https://doi.org/10.1007/s100530050140
The evolution of electronic structure in lanthanide metal clusters: Threshold photoionization spectra of Cen and Prn.
Chemistry Division, Argonne National Laboratory,
Argonne, IL 60439, USA
Corresponding author: a knickelbein@anlchm.chm.anl.gov
Received:
2
January
1998
Accepted:
10
March
1998
Published online: 15 June 1998
The photoionization spectra of Pr2-Pr21 and Ce2-Ce17 have been
measured near threshold. The ionization potentials (IPs) of 
and 
vary
discontinuously with size, but trend downward toward the work function of the
bulk metals. In general, the IPs of cerium clusters display more variation than
those of praseodymium clusters. The sudden discontinuities observed in the IPs
of both and is akin to that displayed by clusters of transition metal
atoms, suggesting that as in transition metal clusters, the rapid evolution in
geometric structure with size is the source of these discontinuities.
PACS: 36.40.-c – Atomic and molecular clusters / 33.20.Lg – Ultraviolet spectra / 33.80.Eh – Autoionization, photoionization, and photodetachment
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
