Enhanced near-infrared-luminescence in an erbium tetrafluoroterephthalate framework

被引：242

作者：

Chen, Banglin ^{[1
]}

Yang, Yu

Zapata, Fatima

Qian, Guodong

Luo, Yongshi

Zhang, Jiahua

Lobkovsky, Emil B.

机构：

[1] Univ Texas Pan Amer, Dept Chem, Edinburg, TX 78541 USA

[2] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[3] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130021, Peoples R China

[4] Cornell Univ, Baker Lab, Dept Chem & Chem Biol, Ithaca, NY 14853 USA

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 22期

关键词：

METAL-ORGANIC FRAMEWORK; COORDINATION POLYMERS; BUILDING-BLOCKS; SOLIDS; ADSORPTION; COMPLEXES; EMISSION; LIGANDS; ND(III); DESIGN;

D O I：

10.1021/ic060568u

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two erbium - organic frameworks Er-2( BDC)(3)( DMF)(2)( H2O)(2)center dot H2O ( 1) and Er-2( BDC-F-4)(3)( DMF)( H2O)center dot DMF ( 2) ( BDC = 1,4-benzenedicarboxylate; BDC-F-4 = 2,3,5,6-tetrafluoro-1,4-benzenedicarboxylate or tetrafluoroterephthalate; DMF = dimethylformamide) have been synthesized and structurally characterized. Studies on thermal gravimetric analysis and the spectroscopic and luminescent properties of 1, 2, and their desolvated solid Er-2( BDC)(3) ( 1a) and partially desolvated solid Er-2( BDC-F-4)(3)( DMF)center dot DMF ( 2a) indicate that fluorination can significantly improve the luminescence intensity of the Er ions by reducing the fluorescence quenching effect of the vibrational C - H bond; thus, the near-IR-luminescence intensity of 2a is 3 times higher than that of 1a.

引用

页码：8882 / 8886

页数：5

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