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一系列含氟苯基异喹啉配体铱(Ⅲ)配合物及其低效率滚降性能的密度泛函理论研究(英文)

A series of iridium(Ⅲ)complexes with fluorophenyl isoquinoline ligand and low-efficiency roll-off properties: A density functional theory study

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【作者】 秦政坤; 潘子聪; 田辉; 张婉怡; 宋明星;

【Author】 QIN Zhengkun;PAN Zicong;TIAN Hui;ZHANG Wanyi;SONG Mingxing;College of Information Technology,Jilin Engineering Research Center of Optoelectronic Materials and Devices,Jilin Normal University;Siping Power Supply Company,State Grid Jilin Electric Power Co.,Ltd.;

【通讯作者】 宋明星;

【机构】 吉林师范大学信息技术学院,吉林光电材料与器件工程研究中心; 国网吉林省电力有限公司四平供电公司;

【摘要】 研究了将2个主要配体和3个辅助配体结合形成6种以过渡金属为核心原子的Ir配合物的理论意义,以确定一些合适的有机发光二极管OLED材料。通过利用电子结构、前线分子轨道、最小单线吸收、三重激发态和密度泛函理论得出的发射光谱数据,研究了这6种Ir配合物,包括(piq)2Ir(acac)、(piq)2Ir(tmd)、(piq)2Ir(tpip)、(fpiq)2Ir(acac)、(fpiq)2Ir(tmd)和(fpiq)2Ir(tpip),其中piq=1-苯基异喹啉,fpiq=1-(4-氟苯基)异喹啉,acac=(3Z)-4-羟基戊-3-烯-2-酮,tmd=(4Z)-5-羟基-2,2,6,6-四甲基庚-4-烯-3-酮,tpip=四苯基亚氨基二膦酸酯。这些配合物都具有较低的效率滚降性能,尤其是(fpiq)2Ir(tpip)。目前,一些研究人员已通过Suzuki-Miyaura偶联反应成功合成了与(piq)2Ir(acac)极为相似的化合物。

【Abstract】 We have examined the theoretical implications of combining two main and three auxiliary ligands to form several Ir(Ⅲ)complexes featuring a transition metal as their core atom to identify some appropriate organic lightemitting diode (OLED) materials.By utilizing electronic structure,frontier molecular orbitals,minimum single-line absorption,triplet excited states,and emission spectral data derived from the density functional theory,the usefulness of these Ir(Ⅲ)complexes,including (piq)2Ir(acac),(piq)2Ir(tmd),(piq)2Ir(tpip),(fpiq)2Ir(acac),(fpiq)2Ir(tmd),and(fpiq)2Ir(tpip),in OLEDs was examined,where piq=1-phenylisoquinoline,fpiq=1-(4-fluorophenyl) isoquinoline,acac=(3Z)-4-hydroxypent-3-en-2-one,tmd=(4Z)-5-hydroxy-2,2,6,6-tetramethylhept-4-en-3-one,and tpip=tetraphenylimido-diphosphonate.These complexes all have low-efficiency roll-off properties,especially (fpiq)2Ir(tpip).Some researchers have successfully synthesized complexes extremely similar to (piq)2Ir(acac) through the Suzuki-Miyaura coupling reaction.

【基金】 supported by theScience and Technology Development of Jilin Province of China(Grant No.20220101039JC);the Education Department of JilinProvince (Grant No. JJKH20230506KJ);the Natural ScienceFoundation of Shandong Province (Grant No. ZR2020BM016);the Science Fund of Shandong Laboratory of Advanced Ma-terials and Green Manufacturing (Yantai) (Grant No.AMGM2023A07)~~
  • 【文献出处】 无机化学学报 ,Chinese Journal of Inorganic Chemistry , 编辑部邮箱 ,2025年06期
  • 【分类号】O641.4
  • 【下载频次】8
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