title: Uranium Hydridoborates: Synthesis, Magnetism, and X-ray/Neutron Diffraction Structures.
abstract: While uranium hydridoborate complexes containing the [BH4](-) moiety have been well-known in the literature for many years, species with functionalized borate centers remained considerably rare. We were now able to prepare several uranium hydridoborates (1-4) with amino-substituted borate moieties with high selectivity by smooth reaction of [Cp*2UMe2] (Cp* = C5Me5) and [Cp'2UMe2] (Cp' = 1,2,4-tBu3C5H2) with the aminoborane H2BN(SiMe3)2. A combination of nuclear magnetic resonance spectroscopy, deuteration experiments, magnetic SQUID measurements, and X-ray/neutron diffraction studies was used to verify the anticipated molecular structures and oxidation states of 1-4 and helped to establish a linear tridentate coordination mode of the borate anions.
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Braunschweig
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Gackstatter
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Kupfer
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Radacki
authors.affiliation: ‡Institut für Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Franke
authors.affiliation: ‡Institut für Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Meyer
authors.affiliation: §School of Medicine, Pharmacy and Health, Durham University, Queen's Campus, University Boulevard, Stockton-on-Tees TS17 6BH, U.K.
authors.forename: K
authors.initials: K
authors.lastname: Fucke
authors.affiliation: ∥Institut Laue-Langevin, F-38042 Grenoble, France.
authors.forename: M-H
authors.initials: MH
authors.lastname: Lemée-Cailleau
mesh_terms: D001881:Borates / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D060328:Magnetic Phenomena; D008958:Models, Molecular; D008968:Molecular Conformation; D033363:Neutron Diffraction; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D014501:Uranium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D001881:Borates; D009942:Organometallic Compounds; D014501:Uranium