A Discussion on photoelectron spectroscopy - Photoelectron spectra of halides of elements in groups III, IV, V and VI

Abstract
Photoelectron spectra of the halides of B, C, N, P, As, S, Se, Te and U are reported and interpreted in terms of molecular orbital structure. The experimental criteria which are used to identify the orbitals are briefly discussed. It is shown how the orbitals of the halides of the elements of different groups are related and how the additional electrons of molecules containing higher group atoms are accommodated in outer orbitals in a building up process somewhat analogous to that which occurs in atoms.