in neat (no solvent) other Radiation; photolysis (laser irradiation at 555 nm, 210°C); ionization, spectroscopic detection;

in gas molecular Cs2 beam generated by expansion of alkali vapor through a nozzle crossed with a beam of ground state oxygen atoms; monitoring by chemiluminescence or induced fluorescence;

in gas Kinetics; react. of atomic I (generated by pulse irradn. of CsI produced in a flow system from react. of CH3I in the presence of excess atomic Cs) with Cs2 at 491 K; not isolated; detn. by resonance fluorescence;