以2-(2-吡啶基)苯并噻吩为主配体的两种蓝紫光二价铂配合物的合成与性质
Synthesis and Properties of Two Blue and Violet Light-Emitting Platinum(Ⅱ) Complexes
作者单位E-mail
王登强 云南师范大学化学化工学院, 昆明 650500  
陈宇 云南民族大学化学与环境学院, 昆明 650504  
刘小庆 云南师范大学化学化工学院, 昆明 650500  
卞健健 云南师范大学化学化工学院, 昆明 650500  
尹新颖 云南师范大学化学化工学院, 昆明 650500  
滕明瑜 云南师范大学化学化工学院, 昆明 650500 myteng@ynnu.edu.cn 
戎梅竹 云南师范大学化学化工学院, 昆明 650500 meizhurong@foxmail.com 
汪正良 云南民族大学化学与环境学院, 昆明 650504 wangzhengliang@foxmail.com 
摘要: 以2-(2-吡啶基)苯并噻吩(2-(2-pyridyl)benzothiophene,btp)作为主配体,分别以邻二氮菲[1,10]并咪唑联苯酚(2-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol,ipap)和3-甲基-6-苯基咪唑[2,1-b]噻唑(3-Methyl-6-phenylimidazo[2,1-b]thiazole,mpmt)作为辅助配体,成功合成了2个二价铂配合物[(btp)Pt(ipap)]Cl与(btp)Pt(mpmt)Cl,并得到了配合物(btp)Pt(mpmt)Cl的晶体结构。由金属-配体电荷转移引起的2种配合物发光,具有60%左右的内量子效率,发射峰在426 nm(蓝色)与381 nm(紫色)处。HOMO/LUMO轨道能级分别为-4.69 eV/-2.55 eV与-4.80 eV/-2.21 eV。单晶衍射结果表明,较低的共轭程度导致了该类配合物的短波长发射。
关键词: 有机光电功能材料  二价铂配合物  2-(2-吡啶基)苯并噻吩  邻二氮菲[1,10]并咪唑联苯酚  3-甲基-6-苯基咪唑[2,1-b]噻唑
基金项目: 国家自然科学基金(No.21461030,21662047)资助。
Abstract: With 2-(2-pyridyl)benzothiophene (btp) as the primary ligand, 2-(1H-imidazo[4,5-f] [1,10]phenanthrolin-2 -yl)phenol (ipap) and 3-methyl-6-phenylimidazo[2,1-b]thiazole (mpmt) as the auxiliary ligands, two platinum(Ⅱ) complexes,[(btp)Pt(ipap)]Cl and (btp)Pt(mpmt)Cl were synthesized, and the crystal structure of (btp)Pt(mpmt)Cl was determined. The luminescence of the complexes which is attributed to the metal-to-ligand charge transfer (MLCT) emission has internal quantum efficiency about 60% with emission peaks at 426 nm (blue) and 381 nm (purple). The orbital energy levels of HOMO/LUMO were -4.69 eV/-2.55 eV and -4.80 eV/-2.21 eV, respectively. The crystal structure discloses that the low conjugation of these complexes results in their short wavelength emission. CCDC:1978721, (btp)Pt(mpmt)Cl.
Keywords: organic photoelectric functional materials  platinum(Ⅱ) complexes  2-(2-pyridyl)benzothiophene  2-(1H-imidazo[4,5-f] [1,10]phenanthrolin-2-yl)phenol  3-methyl-6-phenylimidazo[2,1-b]thiazole
投稿时间:2020-01-24 修订日期:2020-10-28
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王登强,陈宇,刘小庆,卞健健,尹新颖,滕明瑜,戎梅竹,汪正良.以2-(2-吡啶基)苯并噻吩为主配体的两种蓝紫光二价铂配合物的合成与性质[J].无机化学学报,2021,37(1):33-38.
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