Vibrationally resolved anion photoelectron spectra of the low-lying electronic states of GaP2-, Ga2P-, and Ga2P3-

Anion photoelectron spectra of GaP2-, Ga2P-, and Ga2P3- have been taken at photodetachment wavelengths of 266 nm (4.657 eV), 355 nm (3.493 eV), 416 nm (2.977 eV), and 498 nm (2.491 eV). Using this variety of wavelengths has a llowed us to vibrationally resolve the low-lying electronic states of these species. We report electron affinities, term values, and vibrational frequ encies of the corresponding neutral and anion states where possible. Result s are in qualitative agreement with current ab initio studies.