Patent ID: 8124777

Claim:
A complex compound (I) obtained by coordinating a ligand represented by the formula (II) and a ligand represented by the formula (III) to a metal atom, wherein Y 1 and Y 2 are each a group represented by the formula (IV), R 1 and R 2 each bind to Ar, Ar represents thiophene, p=1, R 1 and R 2 each independently represent a protogenic group or a salt thereof, at least one of R 1 and R 2 is a protogenic group, R 3 and R 4 each independently represent an aprotogenic group, R 3 and R 4 may be bound together, A and B each independently represent a group including an element of group 14, 15, or 16 of the Periodic Table, m and n each independently represent an integer of 0 to 2, a, b, c, and d each independently represent an integer of 0 to 2, and a+b≧1.