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-(1Himidazo[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。
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 platinumcomplexes,[(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.
作者
王登强
陈宇
刘小庆
卞健健
尹新颖
滕明瑜
戎梅竹
汪正良
WANG Deng-Qiang;YU Chen;LIU Xiao-Qing;BIAN Jian-Jian;YIN Xin-Ying;TENG Ming-Yu;RONG Mei-Zhu;WANG Zheng-Liang(Faculty of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming 650500,China;School of Chemistry&Environment,Yunnan Minzu University,Kunming 650504,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2021年第1期33-38,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21461030,21662047)资助。