Highly efficient phosphorescent materials based on Ir(<scp>iii</scp>) complexes-grafted on a polyhedral oligomeric silsesquioxane core
作者:Tianzhi Yu、Zixuan Xu、Wenming Su、Yuling Zhao、Hui Zhang、Yanjun Bao
DOI:10.1039/c6dt02383e
日期:——
A new iridium(III) complex containing a coumarin derivative as the cyclometalated ligand (L) and a carbazole-functionalized β-diketonate (Cz-acac-allyl) as the ancillary ligand, namely, Ir(III) bis(3-(pyridin-2-yl)coumarinato-N,C4)(1-(9-butyl-9H-carbazol-3-yl)hept-6-ene-1,3-dionato-O,O) [Ir(L)2(Cz-acac-allyl)], was firstly synthesized as the emissive iridium(III) complex. Then three new phosphorescent
一种新的铱(III)配合物,其中包含香豆素衍生物作为环金属化配体(L)和咔唑官能化的β-二酮酸(Cz-acac-烯丙基)作为辅助配体,即Ir(III)bis(3-(吡啶) -2-yl)coumarinato- N,C 4)(1-(9-butyl-9 H -carbazol-3-yl)hept-6-ene-1,3-dionato- O,O)[Ir(L)2(Cz-acac-allyl)]首次合成为发光铱(III)配合物。然后是三种新的磷光多面体低聚倍半硅氧烷(POSS)材料,包括发光的Ir(III)在铂(0)-1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷(Pt-dvs )作为催化剂。这些磷光POSS材料具有许多优点,包括无定形性质,良好的热稳定性和在常见溶剂中的良好溶解性,以及通过柱色谱法获得的高纯度。溶液和固态POSS材料的光致发光光谱表明Ir(III),因为POSS内核庞大,单元复杂,