We report a photoemission study of the systematics of the 4f electronic structure of a family of rare-earth organic compounds. Resonant photoemission has been used to determine the binding energies of the 4f(N-1) ground states, relative to those of the ligand orbitals, of a number of rare-earth tris-8-hydroxyquinolines (REQ(3)'s). Using an empirical model these results have been extrapolated to the full series (Ce-Lu) of REQ(3)'s. It is found that in all cases, with the possible exception of Ce, the energy of the 4f(N-1) ground state is less than that of the highest occupied molecular orbital, and therefore individual holes on lanthanide sites will not be stable.

Systematics of the 4F energies in a series of rare-earth organic complexes determined by resonant photoemission

CINGOLANI, Roberto;
2004

Abstract

We report a photoemission study of the systematics of the 4f electronic structure of a family of rare-earth organic compounds. Resonant photoemission has been used to determine the binding energies of the 4f(N-1) ground states, relative to those of the ligand orbitals, of a number of rare-earth tris-8-hydroxyquinolines (REQ(3)'s). Using an empirical model these results have been extrapolated to the full series (Ce-Lu) of REQ(3)'s. It is found that in all cases, with the possible exception of Ce, the energy of the 4f(N-1) ground state is less than that of the highest occupied molecular orbital, and therefore individual holes on lanthanide sites will not be stable.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11587/107654
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