Photoluminescent Europium Complexes with Oxygen and/or Nitrogen Donating Ligands

Abstract:

The reaction of EuX3 ·nH2O (X=Cl¯ , NO3¯ ), a- pyridoin anion (P) and 2,2¢-dipyridylamine in ethanol solution yields a hydroxo complex, EuP2(OH) 2(H2O) 2, which is characterized by NMR, IR, and elemental analyses. Europium complexes coordinated by nitrogen donating ligands such as 2,2¢-dipyridylamine or 2¢-hydroxypyridine are unstable in solution and are prone to decompose to europium hydroxo complex and pyridinium amine salt. The UV and PL spectra of europium complexes are reported and a decomposition mechanism is proposed.

• Periodical: Key Engineering Materials (Volumes 277-279)
• Pages: 966-971
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.277-279.966
• Online since: January 2005
• Authors: Yunghee Oh, Chul Ho Lee, Burm Jong Lee, Byoung Chul Shin
• Keywords: Complex, Europium (Eu), Photoluminescence (PL), Pyridoin

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