Synthesis, photophysical and oxygen-sensing properties of a novel bluish-green emission Cu(I) complex

被引：93

作者：

Shi, Linfang ^{[1
,2
]}

Li, Bin ^{[1
]}

Yue, Sumei ^{[1
]}

Fan, Di ^{[1
]}

机构：

[1] Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2009年 / 137卷 / 01期

关键词：

Copper(I) complex; Oxygen-sensing; Mesoporous materials; Phosphorescence; EXCITED-STATES; BIS(PHENANTHROLINE) COMPLEX; RUTHENIUM COMPLEXES; POLYMER MATRICES; METAL-COMPLEXES; LUMINESCENCE; SENSORS; TEMPERATURE; FILMS; FLUORESCENCE;

D O I：

10.1016/j.snb.2008.12.039

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel copper(I) complex [Cu(POP)(PTZ)]BF4 (POP = bis[2-(diphenyl-phosphino)phenyl]-ether, PTZ = 5(2-pyridyl)tetrazole) has been synthesized and characterized by elemental analysis, H-1 NMR and IR. Complex [Cu(POP)(PTZ)]BF4 shows bright bluish-green emission centered at 495 nm in solid-state at room temperature, arising from metal to ligand charge-transfer (MLCT) transition. The photoluminescence quantum yield measured in air is 0.12. The excited state lifetime of [Cu(POP)(PTZ)]BF4 is on the order of microsecond indicating the presence of phosphorescent emission. The emission intensity of [Cu(POP)(PTZ)]BF4 appears to be highly sensitive to the O-2 concentration, meaning it possesses oxygen-sensing property. The sensing performances of [Cu(POP)(PTZ)]BF4/MCM-41 composite materials are evaluated and the system with 20 mg/g loading level exhibits the best sensitivity (l(0)/l(100) > 11), and the shortest response time (t(1) < 5s). which is attractive because copper(I) complexes are nontoxic and can be prepared at a fraction of the cost of noble metal-based ones. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：386 / 392

页数：7

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