910029-72-0Relevant academic research and scientific papers
Imido exchange in bis(imido) uranium(VI) complexes with aryl isocyanates
Spencer, Liam P.,Yang, Ping,Scott, Brian L.,Batista, Enrique R.,Boncella, James M.
, p. 2930 - 2931 (2008/09/19)
Addition of 1 and 2 equiv of ArNCO (Ar=Ph, 2,4,6-Me3C6H2) to U(NtBu)2(I)2(OPPh3)2 yields the aryl-imido complexes U(NAr)(NtBu)(I)2(OPPh3)2 and U(NAr)2(I)2(OPPh3)2, respectively. Unlike analogous transition metal reactions this imido exchange reaction does not proceed through a metal oxo intermediate. Density functional theory calculations and 15N-labeling studies suggest this transformation involves the [2 + 2] cycloaddition of the aryl isocyanate C=N bond across the U=N imido ligand to form an N,N-bound ureato intermediate. Copyright
