中文摘要：

包含基于 pyrazol 的 diketone 衍生物的辅助 ligand 的红射出的 heteroleptic cyclometalated 铂(II ) 建筑群被综合。它的 optophysical 和 electroluminescent 性质被学习。比作报导(piq ) 磅(acac ) 建筑群，这铂(II ) 建筑群在 300450 nm，低 LUMO 精力水平和改进 electroluminescent 性质展出了一个转移蓝色的紫外吸收乐队。用这铂(II ) 象作为一个主人矩阵做 emitter 和计策(9,9-dioctylfluorene ) 和 2-tert-butylphenyl-5-phenyl-1,3,4-oxadiazole 的混合的一个单身者复杂，制作聚合物轻射出的设备在 601 nm 在 648 nm 和一个肩膀与一座山峰显示了浸透的红排放。而且，铂(II ) 熄灭建筑群的排放显著地由于非平面的 pyrazol 组的介绍在高当前的密度在这些设备被压制进辅助 ligand。

英文摘要：

A red-emitting heteroleptic cyclometalated platinum（II） complex containing an ancillary ligand of pyra- zol-based diketone derivative was synthesized. Its optophysical and electroluminescent properties were studied. Compared to the reported （piq）Pt（acac） complex, this platinum（II） complex exhibited a blue-shifted UV absorption band at 300--450 nm, a low LUMO energy level and improved electroluminescent property. Using this platinum（II） complex as a single doping emitter and a blend of ploy（9,9-dioctylfluorene） and 2-tert-butylphenyl-5-phenyl- 1,3,4-oxadiazole as a host matrix, the fabricated polymer light-emitting devices displayed saturated red emission with a peak at 648 um and a shoulder at 601 nm. Furthermore, the emission quenching of the platinum（II） complex was significantly suppressed in these devices at high current density due to an introduction of the non-planar pyra- zol group into the ancillary ligand.