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NIR luminescence of a series of benzoyltrifluoroacetone erbium complexes

机译:一系列苯甲酰下氟丙酮铒配合物的奈尔发光

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摘要

A series of five beta-diketone erbium complexes with various azacyclo-auxiliary ligands, namely, Er(Hbta)(3)(H2O)(2) (1), Er(Hbta)(3)(bpy) (2), Er(Hbta)(3)(phen) (3), Er(Hbta)(3)(dpq) (4) and Er(Hbta)(3)(dppz) (5) (Hbta = benzoyltrifluoroacetone, bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, dpq = pyrazino [2,3-f][1,10]phenanthroline, dppz = dipyrido[3,2-a:2',3'-c]phenazine) have been isolated and characterized by X-ray crystallographic analysis. Near-infrared luminescence analysis reveals that all complexes 1-5 exhibit strong NIR luminescence of Er(III) ions around 1535 nm with the highest lifetime of 4.532 mu s, quantum yield of 3.24 x 10(-4) and broadband emission around 1.5 mu m for complex 5, in which the azacyclo-auxiliary ligand absorbs and transfers the energy leading to complete quenching of the ligand-associated visible emission. The energy transfer processes among benzoyltrifluoroacetone, the Er(III) ion and the auxiliary ligands in complexes 1-5 have been investigated.
机译:一系列五种Beta-Diketone铒配合物,具有各种氮杂环 - 辅助配体,即ER(HBTA)(3)(H2O)(2)(1),ER(HBTA)(3)(BPY)(2),ER (HBTA)(3)(phen)(3),ER(HBTA)(3)(DPQ)(4)和ER(HBTA)(3)(DPPZ)(5)(HBTA =苯甲酰氟丙酮,BPY = 2,2 '-Biphyridine,Phen = 1,10-菲啉,DPQ =吡唑啉[2,3-F] [1,10]菲咯啉,DPPZ = DiPyrido [3,2-A:2',3'-C]吩嗪)具有 被X射线晶体分析分离并表征。 近红外发光分析表明,所有复合物1-5都表现出ER(III)离子的强烈鼻炎发光,约1535nm,最高寿命为4.532亩,量子收率为3.24×10(-4),宽带发射约1.5亩 M对于复合物5,其中氮杂环 - 辅助配体吸收并转移能量,导致能够完全淬火配体相关的可见发射。 研究了苯甲酰氟丙酮,ER(III)离子和复合物中的辅助配体中的能量转移方法。

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  • 来源
    《RSC Advances》 |2015年第81期|共6页
  • 作者单位

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

    Heilongjiang Univ Sch Chem &

    Mat Sci Key Lab Funct Inorgan Mat Chem MOE Harbin 150080 Heilongjiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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