New U-III and U-IV silylamides and an improved synthesis of NaN(SiMe2R)(2) (R = Me, Ph)

Stephen M Mansell, Bernabe Fernandez Perandones, Polly L. Arnold

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

It is shown that the deprotonation of bulky amides such as HN(SiMe2Ph)(2) may be accelerated by the use of catalytic quantities of an alkali metal tert-butoxide salt, affording, for example, overnight syntheses of NaN(SiMe2Ph)(2). The new uranium(IV) and uranium(III) complexes [U{N(SiMe2H)(2)}(4)] and [U{N(SiMe2Ph)(2)}(3)] are both accessible from the Group 1 salts of the amides and UI3(thf)(4) in thf. The choice of sodium or potassium salt made no difference to the reaction outcome. Both exhibit Weak interactions between uranium and with silyl-H or silyl-Ph groups in the solid-state. (c) 2010 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)2814-2821
Number of pages8
JournalJournal of Organometallic Chemistry
Volume695
Issue number25-26
DOIs
Publication statusPublished - Dec 2010
Event2010 International Chemical Congress of Pacific Basin Societies - Honolulu, United States
Duration: 15 Dec 201020 Dec 2010

Keywords

  • Uranium
  • Amide ligands
  • Actinide complexes
  • Reduction
  • Agostic
  • Weak interactions
  • TRIVALENT URANIUM CHEMISTRY
  • X-RAY-STRUCTURE
  • CRYSTAL-STRUCTURE
  • AGOSTIC INTERACTIONS
  • ORGANOLANTHANIDE COMPLEXES
  • MAGNETIC-PROPERTIES
  • SALEN COMPLEXES
  • REACTIVITY
  • LIGAND
  • DINITROGEN

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