We have synthesized a number of bis-1,1,-amino-functionalized vanadocenes and vanadocene monochlorides; the bis-1,1,-amino-functiohalized vanadocenes represent the first examples of structurally characterized compounds of this type, and bis-1,1,-amion-functionalized vanadocene monochlorides represent the first example synthesized and characterized. We report the catalytic behavior of some of the complexes toward butadiene and observe that amino-functionalized, cyclopentadienyl vanadium phosphine chloride complexes behave much differently from their nonfunctionalized cyclopentadienyl derivatives.