摘要
The syntheses of the 1,3-diene complexes of the d-elements （Ti, Zr, Hf） have already been reported, but the preparation of the metallacycles of the f-elements has not until now. In this paper the syntheses of butadiene lanthanide complexes by the reaction of LnCl3 （Ln=Nd, Sm, Gd） with C4H6Mg in THF are the main subject discussed.
