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Synthesis, luminescent properties and theoretical study of a new β-diketone and its rare earth ternary complexes

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Abstract

A new β-diketone, 1-(p-phenylethynylphenyl)-1,3-butanedione (HPB), was synthesized, and the composition of the new β-diketone was confirmed with elemental analysis, 1H NMR and IR spectra. The result of 1H NMR spectroscopy indicates that the HPB exists as an enol form isomer, which is consisted with the result of IR analysis. Tb(PB)3phen and Eu(PB)3phen have been synthesized by the reaction of HPB and 1,10-phenanthroline (phen) with Tb (III) and Eu (III) respectively and characterized by IR spectra, chemical analysis, elemental analysis and thermodynamic analysis. At room temperature, under UV light excitation, the Tb (III), Eu (III) complexes show characteristic emission of the central ions. It has been found that HPB ligand has enormous effect on the luminescent property of the rare earth complexes, matching well with the result of quantum chemistry calculation.

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Authors and Affiliations

  1. School of Chemistry, Baotou Teacher’s College, Baotou, 014030, China

    Xingwang Liu, Saishengtai Gao & Li Wang

  2. School of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China

    Jiadong Jiang

  3. Baotou Research Institute of Rare Earths, Baotou, 014030, China

    Leijun Shen

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  1. Xingwang Liu
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  2. Saishengtai Gao
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  3. Li Wang
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  4. Jiadong Jiang
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  5. Leijun Shen
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Correspondence to Xingwang Liu.

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Liu, X., Gao, S., Wang, L. et al. Synthesis, luminescent properties and theoretical study of a new β-diketone and its rare earth ternary complexes. Rare Metals 30 (Suppl 1), 289–293 (2011). https://doi.org/10.1007/s12598-011-0287-4

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  • DOI: https://doi.org/10.1007/s12598-011-0287-4

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