Quantum chemical study of the electronic structures of MnC2-/0 clusters and interpretation of the anion photoelectron spectra
Résumé
Cyclic and linear View the MathML sourceMnC2-/0 clusters have been theoretically studied. The View the MathML source7A1and6A1 states of the cyclic isomer are calculated to be the ground states of the anionic and neutral cluster, respectively. All observed bands in the experimental photoelectron spectra of View the MathML sourceMnC2- could be assigned to the cyclic isomer. The X band is ascribed to an ionization during which an electron is detached from a nonbonding 4s4p hybrid orbital. The higher bands in the spectra are the result of ionization processes in which an electron from the nonbonding HOMO of the View the MathML sourceC22- ligand is removed.