Abstract: There is provided a novel luminescent metal complex. A metal complex having a composition of [(PtII)2(MI)2(X)2(L)4(LH)2], where MI denotes AgI, AuI or CuI, X denotes Cl, Br or I, L denotes a structure represented by the formula (1), and LH denotes a structure represented by the formula (2).

Abstract: There is provided a novel luminescent metal complex. A metal complex having a composition of [(PtII)2(MI)2(X)2(L)4(LH)2], where MI denotes AgI, AuI or CuI, X denotes Cl, Br or I, L denotes a structure represented by the formula (1), and LH denotes a structure represented by the formula (2).

Abstract: An object of the present invention is to provide a novel metal complex. A metal complex having a composition of [(PtII)2(MI)4(L)8], where MI is H+, AgI, AuI or CuI, and L is a compound represented by the following chemical formula. A metal complex having a composition of [(PtII)2(MI)4(X)2(L)6], where MI is AgI, AuI or CuI, X is Cl?, Br? or I?, and L is a compound represented by the following chemical formula. In the formula, R1, R2 and R3 are independently a hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, a hydroxyl group, a phenyl group, a trifluoromethylphenyl group, a pentafluorophenyl group, a naphthyl group, a methyl group, an ethyl group, an i-propyl group, a t-butyl group, a trifluoromethyl group, a hydroxymethyl group or a hydroxyethyl group. At least one of R1, R2 and R3 in the formula is not a hydrogen atom.