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Lu E, Cooper OJ, McMaster J, et al. Synthesis, characterization, and reactivity of a uranium(VI) carbene imido oxo complex. Angew Chem Int Ed Engl. 2014;53(26):6696-700doi: 10.1002/anie.201403892.
Lu, E., Cooper, O. J., McMaster, J., Tuna, F., McInnes, E. J., Lewis, W., Blake, A. J., & Liddle, S. T. (2014). Synthesis, characterization, and reactivity of a uranium(VI) carbene imido oxo complex. Angewandte Chemie (International ed. in English), 53(26), 6696-700. https://doi.org/10.1002/anie.201403892
Lu, Erli, et al. "Synthesis, characterization, and reactivity of a uranium(VI) carbene imido oxo complex." Angewandte Chemie (International ed. in English) vol. 53,26 (2014): 6696-700. doi: https://doi.org/10.1002/anie.201403892
Lu E, Cooper OJ, McMaster J, Tuna F, McInnes EJ, Lewis W, Blake AJ, Liddle ST. Synthesis, characterization, and reactivity of a uranium(VI) carbene imido oxo complex. Angew Chem Int Ed Engl. 2014 Jun 23;53(26):6696-700. doi: 10.1002/anie.201403892. Epub 2014 May 19. PMID: 24842784; PMCID: PMC4464547.
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Angew Chem Int Ed Engl. 2014 Jun 23;53(26):6696-700. doi: 10.1002/anie.201403892. Epub 2014 May 19.

Synthesis, characterization, and reactivity of a uranium(VI) carbene imido oxo complex.

Angewandte Chemie (International ed. in English)

Erli Lu, Oliver J Cooper, Jonathan McMaster, Floriana Tuna, Eric J L McInnes, William Lewis, Alexander J Blake, Stephen T Liddle

Affiliations

  1. School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (UK).

PMID: 24842784 PMCID: PMC4464547 DOI: 10.1002/anie.201403892

Abstract

We report the uranium(VI) carbene imido oxo complex [U(BIPM(TMS))(NMes)(O)(DMAP)2] (5, BIPM(TMS) = C(PPh2 NSiMe3)2; Mes = 2,4,6-Me3C6H2; DMAP = 4-(dimethylamino)pyridine) which exhibits the unprecedented arrangement of three formal multiply bonded ligands to one metal center where the coordinated heteroatoms derive from different element groups. This complex was prepared by incorporation of carbene, imido, and then oxo groups at the uranium center by salt elimination, protonolysis, and two-electron oxidation, respectively. The oxo and imido groups adopt axial positions in a T-shaped motif with respect to the carbene, which is consistent with an inverse trans-influence. Complex 5 reacts with tert-butylisocyanate at the imido rather than carbene group to afford the uranyl(VI) carbene complex [U(BIPM(TMS))(O)2(DMAP)2] (6).

© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: carbene ligands; imido ligands; multiple bonding; oxo ligands; uranium

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