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Imido exchange in bis(imido) uranium(VI) complexes with aryl isocyanates
- Source :
- Journal of the American Chemical Society. 130(10)
- Publication Year :
- 2008
-
Abstract
- Addition of 1 and 2 equiv of ArNCO (ArPh, 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 CN bond across the UN imido ligand to form an N,N-bound ureato intermediate.
Details
- ISSN :
- 15205126
- Volume :
- 130
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Journal of the American Chemical Society
- Accession number :
- edsair.doi.dedup.....e7d0d965fe61e35004f7e296fbef855b