METAL COMPLEX, ALTERATION PRODUCT THEREOF, AND COMPOUND USEFUL IN SAME

摘要

This compound comprises a residue of the compound represented by formula (1) and a divalent aromatic group, there are 2 to 4 of the residue, there are 1-3 of the divalent aromatic group, and the sum of the number of the residue and the divalent aromatic group is 3-5. [In formula (1), Y1-Y4 represent one of the groups represented in formula (2). In formula (2): Ra represents a hydrogen atom or a hydrocarbyl group; P1-P4 are each a group of atoms forming a heterocycle containing Y1-Y4; P5 and P6 are a group of atoms forming an aromatic ring or a heterocycle; Q1 and Q2 represent a linking group or a direct bond; and Z1 and Z2 represent a hydrogen atom or one of the groups represented in formula (3). In formula (3), Rß represents a hydrogen atom or a hydrocarbyl group.]