relates the binding energy of the electron to the energy of
the atomic or molecular orbital in which it resides. This relationship
allows photoelectron spectroscopy to be used to
estimate the energies of occupied orbitals, and, thus, obtain
information about the ordering of orbitals in a particular
atomic or molecular species.
Further reading
R.L. DeKock and H.B. Gray (1980) Chemical Structure and
Bonding, Benjamin/Cummings, Menlo Park – This
includes a more detailed discussion of the application of
PES