Knowledge Bank

A new technique whereby the high resolution absorption spectrum of unusual radicals in a high velocity beam can be obtained by monitoring photo-induced changes in their neutralization-reionization mass spectra will be discribed. Very recently obtained absorption spectra for the $H3$ radical will be presented as evidence of the feasibility of the technique. Application of this technique toward the observation of the electronic spectra of the hypervalent radicals $NH4,H3O$, and $H2F$ will be discussed.