Effect of the bipyridine ligand substituents on the emission properties of phosphorescent Ir(III) compounds
作者:Myeongbee Kim、Sihyun Oh、Jinho Kim、Ki-Min Park、Youngjin Kang
DOI:10.1016/j.dyepig.2017.07.034
日期:2017.11
effect of bipyridine ligand substituents on the emission properties of Ir(III) compounds, four homoleptic iridium(III) compounds, specifically, mer-Ir(Mepypy)3 (1), mer-Ir(Me2pypy)3 (2), fac-Ir(OMe2pypy)3 (3) and Ir(OMe2Bupypy)3 (4), where Mepypy = 2'-methyl-2,3'-bipyridine, Me2pypy = 2′,6'-dimethyl-2,3'-bipyridine, OMe2pypy = 2′,6'-dimethoxy-2,3'-bipyridine and OMe2Bupypy = 2′,6'-dimethoxy-4-tert-butyl-2
为了研究联吡啶配体取代基对Ir(III)化合物发射性质的影响,使用了四种均纯铱(III)化合物,特别是mer -Ir(Mepypy)3(1),mer -Ir(Me 2 pypy)3(2),fac -Ir(OMe 2 pypy)3(3)和Ir(OMe 2 Bupypy)3(4),其中Mepypy = 2'-甲基-2,3'-联吡啶,Me 2 pypy = 2',6'-二甲基-2,3'-联吡啶,OMe 2 pypy = 2',6'-二甲氧基-2,3'-联吡啶和OMe 2 Bupypy = 2',6'-二甲氧基-4-叔通过相应的甲基或甲氧基取代的配体与Ir [(COD)] BF 4作为起始原料的一锅反应制备-丁基-2,3'-联吡啶。在相同的反应条件下,主要的分离产物根据所用的取代基而不同。甲基取代基生成具有子午线几何形状的Ir(III)化合物,而当使用甲氧基取代基时,高收率地分离出具有面部几