| abstract |
Disclosed is a transition metal complex having a tetradentate ligand which can be produced at low cost by a simple synthesis route, which forms a polymerization catalyst having a high catalytic activity capable of polymerizing an olefin having a high molecular weight. A biphenol compound represented by the general formula (1) (Q 1 and Q 2 are C1-20 divalent hydrocarbon groups, etc .; Q 3 -Q 8 are H, C1-20 hydrocarbon groups, etc .; T 1 and T 2 are C6-20 aryloxy group amino groups; Etc .; m and n are 0 to 2) [Selection figure] None |