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Korean Society of Photoscience (한국광과학회)
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EuIII-1-Naphthoate Complex with N-Donor Ligand as a New White Luminescent Single Molecular Material

  • Eom, Yu Kyung (Global GET-Future Lab. and Department of Advanced Materials Chemistry, Korea University) ;
  • Biju, Silvanose (Global GET-Future Lab. and Department of Advanced Materials Chemistry, Korea University) ;
  • Kim, Hwan Kyu (Global GET-Future Lab. and Department of Advanced Materials Chemistry, Korea University)
  • Received : 2013.04.02
  • Accepted : 2013.04.15
  • Published : 2013.03.01
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Abstract

Two novel antenna complexes of $Eu^{III}$ with 1-naphthoic acid (NA) as primary ligand and two aromatic N-donor ligands namely N-hexyl-N-(pyridin-2-yl) pyridin-2-amine (1) and 4-((dipyridin-2-ylamino)methyl)benzoic acid (2) have been synthesized and characterized by various spectroscopic techniques. The room-temperature (298 K) photoluminescence spectrum of $Eu^{III}$ complexes composed of typical line like emissions, assigned to transitions between the first excited state $^5D_0$ to the $^7F_J$ (J = 0-4), resulting in red emission along with the residual emission from the 1-naphthoic acid moiety in the blue region. The determined CIE color coordinate value for the complex 2 is (x = 0.36, y = 0.34), which is in white region.

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References

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