Blue Luminescent 2-(2‘-Pyridyl)benzimidazole Derivative Ligands and Their Orange Luminescent Mononuclear and Polynuclear Organoplatinum(II) Complexes
作者:Qin-De Liu、Wen-Li Jia、Suning Wang
DOI:10.1021/ic0487530
日期:2005.3.1
Five new 2-(2'-pyridyl)benzimidazole derivative ligands, 1,4-bis[2-(2'-pyridyl)benzimidazolyl]benzene (1,4-bmb), 4,4'-bis[2-(2'-pyridyl)benzimidazolyl]biphenyl (bmbp), 1-bromo-4-[2-(2'-pyridyl)benzimidazolyl]benzene (Brmb), 1,3-bis[2-(2'-pyridyl)benzimidazolyl]benzene (1,3-bmb), and 1,3,5-tris[2-(2'-pyridyl)benzimidazolyl]benzene (tmb), have been synthesized by Ullmann condensation methods. The corresponding
五个新的2-(2'-吡啶基)苯并咪唑衍生物配体,1,4-双[2-(2'-吡啶基)苯并咪唑基]苯(1,4-bmb),4,4'-双[2-(2 '-吡啶基)苯并咪唑基]联苯(bmbp),1-溴-4- [2-(2'-吡啶基)苯并咪唑基]苯(Brmb),1,3-双[2-(2'-吡啶基)苯并咪唑基]苯(1,3-bmb)和1,3,5-三[2-(2'-吡啶基)苯并咪唑基]苯(tmb)已通过Ullmann缩合方法合成。相应的单核和多核PtII复合物Pt2(1,4-bmb)Ph4(1),Pt2(bmbp)Ph4(2),Pt(Brmb)Ph2(3),Pt2(1,3-bmb)Ph4(4 )和Pt3(tmb)Ph6(5),是通过适当的配体与[PtPh2(SMe2)] n反应而获得的。通过单晶X射线衍射确定游离配体1,4-bmb,bmbp和tmb以及配合物1-3的结构。所有配体在环境温度下在光谱的紫色/蓝色区域中显示荧光发射,而在77