Bis-silicon-bridged dinuclear metallocene compound and preparation and application thereof

The invention relates to a bis-silicon-bridged dinuclear metallocene compound and preparation and application thereof. The bridged cyclopentadienyl rings of the bis-silicon-bridged dinuclear metallocene compound contain different substituents. Dimethyldichlorosilane reacts with cyclopentadienyl sodium, so that light yellow solution is obtained; the light yellow solution reacts with n-butyl lithium, and dimethyldichlorosilane is then added for reaction, so that bis-silicon-bridged dicyclopentadiene is obtained; the bis-silicon-bridged dicyclopentadiene reacts with n-butyl lithium, halogenide is then added for reaction, n-butyl lithium is then added for reaction, and finally, another halogenide is added for reaction, so that ligand L is obtained; and cyclopentadienyl titanium trichloride or cyclopentadienyl zirconium trichloride or substituetd cyclopentadienyl titanium trichloride or substituetd cyclopentadienyl zirconium trichloride is added in the ligand L, so that the compound is obtained ...