RARE EARTH METAL COMPLEX, OLEFIN POLYMERIZATION CATALYST AND METHOD FOR PRODUCING OLEFIN POLYMER

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PROBLEM TO BE SOLVED : To provide a rare earth metal complex useful as a polymerization catalyst.SOLUTION : This rare earth metal complex is expressed by formula (1) [wherein, Ln is a group 3 metal atom or lanthanoid metal atom (provided that samarium and ytterbium are excluded); R1 to R8 are each the same or different and H, a halogen atom, a 1-20C alkyl or the like; each of adjacent groups to the R1 to R8 may form a ring by optionally bonding with each other; the (m) pieces of Xs are each the same or different and a mono anion ligand; the (n) pieces of Ys are each the same or different and a neutral ligand; (m) is 0 to 3 integer; and (n) is 0 to 3 integer].COPYRIGHT : (C)2008, JPO&INPIT