Synthesis and luminescence properties of lanthanide complexes with a new tripodal ligands featuring salicylamide arms |
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| Authors: | Xue‐Qin Song Wen‐Kui Dong Yu‐Jie Zhang Wei‐Sheng Liu |
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| Institution: | 1. School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;2. College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou university, Lanzhou 730000, China |
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| Abstract: | A series of luminescent lanthanide complexes with a new tripodal ligand featuring salicylamide arms, 2,2′,2″‐nitrilotris(2‐furfurylaminoformylphenoxy)triethylamine (L), were synthesized and characterized by elemental analysis, IR and molar conductivity measurements. Photophysical properties of the complexes were studied by means of UV–vis absorption and steady‐state luminescence spectroscopy. Excited‐state luminescence lifetimes and quantum yield of the complexes were determined. Luminescence studies demonstrated that the tripodal ligand featuring salicylamide arms exhibits a good antennae effect with respect to the Tb(III) and Dy(III) ion due to efficient intersystem crossing and ligand to metal energy transfer. From a more general perspective, this work offers interesting perspectives for the development of efficient luminescent stains and enlarges the arsenal for developing novel luminescent lanthanide complexes of salicylamide derivatives. Copyright © 2009 John Wiley & Sons, Ltd. |
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| Keywords: | salicylamide ligand lanthanide complex luminescence properties |
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