The unusual stability of NpO2Cl4 (2-): Synthesis and characterisation of NpO2(DPPMO2)(2)Cl (2) NpO2Cl4 and Ph3PNH2 (2) NpO2Cl4

S M Cornet, M P Redmond, D Collison, C A Sharrad, M Helliwell, John Warren

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11 Citations (Scopus)

Abstract

The [NpO2(DPPMO2)(2)Cl][NPO2Cl4] complex (where DPPMO2= bis(diphenylphosphino)-methanedioxide) contains the linear neptunyl group, {NpO2}(2+), with two bidentate P=O donor ligands Coordinating anion Cl- fills the fifth equatorial coordination site yielding a complex of general formula [NpO2(DPPMO2)(2)X](2)[Y] (1) (where X = Cl- and Y = [NPO2Cl4](2-). Reaction between our newly prepared neptunium starting material [NpO2Cl2(thf)(n) and phosphinimine ligand produced crystals of [Ph3PNH2](2)[NpO2Cl4] (2). Compounds 1 and 2 have been structurally characterised (C) 2010 Academic des sciences.
Original languageEnglish
Pages (from-to)832-838
Number of pages7
JournalComptes Rendus Chimie
Volume13
Issue number6-7
DOIs
Publication statusPublished - Jun 2010

Keywords

  • neptunyl tetrachloride
  • neptunium
  • bis(diphenylphosphino)methane dioxide
  • single crystal X-ray diffraction

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