11B NMR solution studies of the interactions between Sml2(tetrahydrofuran)x and nido-pentaborane(9) compounds

Sophie M. Cendrowski-Guillaume, James T. Spencer

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1 Scopus citations


The nature of the interactions between samarium(II) and the nido-octahydropentaborate anion, NaB5H8, and neutral nido-pentaborane(9), B5H9, in THF solutions were investigated by 11B NMR spectroscopy. In these studies, chemical shifts, 11B-1H1 coupling constants, spectral line widths and variable temperature data for the apical and basal [B5H8]-1 resonances indicate that significant interactions occur between the paramagnetic samarium center and the [B5H8]-1 cluster with significantly weaker interactions observed between the samarium(II) and the neutral nido-pentaborane(9) cage. The B NMR spectral data for both pentaborane clusters were observed to depend linearly and solely on the Sm(II) concentration in solution. A mechanism is proposed to account for these observations.

Original languageEnglish (US)
Pages (from-to)733-743
Number of pages11
JournalMain Group Metal Chemistry
Issue number11
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Metals and Alloys
  • Materials Chemistry


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