Three Luminescent Dinuclear Copper(I) Complexes with P∧N Ligands: Synthesis, Photophysical Properties, DFT Calculations and AIE Behavior

被引：4

作者：

Dou, Shao-Bin ^{[1
]}

Xiao, Lu ^{[1
]}

Li, Fan ^{[1
]}

Zhang, Yi-Zheng ^{[1
]}

Lu, Xue ^{[1
]}

Yang, Jian-Ming ^{[1
]}

Yang, Jie ^{[1
]}

Wu, Min ^{[1
]}

Niu, Zhi-Gang ^{[1
,2
]}

Li, Gao-Nan ^{[1
,2
]}

机构：

[1] Hainan Normal Univ, Key Lab Electrochem Energy Storage & Energy Conve, Haikou 571158, Hainan, Peoples R China

[2] Key Lab Electrochem Energy Storage & Light Energy, Haikou 571158, Hainan, Peoples R China

来源：

CHEMISTRYSELECT | 2021年 / 6卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Copper; Dinuclear complexes; Photoluminescence; AIE; Density functional calculations; ACTIVATED DELAYED FLUORESCENCE; TRANSFER RADICAL-ADDITION; CU-I COMPLEXES; CU(I) COMPLEXES; CUPROUS COMPLEXES; EMISSION; PHOTOSENSITIZERS; DESIGN;

D O I：

10.1002/slct.202101357

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three new BPTA-bridged binuclear copper(I) complexes bearing three different diphosphine ligands, namely, [(Cu-I)(2)(Xantphos)(2)(BPTA)](BF4)(2) (Cu1), [(Cu-I)(2)(Dppp)(2)(BPTA)](BF4)(2) (Cu2), and [(Cu-I)(2)(Binap)(2)(BPTA)](BF4)(2) (Cu3), have been synthesized and characterized. The X-ray structure analyses of complex Cu3 show that the central copper(I) ion adopts a distorted tetrahedral geometry. Complexes Cu1 and Cu2 exhibit greenish-yellow emission with excited-state lifetime (13 mu s and 27 mu s) and photoluminescence quantum yields (6.86 % and 0.62 %) at room temperature in the solid state. Emission decay measurement and theoretical calculation suggest that the transition nature of their emission could be assigned to (MLCT)-M-3/(LC)-L-3 excited states. More interesting, complexes Cu1-Cu3 are weakly emissive in solution but become strongly luminescent in solid state, so it has the aggregation induced emission (AIE) behavior.

引用

页码：5295 / 5301

页数：7

共 44 条

[1]

[Anonymous], 2015, ANGEW CHEM-GER EDIT, V127, P8060

[2]

[Anonymous], 2015, ANGEW CHEM-GER EDIT, V127, P7105

[3]

[Anonymous], 2015, ANGEW CHEM, V127, P4320

[4] Highly luminescent CuI complexes for light-emitting electrochemical cells [J].