Rationally Designed Blue Triplet Emitting Gold(III) Complexes Based on a Phenylpyridine-Derived Framework
作者:Michael Bachmann、Jasmin Terreni、Olivier Blacque、Koushik Venkatesan
DOI:10.1002/chem.201605567
日期:2017.3.17
synthesized. Tailoring the substitutions on the phenylpyridine (ppy) ligand scaffold with electron‐withdrawing fluorine groups on the phenyl ring to achieve stabilization of the HOMO and an electron‐donating dimethylamino group on the pyridine ring to destabilize the LUMO resulted in a large energy gap and bestowed on the gold(III) complexes high‐energy emission and high quantum efficiencies. The results
一系列发蓝光的磷光单环金属化的Au III配合物已成功合成。用苯环上的吸电子氟基团量身定制苯基吡啶(ppy)配体支架上的取代基,以实现HOMO的稳定化,而吡啶环上的供电子二甲基氨基基团使LUMO不稳定,这导致了较大的能隙并被赋予金(III)配合物具有高能发射和高量子效率。循环伏安法研究的结果表明,主要是氧化还原事件位于环金属化配体上。所选配合物的热重分析显示,在高达280°C的温度下具有很高的稳定性,因此,该配合物适合通过真空沉积法制造器件。对所有衍生物进行的光物理研究表明,在纯净固体,溶液,