Patent ID: 8653290

Claim:
A metallocene complex represented by the following general formula (I), where: M represents samarium, neodymium, praseodymium, gadolinium, terbium, cerium, holmium, scandium, or yttrium; Cp R independently represents an unsubstituted or substituted indenyl group, and is represented by the formula C 9 H 7−x R x wherein x represents an integer of 0 to 7 or is represented by the formula C 9 H 11−x R x wherein x represents an integer of 0 to 11, and R independently represents a hydrocarbyl group or a trimethyl silyl group; R a to R f independently represents hydrogen or an alkyl group having 1 to 3 carbon atoms; L represents a neutral Lewis base; and w represents an integer of 0 to 3.