Patent ID: 7893611

Claim:
A metal complex comprising the following composition: [(Pt II ) 2 (M I ) 2 (X) 2 (L) 4 (LH) 2 ] wherein M I denotes Ag I , Au I or Cu I , X is Cl, Br or I, L denotes a structure represented by the formula (1): and LH denotes a structure represented by the formula (2): wherein R 1 , R 2 and R 3 independently denote 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.