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Synthesis of novel pseudo-Fréchet-type dendrons and their fluorescent enhancement to Eu3+ ion

Authors

  • Dongmei Xu,

    Corresponding author
    1. Key Laboratory of Organic Synthesis of Jiangsu Province, Chemical Engineering and Materials Science, College of Chemistry, Soochow University, Suzhou 215123, People's Republic of China
    • Key Laboratory of Organic Synthesis of Jiangsu Province, Chemical Engineering and Materials Science, College of Chemistry, Soochow University, Suzhou 215123, People's Republic of China
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  • Xiaohong Liu,

    1. Key Laboratory of Organic Synthesis of Jiangsu Province, Chemical Engineering and Materials Science, College of Chemistry, Soochow University, Suzhou 215123, People's Republic of China
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  • Haijie Chen,

    1. Key Laboratory of Organic Synthesis of Jiangsu Province, Chemical Engineering and Materials Science, College of Chemistry, Soochow University, Suzhou 215123, People's Republic of China
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  • Lili Qian,

    1. Key Laboratory of Organic Synthesis of Jiangsu Province, Chemical Engineering and Materials Science, College of Chemistry, Soochow University, Suzhou 215123, People's Republic of China
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  • Keda Zhang

    1. Key Laboratory of Organic Synthesis of Jiangsu Province, Chemical Engineering and Materials Science, College of Chemistry, Soochow University, Suzhou 215123, People's Republic of China
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Abstract

Novel pseudo-Fréchet-type dendrons with 1,3,5-triazine structure G1.0(NOT) and G2.0(NOT) were synthesized under mild conditions by cyanuric chloride, β-naphthol, and 3,5-dihydroxybenzyl alcohol with the yields of 96.3 and 85.6%. The structure of the dendrons was characterized by elementary analysis, IR spectrum, 1H-NMR, and FAB-MS. The dendrons had good thermo stability and solubility. They could partially transfer their absorbed energy to Eu3+ ion in tetrahydrofuran/acetone solutions. When the concentration of G1.0(NOT), G2.0(NOT), and Eu3+ ion was 5 × 10−4 mol/L, G1.0(NOT) could enhance the fluorescent intensity of Eu3+ ion at 613 nm by 4.2-fold, whereas G2.0(NOT) could enhance the fluorescent intensity of Eu3+ ion at 465 and 613 nm by 18.6- and 11.7-fold, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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