| 摘要 |
PURPOSE: A cyclometallated tetradentate Pt(II) complex is provided to be easily used in an OLED(Organic Light Emitting Diode). CONSTITUTION: A cyclometallated tetradentate Pt(II) complex is denoted by chemical formula I. In chemical formula I, A, B, and C are independently a 5- or 6-membered carboxycyclic or heterocyclic ring; L_1 and L_3 are independently selected from a group consisting of a single bond, BR, NR, PR, O, S, Se, C=O, S=O, SO_2, CRR', SiRR', and GeRR'; and L_2 is selected from a group consisting of BR, NR, PR, O, S, Se, C=O, S=O, SO_2, CRR', SiRR', and GeRR'. |
