Synthesis and structure of the first uranium(VI) organometallic complex

Journal Article · Wed Dec 02 00:00:00 EST 1992 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00051a053· OSTI ID:6394975

Arney, D S.J.; Burns, C J; Smith, D C ^[1]

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1. Los Alamos National Lab., NM (United States)

The chemistry of complexes of the d-transition elements containing organoimido functional groups constitutes a rapidly expanding area of research. Examples of molecules containing multiple terminal imido functional groups now exist for representative elements from groups 5-8. In contrast, f-metal terminal organoimido complexes are still relatively rare, and examples of single actinide metal sites coordinated by greater than one imido ligand are unknown. On the basis of the stability of uranyl ion (UO[sub 2])[sup 2+], there appears to be no reason why the isoelectronic bis(organoimido) species should not be accessible. Development of this chemistry has been hampered by the lack of synthetic routes to high-valent (V,VI) uranium complexes and by the relatively small number of ligands which have been demonstrated to stabilize these oxidation states. Here we describe the synthesis and structural characterization of the first bis(organoimido) complex of uranium(VI). This species also represents the first complex of uranium(VI) supporting metal-carbon bonding in either a [sigma]- or [pi]-fashion. As part of our studies of preparative routes to uranium organoimido complexes, we are examining generation of uranium imido functionalities by abstraction of an amido hydrogen by a leaving hydrocarbyl or amido ligand. 4 refs., 1 fig.

• OSTI ID: 6394975
• Journal Information: Journal of the American Chemical Society; (United States), Vol. 114:25; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
ORGANOMETALLIC COMPOUNDS
MOLECULAR STRUCTURE
URANIUM COMPOUNDS
ABSORPTION SPECTROSCOPY
CHEMICAL PREPARATION
CRYSTAL STRUCTURE
NUCLEAR MAGNETIC RESONANCE
X-RAY DIFFRACTION
ACTINIDE COMPOUNDS
COHERENT SCATTERING
DIFFRACTION
MAGNETIC RESONANCE
ORGANIC COMPOUNDS
RESONANCE
SCATTERING
SPECTROSCOPY
SYNTHESIS
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials