Patent ID: 8461365

Claim:
A metallocene complex represented by the following general formula [I]: wherein M is Ti, Zr or Hf, Y is a carbon, a silicon or a germanium, X 1 and X 2 are each independently a ligand forming σ-bond with M, R 1 and R 11 may be each other same or different, and are hydrogen, alkyl group having 1 to 6 carbon number, alkoxy group having 1 to 6 carbon number, furyl group, thienyl group, furyl group having substituent, or thienyl group having substituent, and one or both of R 1 and R 11 are any of furyl group, thienyl group, furyl group having substituent, or thienyl group having substituent, R 7 and R 17 may be the same or different, and are hydrogen, halogen atom, alkyl group having 1 to 6 carbon number, alkoxy group having 1 to 6 carbon number, alkenyl group having 1 to 6 carbon number, halogen containing alkyl group having 1 to 6 carbon number, alkyl group having 1 to 6 carbon number containing trialkylsilyl group, silyl group containing hydrocarbon group having 1 to 6 carbon number, aryl group having 6 to 18 carbon number or halogen-containing aryl group having 6 to 18 carbon number, wherein when any one of R 7 and R 17 is hydrogen, the other group is a substituent group except hydrogen, R 2 , R 3 , R 4 , R 5 , R 6 , R 8 , R 9 , R 12 , R 13 , R 14 , R 15 , R 16 , R 18 and R 19 may be same or different, and are hydrogen, halogen atom, alkyl group having 1 to 6 carbon number, alkoxy group having 1 to 6 carbon number, alkenyl group having 1 to 6 carbon number, halogen-containing alkyl group having 1 to 6 carbon number, alkyl group having 1 to 6 carbon number containing trialkylsilyl group, silyl group containing hydrocarbon group having 1 to 6 carbon number, aryl group having 6 to 18 carbon number, halogen-containing aryl group having 6 to 18 carbon number, or heterocyclic group constituting 5-membered ring or 6-membered ring which may have substituent, in addition, 6 to 7-membered ring may be formed together with both of the adjacently located R and 6 to 7-membered ring may have unsaturated bond, R 10 and R 20 may be same or different, and are hydrogen, alkyl group having 1 to 6 carbon number, alkenyl group having 1 to 6 carbon number, halogen containing alkyl group having 1 to 6 carbon number, alkyl group having 1 to 6 carbon number containing trialkylsilyl group, silyl group containing hydrocarbon group having 1 to 6 carbon number, aryl group having 6 to 18 carbon number, halogen-containing aryl group having 6 to 18 carbon number, or heterocyclic group forming 5-membered ring or 6-membered ring which may have substituent, 4 to 7-membered ring may be formed together with R 10 and R 20 .