Metallocene compounds, catalysts comprising them, process for producing an olefin polymer by use of the catalysts, and olefin homo- and copolymers

A bridged metallocene having the general Formula Ia below,

• where
• M1 is a metal of Group IVb of the Periodic Table of the Elements,
• R1 and R2 are identical or different and are each a hydrogen atom, an alkyl group of from 1 to about 10 carbon atoms, an alkoxy group of from 1 to about 10 carbon atoms, an aryl group of from 6 to about 20 carbon atoms, an aryloxy group of from 6 to about 10 carbon atoms, an alkenyl group of from 2 to about 10 carbon atoms, an OH group, a halogen atom, or a NR232 group, where R32 is an alkyl group of from 1 to about 10 carbon atoms or an aryl group of from 6 to about 14 carbon atoms and R1 and R2 may form one or more ring system(s),
• R4 and R4′ are identical or different and are each a hydrogen atom, a linear, cyclic or branched hydrocarbon group optionally containing one or more hetero atoms selected from the group consisting of Si, B, Al, O, S, N, P, F, Cl and Br,
• R10 is a bridging group wherein R10 is selected from:
• where
• R40 and R41, even when bearing the same index, can be identical or different and can optionally contain heteroatoms selected from the group consisting of Si, B, Al, O, S, N, P, Cl and Br, and are each a hydrogen atom, an alkyl group having from 1 to about 30 carbon atoms, an aryl group of from 6 to about 40 carbon atoms, a fluoroalkyl group of from 1 to about 10 carbon atoms, an alkoxy group of from 1 to about 10 carbon atoms, an aryloxy group of from 6 to about 10 carbon atoms, an alkenyl group of from 2 to about 10 carbon atoms, an arylalkyl group of from 7 to about 40 carbon atoms, an alkylaryl group of from 7 to about 40 carbon atoms, a substituted or unsubstituted alkylsilyl, an alkyl(aryl)silyl group, an arylsilyl group, or an arylalkenyl group of from 8 to about 40 carbon atoms or wherein R40 and R41 together with the atoms connecting them can form one or more cyclic systems,
• x is an integer from 1 to 18,
• M12 is silicon, germanium or tin, and
• R10 can optionally link two units of the formula 1 to one another,
• R11 and R11′ are identical or different and are each a divalent C2-C40 group which together with the cyclopentadienyl ring forms a further saturated or unsaturated ring system having a ring size of from 5 to 7 atoms, where R11 and R11 optionally contain the heteroatoms Si, Ge, N, P, O or S within the ring system fused onto the cyclopentadienyl ring,
• R300 is a —CH2—CR301R302R303 or a —CH═CR302R303 group where R301, R302 and R303 are identical or different and/or R302 and R303 together may form a ring system and/or R301, R302 and R303 together may form a ring system, and R301, R302, R303 are selected from the group consisting of hydrogen atom or a linear, cyclic or branched hydrocarbon group selected from an alkyl group of from 1 to about 20 carbon atoms, an alkenyl group of from 2 to about 20 carbon atoms, an aryl group of from 6 to about 20 carbon atoms, an arylalkyl group of from 7 to about 40 carbon atoms, an alkylaryl group of from 7 to about 40 carbon atoms, or an arylalkenyl group of from 8 to about 40 carbon atoms, an alkoxy group of from 1 to about 20 carbon atoms, an aryloxy group of from 6 to about 20 carbon atoms, or a substituted or unsubstituted alkylsilyl group, an alkyl(aryl)silyl group or an arylsilyl group, wherein the groups optionally contain one or more hetero atoms selected from the group consisting of Si, B, Al, O, S, N, P, F, Cl and Br, with the proviso, that R302 and R303 are not hydrogen atoms,
• R3 has the meaning of R300 or R3 is a hydrogen atom;
• and wherein the metallocene is a compound selected from the group consisting of:
• Dimethylsilanediylbis[2-t-butylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-t-butylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-trimethylsilyl -phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclopentylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cycloheptylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-adamantylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-trimethylsilylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-(2-methoxy-2-methyl-propyl)-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-(2,6-dimethyl-benzyl)-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-(2,4,6-trimethyl-benzyl)-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo [2.2.1]heptylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo [2.2.1]heptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-t-butylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdi chloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclopentylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cyclohexylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-cycloheptylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-adamantylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride,(Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride,(Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-n-propyl-phenyl)-indenyljzirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(n-propyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-t-butylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclopentylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride,(Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-t-butyl-phenyl)- indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-sec-butyl-pheynl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4 -(3,5-dimethyl-phenyl)- indenyl ]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis [2-cyclohexylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cyclohexylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl) (3,3,3 -trifluoropropyl)silanediylbis[2 -adamantylmethyl-4 -(4 -biphenyl)-indenyl]zirconiumdicholoride,(Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-cycloheptylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-adamantylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo [2.2.1]heptylmethyl-4-(1-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(2-naphthyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo [2.2.1]heptylmethyl-4-(4-methyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-ethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-n-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-i-propyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-t-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-sec-butyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-cyclohexyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-trimethylsilyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(4-adamantyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3-biphenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-dimethyl-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-indenyl]zirconiumdichloride, (Methyl)(3,3,3-trifluoropropyl)silanediylbis[2-bicyclo[2.2.1]heptylmethyl-4-(3,5-terphenyl)-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(1-naphthyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(2-naphthyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-methyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-biphenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-ethyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-n-propyl-phenyl)-6-methylindenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-i-propyl-phenyl)-6-methylindenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-t-butyl-phenyl)-6-methylindenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-sec-butyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-cyclohexyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-trimethylsilyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-adamantyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-dimethyl-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-terphenyl)-6-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(1-naphthyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(2-naphthyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-methyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-biphenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-ethyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-n-propyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-i-propyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-t-butyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-sec-butyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-cyclohexyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-trimethylsilyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(4-adamantyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3-biphenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-dimethyl-phenyl)-7-methyl-indenyl]zirconiumdichloride, Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-di-(trifluoromethyl)-phenyl)-7-methyl-indenyl]zirconiumdichloride and Dimethylsilanediylbis[2-cyclohexylmethyl-4-(3,5-terphenyl)-7-methyl-indenyl]zirconiumdichloride.