Interaction between iron ion and dipole carbon monoxide inside spherical cavities Josimar Fernando da Silva, Ícaro Putinhon Caruso and Elso Drigo Filho Eur. Phys. J. D, 75 1 (2021) 22 Published online: 21 January 2021 DOI: 10.1140/epjd/s10053-020-00018-y