Eight coordinate 1,2-bis(dimethylarsino) and 1,2-bis(dimethylphosphino)-benzene complexes of uranium tetrachloride, UCl4[(1,2-Me2E)2C6H4]2 where E is As or P
作者:Sergio S. Rozenel、Peter G. Edwards、Mark A. Petrie、Richard A. Andersen
DOI:10.1016/j.poly.2016.04.024
日期:2016.9
uranium crystallize in the tetragonal crystal system in space group I 4 ¯ 2m, in which the geometry is a D2d-dodecahedron. In solution the uranium complexes do not exchange with added free ligand on the NMR time scale but they undergo bidentate ligand exchange on the chemical time scale. The 31P1H} NMRchemical shifts of UI4(diphos)2 and UX4(dmpe)2, X = Cl, Br, I range from 1500 to 2100 ppm and are strongly
UI<sub>4</sub>(1,4-dioxane)<sub>2</sub>, [UCl<sub>4</sub>(1,4-dioxane)]<sub>2</sub>, and UI<sub>3</sub>(1,4-dioxane)<sub>1.5</sub>: Stable and Versatile Starting Materials for Low- and High-Valent Uranium Chemistry
作者:Marisa J. Monreal、Robert K. Thomson、Thibault Cantat、Nicholas E. Travia、Brian L. Scott、Jaqueline L. Kiplinger
DOI:10.1021/om200093q
日期:2011.4.11
The uranium(III) and uranium(IV) iodide complexes UI3(1,4-dioxane)1.5 and UI4(1,4-dioxane)2 have been easily prepared in high yield by reacting uranium turnings with a 1,4-dioxane solution of iodine under mild conditions. The two complexes exhibit outstanding thermal stability and are excellent precursors to a variety of uranium(III), uranium(IV), and uranium(VI) alkoxide, amide, organometallic, and