We report on the extension to odd nuclei of a microscopic multiphonon approach known as equation of motion phonon method and its application to the odd neighbors of the neutron rich O-22. A calculation using the chiral potential NNLOopt and encompassing up to two phonon basis states provides a description of the spectroscopic properties which is good quantitatively for O-23 and qualitatively for O-21 and N-21.
Serious discrepancies between theory and experiments occur in F-23. A possible recipe for curing them is under investigation.