摘要
The 1H and 13C-NMR spectra of Li(nL)·Ln(η3-C3H5), (Ln = La, n = 3, Ln = Y, n =2.5.Ln = Ce, Pr, Nd, Sm, n = 2, L =dioxane) are reported. The allyl ligands coordinated to rare earth metal ions in every complex are equivalent and delocalized showing n3-allyl character and give strong paramagnetic shifts except the La and Y complexes. The induced shifts of rare earth ions at the allyls were observed and separated .
The 1H and 13C-NMR spectra of Li(nL)·Ln(η3-C3H5), (Ln = La, n = 3, Ln = Y, n =2.5.Ln = Ce, Pr, Nd, Sm, n = 2, L =dioxane) are reported. The allyl ligands coordinated to rare earth metal ions in every complex are equivalent and delocalized showing n3-allyl character and give strong paramagnetic shifts except the La and Y complexes. The induced shifts of rare earth ions at the allyls were observed and separated .
