TY - JOUR
T1 - 11B NMR solution studies of the interactions between Sml2(tetrahydrofuran)x and nido-pentaborane(9) compounds
AU - Cendrowski-Guillaume, Sophie M.
AU - Spencer, James T.
PY - 1997
Y1 - 1997
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=19644388409&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=19644388409&partnerID=8YFLogxK
U2 - 10.1515/MGMC.1997.20.11.733
DO - 10.1515/MGMC.1997.20.11.733
M3 - Article
AN - SCOPUS:19644388409
SN - 0792-1241
VL - 20
SP - 733
EP - 743
JO - Main Group Metal Chemistry
JF - Main Group Metal Chemistry
IS - 11
ER -