Molybdenum-95 nuclear magnetic resonance. Applications to substituted carbonyls

Molybdenum-95 NMR spectra of a variety of substituted molybdenum carbonyl species are reported. The large chemical shift range permits easy resolution of substituent effects, both within similar ligands and in the number of carbonyls replaced. Molybdenum-95—phosphorus-31 spin—phosphorus-31 spin—spin coupling is observed by this technique for the first time. The results are discussed in terms of general applications of the technique to molybdenum organometallic chemistry