Patent ID: 8779159

Claim:
A compound represented by the following Formula (III) or a tautomer thereof: wherein in Formula (III), R 2 to R 5 each independently represents a hydrogen atom or a substituent group; R 7 represents a hydrogen or halogen atom, or an alkyl, aryl or heterocyclic group; Ma represents a metal or metal compound; X 3 represents NR (wherein, R represents a hydrogen atom or an alkyl, alkenyl, aryl, heterocyclic, acyl, alkylsulfonyl, or arylsulfonyl group) or a nitrogen, oxygen or sulfur atom; X 4 represents NRa (wheren, Ra represents a hydrogen atom or an alkyl, alkenyl, aryl, heterocyclic, acyl, alkylsulfonyl, or arylsulfonyl group) or an oxygen or sulfur atom; Y 1 represents NRc (wherein, Rc represents a hydrogen atom or an alkyl, alkenyl, aryl, heterocyclic, acyl, alkylsulfonyl, or arylsulfonyl group) or a nitrogen or carbon atom; Y 2 represents a nitrogen or carbon atom; and R 8 and R 9 each independently represents an alkyl, alkenyl, aryl, heterocyclic, alkoxy, aryloxy, alkylamino, arylamino, or heterocyclic amino group; R 8 and Y 1 may bind to each other to form a five-, six-, or seven-membered ring; R 9 and Y 2 may bind to each other to form a five-, six-, or seven-membered ring; X 5 represents a group that can bind to Ma; and a is 0, 1, or 2.