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 butadi...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.展开更多
Most of the organolanthanides are prepared by using their chlorides as starting materials. It is easy to obtain the trichlorides of lanthanides. Cerium tetrachloride has not been prepared owing to its thermal instabil...Most of the organolanthanides are prepared by using their chlorides as starting materials. It is easy to obtain the trichlorides of lanthanides. Cerium tetrachloride has not been prepared owing to its thermal instability. Some of the chloro-complexes of cerium(Ⅳ) with a variety of cations and a few of its complexes with neutral donor ligands have been isolated.展开更多
文摘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.
文摘Most of the organolanthanides are prepared by using their chlorides as starting materials. It is easy to obtain the trichlorides of lanthanides. Cerium tetrachloride has not been prepared owing to its thermal instability. Some of the chloro-complexes of cerium(Ⅳ) with a variety of cations and a few of its complexes with neutral donor ligands have been isolated.
