Synthesis and characterization of deuterium-labelled (fulvene)M(CO)3 complexes (M = Cr, Mo)

The preparation and characterization of a series of deuterium-labelled (fulvene)M(CO)3 (M = Cr, Mo) complexes is reported. (η5-6-Dimethylaminofulvene-d2)Cr(CO)3 and (η5-6-dimethylaminofulvene-d2)Mo(CO)3 were obtained in high yields by reacting the deuterated fulvene ligands with (MeCN)3M(CO)3 (M = Cr, Mo). In addition, syntheses of 6,6-diphenylfulvene-d10 and 6,6-diphenyl-1,2-benzofulvene-d10 as well as the corresponding tricarbonylchromium complexes are described.