title: Circularly polarized luminescence of curium: a new characterization of the 5f actinide complexes.
abstract: A key distinction between the lanthanide (4f) and the actinide (5f) transition elements is the increased role of f-orbital covalent bonding in the latter. Circularly polarized luminescence (CPL) is an uncommon but powerful spectroscopy which probes the electronic structure of chiral, luminescent complexes or molecules. While there are many examples of CPL spectra for the lanthanides, this report is the first for an actinide. Two chiral, octadentate chelating ligands based on orthoamide phenol (IAM) were used to complex curium(III). While the radioactivity kept the amount of material limited to micromole amounts,  spectra of the highly luminescent complexes showed significant emission peak shifts between the different complexes, consistent with ligand field effects previously observed in luminescence spectra.
authors.affiliation: Department of Chemistry, University of California, Berkeley, California 94720-1460, USA.
authors.forename: Ga-Lai
authors.initials: GL
authors.lastname: Law
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Andolina
authors.forename: Jide
authors.initials: J
authors.lastname: Xu
authors.forename: Vinh
authors.initials: V
authors.lastname: Luu
authors.forename: Philip X
authors.initials: PX
authors.lastname: Rutkowski
authors.forename: Gilles
authors.initials: G
authors.lastname: Muller
authors.forename: David K
authors.initials: DK
authors.lastname: Shuh
authors.forename: John K
authors.initials: JK
authors.lastname: Gibson
authors.forename: Kenneth N
authors.initials: KN
authors.lastname: Raymond
mesh_terms: D008671:Actinoid Series Elements / Q000737:chemistry*; D003476:Curium / Q000737:chemistry*; D049449:Luminescence; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D008671:Actinoid Series Elements; D003476:Curium