A process for preparing a platinum complex represented by the following formula (1) includes reacting a compound represented by the following formula (B-2) and a compound represented by the following formula (B-2′) with a compound represented by the following formula (A-0) to obtain a compound represented by the following formula (C-0); and reacting the compound represented by the formula (C-0) with a platinum salt:
MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, AND ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Takada Saki
公开号:US20120181528A1
公开(公告)日:2012-07-19
A material for an organic electroluminescence device containing at least phosphorescent metal complex A and phosphorescent metal complex B, metal complex A and metal complex B are both organic metal complexes containing a metal having an atomic weight of 40 or more and a ligand, metal complex A has a specific structure, and metal complex B has the same structure with metal complex A except that one or more atoms directly bonding to ligand structures are substituted with atoms belonging to the same group of the atoms and having a greater atomic weight, and ratio of the content of metal complex B to the content of metal complex A is 0.005% by mass or more and 2% by mass or less.