title: Near-infrared photoluminescence from a plutonyl ion.
abstract: We report the first example of photoluminescence from electronically excited states of the plutonyl ion. Discrete emission transitions were measured between 6000 and 10,200 cm(-1) from crystalline Cs2U(Pu)O2Cl4 cooled to 75 K following pulsed laser excitation at 628 nm. An excitation spectrum in the region of 15,000-16,500 cm(-1) is compared with 4.2 K plane-polarized absorption spectra reported by Gorshkov and Mashirov. Analysis of excited-state lifetime data suggests multiple relaxation pathways in the electronic structure of PuO2Cl4(2-).
authors.forename: Marianne P
authors.initials: MP
authors.lastname: Wilkerson
authors.forename: John M
authors.initials: JM
authors.lastname: Berg