Synthesis, characterization, and photoelectric properties of iridium(<scp>iii</scp>) complexes containing an N hetero-dibenzofuran C^N ligand
作者:Zequn Ma、Chaojun Jing、Deyu Hang、Hongtao Fan、Lumeng Duan、Shuqing Fang、Li Yan
DOI:10.1039/d0ra10584h
日期:——
high-efficient green light iridium(iii) complexes were designed and synthesized, wherein 2-methyl-8-(2-pyridine) benzofuran [2,3-B] pyridine (MPBFP) is the main ligand and three β-diketone derivatives, namely 3,7-diethyl-4,6-nondiazone (detd), 2,2,6,6-tetramethyl-3,5-heptyldione (tmd) and acetylacetone (acac), are ancillary ligands. The thermal stabilities, electrochemical properties, and electroluminescence
本研究设计合成了三种高效的绿光铱(iii)配合物,其中2-甲基-8-(2-吡啶)苯并呋喃[2,3-B]吡啶(MPBFP)为主要配体,三种β-二酮衍生物,即 3,7-diethyl-4,6-nondiazone (detd)、2,2,6,6-tetramethyl-3,5-heptyldione (tmd) 和乙酰丙酮 (acac),是辅助配体。研究了(MPBFP)2 Ir(detd)、(MPBFP)2Ir(tmd)和(MPBFP)2Ir(acac)这三种配合物的热稳定性、电化学性质和电致发光(EL)性能。结果表明,三种配合物的吸收峰范围为260~340 nm,最大发射波长分别为537 nm、544 nm和540 nm。LUMO能级为-2.18 eV、-2.20 eV、-2.21 eV,HOMO能级分别为-5.30 eV、-5.25 eV和-5.25 eV。三种化合物的热分解温度分别为359