Direct observation of diastereomers with opposite Mo configurations by 95Mo NMR

Abstract Molybdenum-95 NMR has been used to directly detect the two diastereomers differing only in the Mo configuration in the square pyramidal molybdenum(II) complex [C 5 H 5 Mo(CO) 2 NN★]PF 6 , where NN★ is the chiral pyridine-2-carbaldimine ligand derived from pyridine-2-carbaldehyde and (S)(-)-1-phenylethylamine. The simplicity of the spectra clearly reveals the optical purity of the complex with respect to the metal center.