Patent ID: 7166684

Claim:
A transition metal compound represented by the following general formula (2): (C 5 R 16 R 17 R 18 R 19 R 20 )(C 5 R 21 R 22 R 23 R 24 R 25 )(C 5 H 2 R 26 R 27 R 28 )M 2 H Formula (2), wherein C 5 R 16 R 17 R 18 R 19 R 20 , C 5 R 21 R 22 R 23 R 24 R 25 and CH 5 H 2 R 26 R 27 R 28 denote cyclopentadienyl groups or substituted cyclopentadienyl groups, respectively; R 16 , R 17 , R 18 , R 19 , R 20 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 and R 28 are any of hydrogen, a hydrocarbon group having a substituent of a hydrocarbon having 1 to 30 carbon atoms, which are the same or different; among them, R 16 , R 17 , R 18 , R 19 , R 20 , or R 21 , R 22 , R 23 , R 24 , R 25 , or R 26 , R 27 , R 28 can be bonded to one another forming a cyclic hydrocarbon group, including a polycyclic structure; provided that at least one of R 16 , R 17 , R 18 , R 19 , R 20 , R 21 ,R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , and R 28 is a substituent other than hydrogen; and M 2 denotes a transition metal of group 4 of the periodic table.