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  • Title: Synthesis and fluorescence properties of the europium(III) chelate of a polyacid derivative of terpyridine.
    Author: Wang Z, Yuan J, Matsumoto K.
    Journal: Luminescence; 2005; 20(4-5):347-51. PubMed ID: 16134223.
    Abstract:
    A new polyacid derivative ligand of biphenyl-substituted terpyridine, [4'-(biphenyl-4'''-yl)-2,2':6'2''-terpyridine-6,6''-diyl]bis(methylenenitrilo)tetrakis(acetic acid) was synthesized, and the fluorescence properties of its Eu3+ and Tb3+ chelates were investigated. The Eu3+ chelate of the ligand is strongly fluorescent, with a fluorescence quantum yield of 0.156, molar absorption coefficient of 2.95 x 10(4) mol/L/cm at molar absorption maximum of 336 nm, and fluorescence lifetime of 1.29 ms, whereas its Tb3+ chelate is non-fluorescent.
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