一种吡嗪铱(III)配合物的晶体结构及光物理性质

doi:10.3866/PKU.WHXB201411212

CORC > 北京大学 > 化学与分子工程学院

	一种吡嗪铱(III)配合物的晶体结构及光物理性质; Crystal Structure and Photophysical Properties of an Iridium(III) Pyrazine Complex
	韦传东 ; 葛国平 ; 李春艳 ; 雷克微 ; 梁洪泽 ; 禹钢 ; 刘志伟
刊名	物理化学学报
	2015
关键词	铱(III)配合物吡嗪磷光材料有机电致发光器件 Iridium(III) complex Pyrazine Phosphorescent material Organic light-emitting diode
DOI	10.3866/PKU.WHXB201411212
英文摘要	合成了一种铱配合物二(4,4'-二氟-5-甲基-2,3-二苯基吡嗪)(乙酰丙酮)合铱[(MDPPF)2Ir(acac)]的有机电致发光器件(OLED),利用X射线单晶衍射仪测定了该化合物的晶体结构.利用紫外-可见吸收光谱、发射光谱对其光物理性质进行研究.结果表明：(MDPPF)2Ir(acac)的单晶结构属于三斜晶系, P1空间群,晶胞参数 a=1.13984(3) nm, b=1.26718(3) nm, c=1.29541(3) nm,α=93.7181(19)°,β=101.638(2)°,γ=110.853(3)°, V=1.69336(7) nm3；(MDPPF)2Ir(acac)在二氯甲烷溶液中的发射峰为555 nm.以(MDPPF)2Ir(acac)为客体材料,制备了结构为 ITO/NPB(40 nm)/CBP：(MDPPF)2Ir(acac)(20 nm)/TPBi(10 nm)/Alq3(30 nm)/LiF(1 nm)/Al (100 nm)的一系列不同掺杂浓度器件,器件的发射峰位于558 nm,最大亮度达到32700 cd?m-2,最大电流效率44.3 cd?A-1,最大功率效率20.7 lm?W-1.; An iridium(III) complex of (MDPPF)2Ir(acac) (MDPPF=4,4'-difluoro-5-methyl-2,3-diphenylpyrazine, acac=acetylacetone) has been prepared and characterized by X-ray single crystal diffraction. The photophysical properties of (MDPPF)2Ir(acac) were investigated using UV-Vis spectroscopy and photoluminescence (PL) techniques. X-ray diffraction (XRD) studies revealed that the complex belongs to a triclinic system of the P1 space group with cel dimensions a=1.13984(3) nm, b=1.26718(3) nm, c=1.29541(3) nm, α=93.7181(19)°, β=101.638(2)°, γ=110.853(3)° and V=1.69336(7) nm3.Asolution of the (MDPPF)2Ir(acac) complex in dichloromethane was found to emit yel ow light with a maximum peak at 555 nm at room temperature. Furthermore, (MDPPF)2Ir(acac) was used as a phosphorescence dopant in organic light-emitting diodes (OLEDs) with the structures of ITO/NPB (40 nm)/CBP:(MDPPF)2Ir(acac) (20 nm)/TPBi (10 nm)/Alq3 (30 nm)/LiF (1 nm)/Al (100 nm). These devices showed yel ow emission at 558 nm, a maximum brightness of 32700 cd?m-2, current efficiency of 44.7 cd?A-1 and power efficiency of 20.7 lm?W-1.; The project was supported by the Ningbo Municipal Natural Science Foundation, China; Ningbo Social Development Project, China; K. C. Wong Magna Fund of Ningbo University, China.宁波市自然科学基金; 宁波市重大择优委托项目; 宁波大学王宽城基金; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000347055900003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 1; geguoping@nbu.edu.cn; zwliu@pku.edu.cn; 1; 17-22
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/206836]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	韦传东,葛国平,李春艳,等. 一种吡嗪铱(III)配合物的晶体结构及光物理性质, Crystal Structure and Photophysical Properties of an Iridium(III) Pyrazine Complex[J]. 物理化学学报,2015.
APA	韦传东.,葛国平.,李春艳.,雷克微.,梁洪泽.,...&刘志伟.(2015).一种吡嗪铱(III)配合物的晶体结构及光物理性质.物理化学学报.
MLA	韦传东,et al."一种吡嗪铱(III)配合物的晶体结构及光物理性质".物理化学学报 (2015).