Journal of Fluorescence

, Volume 20, Issue 2, pp 493–498 | Cite as

Synthesis and Luminescent Properties of Lanthanide Complexes with Structurally Related Novel Multipodal Ligands

  • Qing Wang
  • Xu-Huan Yan
  • Wei-Sheng Liu
  • Min-Yu Tan
  • Yu Tang
Original Paper


To explore the relationship between the structure of the ligands and the luminescent properties of the lanthanide complexes, a series of lanthanide nitrate complexes with two novel structurally related multipodal ligands, 1,3-bis{[(2’-(2-picolylaminoformyl))phenoxyl]methyl}benzene (L I ) and 1,2-bis{[(2’-(2-picolylaminoformyl))phenoxyl]methyl}benzene (L II ), have been synthesized and characterized by elemental analysis, infrared spectra and molar conductivity measurements. At the same time, the luminescent properties of the Eu(III) and Tb(III) nitrate complexes in solid state and the Tb(III) nitrate complexes in solvents were investigated at room temperature. Under the excitation of UV light, these complexes exhibited characteristic emissions of central metal ions. The lowest triplet state energy levels T1 of these ligands both match better to the lowest resonance energy level of Tb(III) than to Eu(III) ion. The influence of the structure of the ligands on the luminescent intensity of the complexes was also discussed.


Multipodal ligands Lanthanide complexes Synthesis Luminescent properties 



This work was supported by the National Natural Science Foundation of China (Project No. 20401008) and the program for New Century Excellent Talents in University (NCET-06-0902).


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Qing Wang
    • 1
  • Xu-Huan Yan
    • 1
  • Wei-Sheng Liu
    • 1
  • Min-Yu Tan
    • 1
  • Yu Tang
    • 1
  1. 1.Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouPeople’s Republic of China

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