Magic-angle spinning P-31 NMR spectra of solid niobium half-sandwich compounds are shown to yield values of (Nb-93, P-31) coupling constants not accessible from solution-state spectra, and also to provide more accurate values of chemical shifts. Results are reported and discussed for eight compounds and the general value of NMR spectra of solids for these and similar cases is emphasized.
NIOBIUM PHOSPHORUS COUPLING-CONSTANTS
GOBETTO, Roberto;
1994-01-01
Abstract
Magic-angle spinning P-31 NMR spectra of solid niobium half-sandwich compounds are shown to yield values of (Nb-93, P-31) coupling constants not accessible from solution-state spectra, and also to provide more accurate values of chemical shifts. Results are reported and discussed for eight compounds and the general value of NMR spectra of solids for these and similar cases is emphasized.
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