Patent ID: 7556911

Claim:
A titanocene based compound characterized by being represented by the following general formula (I): wherein R 1 and R 2 each independently represents any of cyclopentadienyl, indenyl and tetrahydroindenyl groups which may have substituents, or may be linked one another via a bivalent linking group X; X represents any of a direct bond, an oxygen atom and a sulfur atom, or represents any of chain or cyclic alkylene, alkylidene and arylene which may contain heteroatoms; Ar 1 and Ar 2 each independently represents any of 6-membered carbocyclic, 5-membered heterocyclic and 6-membered heterocyclic aromatic rings where at least one position other than a carbon bond with Ti has been substituted with a group represented by the following general formula (II): where R 3 represents any of a hydrogen atom, and alkyl, alkenyl, cycloalkyl, aryl and aralkyl groups which may have substituents, or may be bound to an aromatic ring to form a 5-membered or 6-membered condensed ring containing a carbonyl group.