Enhancing the luminescence properties and stability of cationic iridium(iii) complexes based on phenylbenzoimidazole ligand: a combined experimental and theoretical study
作者:Guo-Gang Shan、Hai-Bin Li、Hai-Zhu Sun、Hong-Tao Cao、Dong-Xia Zhu、Zhong-Min Su
DOI:10.1039/c3dt50358e
日期:——
Herein we designed and synthesized a series of cationiciridium(III) complexes with a phenylbenzoimidazole-based cyclometalatedligand, containing different numbers of carbazole moieties from zero to three (complexes 1–4). The photophysical and electrochemical properties of this series have been systematically investigated. The complexes exhibit strong luminescence in both solution and in neat films
Facile Synthesis of Benzimidazole and Benzothiazole Compounds Mediated by a Zinc Precatalyst Supported by an Iminopyrrole‐Morpholine Ligand
作者:Kulsum Bano、Devadkar Ajitrao Kisan、Tarun K. Panda
DOI:10.1002/ejic.202200023
日期:2022.4.8
Three zinc complexes supported by a neutral iminopyrrole-morpholine ligand were synthesized and applied as competent catalysts in the formation of a wide range of benzimidazole and benzothiazole derivatives via aerobic oxidative condensation of various benzylamines with o-phenylenediamine, N-phenyl-o-phenylenediamine, and o-mercaptoaniline.
Phosphorescent Cu(I) Complexes of 2-(2‘-pyridylbenzimidazolyl)benzene: Impact of Phosphine Ancillary Ligands on Electronic and Photophysical Properties of the Cu(I) Complexes
作者:Theresa McCormick、Wen-Li Jia、Suning Wang
DOI:10.1021/ic051412h
日期:2006.1.1
The emission of the new coppercomplexes has an exceptionally long decay lifetime (>200 micros). Ab initio MO calculations established that the lowest electronic transition in the copper(I) complexes is MLCT in nature. The electronic and photophysical properties of the new mononuclear Cu(I) complexes were compared with those of the corresponding polynuclear Cu(I) complexes based on the 2-(2'-dipyridyl)benzimidazolyl
Sublimable cationic iridium(<scp>iii</scp>) complexes with large steric hindrance for high-performance organic light-emitting diodes
作者:Ruihuan Liu、Dongxin Ma、Chen Zhang、Lian Duan
DOI:10.1039/c9dt00495e
日期:——
A series of novel sublimable cationic iridium(III) complexes with 2-phenylquinoline as the major cyclometalated ligand and imidazole-type ancillary ligands were designed and synthesized. It is found that complexescontaining active hydrogen atoms in the ancillary ligands exhibited poor electroluminescence performance. By introducing a phenyl group into the ancillary ligands to protect the active hydrogen
development of efficient luminescent materials are the driving force behind organic light‐emitting diodes (OLEDs). Sublimable ionic transition‐metal complexes (iTMCs) have emerged as a large family of new emissive dopants applied for vacuum‐deposited OLEDs, while the achievement of excellent performance remains arduous. A series of novel sublimable cationiciridium(III) complexes have been designed and
高效发光材料开发的巨大进步是有机发光二极管(OLED)背后的驱动力。可升华的离子过渡金属络合物(iTMC)已作为一大批应用于真空沉积OLED的新型发光掺杂剂出现,而要实现出色的性能仍然是艰巨的。已经设计并合成了一系列新型的可升华的阳离子铱(III)配合物,其中包含咪唑型辅助配体和四苯基硼酸酯型负平衡离子,具有较大的位阻和良好分散的电荷。对光物理性质,电化学行为和热稳定性进行了充分的研究和讨论,然后通过理论计算进行了证明。其黄色和橙色发光OLED是通过真空蒸发沉积法制造的,3 cd m -2和低于2.4 V的低开启电压,这是基于iTMC的类似磷光OLED的最佳结果。这项工作表明可升华的iTMC在最先进的真空沉积光电器件中的有前途的应用。