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Open Access Publications from the University of California

Synthesis and Utility of a Neptunium(III) Hydrocarbyl Complex.

  • Author(s): Walensky, Justin
  • Myers, Alexander J
  • Tarlton, Michael L
  • Kelley, Steven P
  • Lukens, Wayne W
  • et al.

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To extend organoactinide chemistry beyond uranium, we report the first structurally characterized transuranic hydrocarbyl complex, Np[η4-Me2NC(H)C6H5]3, 1, from reaction of NpCl4(DME)2 with four equivalents of K[Me2NC(H)C6H5]. Unlike the U(III) species, the neptunium analogue can be used to access other Np(III) complexes. The reaction of 1 with three equivalents of HE2C(2,6-Mes2-C6H3), E = O, S, yields [(2,6-Mes2-C6H3)CE2]3Np(THF)2, maintaining the trivalent oxidation state.

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