Figure 9.

A plot of the ⁵¹V isotropic chemicals shift obtained from solutions NMR vs. that obtained from SSNMR for a series of hydroxylamido vanadium dipicolinate complexes. The compounds are shown presented by the symbol (solid square) are 1 and 4, (solid circle) are the major component in solution of 2 and 8, (open circle) are the minor component in solution of 2 and 8, (solid diamond) are 3 and 5 and (solid triangle) are 4 and 7. The two symbols solid and open circles of 2 and 8 reflect the fact that there are two isomers of these complexes in aqueous solution. Solid black line corresponds to perfect agreement between solid and solution NMR values.