen Molecules

摘要

Deposition of atomic beams of potassium and rubidium with oxygen molecules at high dilution in argon together on a salt window at 15deg;K produces the KO2and RbO2molecules, as identified by infrared spectra. Secondary reaction yields the KO2K and RbO2Rb molecules. Oxygen isotopic mixtures and simultaneous deposition of two different alkalihyphen;metal atoms verify the molecular composition. Detailed concentration changes and oxygen isotropic mixtures identify the new molecular species O2KO2and O2RbO2, the potassium and rubdium disuperoxide molecules which likely have theD2dstructure. Force constants for the molecules synthesized here are compared with those reported earlier for LiO2and NaO2.