title: [U(bipy)4]: A Mistaken Case of U0?
abstract: After more than 50 years, the synthesis and electronic structure of the first and only reported "U0complex" [U(bipy)4] (1) has been reinvestigated. Additionally, its one-electron reduced product [Na(THF)6][U(bipy)4] (2) has been newly discovered. High resolution crystallographic analyses combined with magnetic and computational data show that 1 and its derivative 2 are best described as highly reduced species containing mid-to-high-valent uranium ligated by redox non-innocent ligands.
authors.affiliation: Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968, USA. asfortier@utep.edu.
authors.forename: Skye
authors.identifier: http://orcid.org/0000-0002-0502-5229
authors.initials: S
authors.lastname: Fortier
authors.affiliation: Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968, USA.
authors.forename: José
authors.initials: J
authors.lastname: Veleta
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.
authors.forename: Amélie
authors.initials: A
authors.lastname: Pialat
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Le Roy
authors.affiliation: Department of Chemistry, University of California, Davis, Davis, CA, 95616, USA.
authors.forename: Kamran B
authors.initials: KB
authors.lastname: Ghiassi
authors.affiliation: Department of Chemistry, University of California, Davis, Davis, CA, 95616, USA.
authors.forename: Marilyn M
authors.initials: MM
authors.lastname: Olmstead
authors.affiliation: Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968, USA.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Metta-Magaña
authors.affiliation: Department of Chemistry, University of Ottawa, Ottawa, ON, K1N 6N5, Canada. M.Murugesu@uottawa.ca.
authors.forename: Muralee
authors.initials: M
authors.lastname: Murugesu
authors.affiliation: Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968, USA. dino@utep.edu.
authors.forename: Dino
authors.initials: D
authors.lastname: Villagrán
keywords: electronic structure; magnetic properties; radicals; redox chemistry; uranium