Russian Chemical Bulletin

, Volume 56, Issue 3, pp 456–460 | Cite as

Synthesis, molecular structure, and catalytic activity of borohydride complexes [(Me3Si)2NC(NPri)2]2Nd(BH4)2Li(thf)2 and [(Me3Si)2NC(NPri)2]2Sm(BH4)2Li(thf)2

  • G. G. Skvortsov
  • M. V. Yakovenko
  • G. K. Fukin
  • E. V. Baranov
  • Yu. A. Kurskii
  • A. A. Trifonov


The reactions of lanthanide tris(borohydrides) Ln(BH4)3(thf)3 (Ln = Sm or Nd) with 2 equiv. of lithium N,N′-diisopropyl-N′-bis(trimethylsilyl)guanidinate in toluene produced the [(Me3Si)2NC(NPri)2]Ln(BH4)2Li(thf)2 complexes (Ln = Sm or Nd), which were isolated in 57 and 42% yields, respectively, by recrystallization from hexane. X-ray diffraction experiments and NMR and IR spectroscopic studies demonstrated that the reactions afford monomeric ate complexes, in which the lanthanide and lithium atoms are linked to each other by two bridging borohydride groups. The complexes exhibit catalytic activity in polymerization of methyl methacrylate.

Key words

lanthanides guanidinate ligand N,N-ligand borohydride ligand synthesis structure polymerization catalysis 


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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • G. G. Skvortsov
    • 1
  • M. V. Yakovenko
    • 1
  • G. K. Fukin
    • 1
  • E. V. Baranov
    • 1
  • Yu. A. Kurskii
    • 1
  • A. A. Trifonov
    • 1
  1. 1.G. A. Razuvaev Institute of Organometallic ChemistryRussian Academy of SciencesNizhnii NovgorodRussian Federation

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