Organometallics, 20 (24), 4993 -4995, 2001. 10.1021/om010575k S0276-7333(01)00575-1
Web Release Date: October 19, 2001

Copyright © 2001 American Chemical Society

Uranium-Group 14 Element Single Bonds: Isolation and Characterization of a Uranium(IV) Silyl Species

Paula L. Diaconescu, Aaron L. Odom, Theodor Agapie, and Christopher C. Cummins*

Department of Chemistry, Room 2-227, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307

Received June 28, 2001

Abstract:

A uranium silyl compound, (Ar[tBu]N)3USi(SiMe3)3 (1; Ar = 3,5-C6H3Me2), has been synthesized, isolated, and characterized structurally and theoretically; compound 1 crystallizes in the space group P and its U-Si interatomic distance was found to be 3.091(3) Å. Geometry optimizations were carried out for the model systems H3EU(NH2)3 (E = C, Si, Ge, Sn) with a set of reasonable constraints; calculated U-E distances and bond energies are in good accord with experimental data.

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