Synthesis, structures and luminescent properties of red emissive neutral copper(I) complexes with bisphosphino-substituted benzimidazole

被引：19

作者：

Song, Yi-Le ^{[1
]}

Jiao, Bing-Jing ^{[1
]}

Liu, Chun-Mei ^{[1
]}

Peng, Xin-Lan ^{[1
]}

Wang, Meng-Meng ^{[1
]}

Yang, Yan ^{[1
]}

Zhang, Bin ^{[1
]}

Du, Chen-Xia ^{[1
]}

机构：

[1] Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2020年 / 112卷

基金：

中国国家自然科学基金;

关键词：

Copper(I) complex; Phosphorescence; Organic light-emitting diodes (OLEDs); DELAYED FLUORESCENCE; CUPROUS COMPLEXES; CU(I) COMPLEXES; LIGANDS; DYNAMICS; DESIGN; PHOTOSENSITIZERS; PYRIDYL;

D O I：

10.1016/j.inoche.2019.107689

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three neutral copper(I) complexes have been synthesized and characterized, based on two iminephosphine P boolean AND N boolean AND P and P boolean AND N ligands. X-ray crystallographic analysis reveals that the Cu(I) centers are chelated by the tridentate or bidentate ligands, forming distorted tetrahedron configurations. All the complexes show red emissions in powder at 293 K with moderate luminescent quantum yields of 11.8%, 1.2% and 16.6% for CuL1I, CuL1Br and (CuL2I)(2), respectively. CuL1I exhibits very good thermal stability, so vapor deposited OLED based on CuL1I has been fabricated. The device displays pure red emission at 645 nm with a maximal luminance of 1970 cd m(-2) and a maximum EQE of 2.68%.

引用

页数：5

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