New Heteroaromatic Complexing Agents and Luminescence of Their Europium(III) and Terbium(III) Chelates |
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| Authors: | Veli-Matti Mukkala Christian Sund Marek Kwiatkowski Paavo Pasanen Marita Hgberg Jouko Kankare Harri Takalo |
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| Institution: | Veli-Matti Mukkala,Christian Sund,Marek Kwiatkowski,Paavo Pasanen,Marita Högberg,Jouko Kankare,Harri Takalo |
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| Abstract: | Twelve heteroaromatic complexing agents 9a–I were synthesized with the purpose to develop suitable labels for time-resolved luminescence-based bioaffinity assays. The relative luminescence yields, excitation maxima, and emission decay constants of their europium(III) and terbium(III) chelates were determined. According to these results, 2,2′,2″,2?-(2,2′-bipyridine-6,6′-diyl)bis(methylenenitrilo)]tetrakis (acetic acid) ( 9e ) and 2,2′,2″,2?-(2,2′:6′,2″-terpyridine-6,6″-diyl)bis(methylenenitrilo)] tetrakis(acetic acid) ( 91 ) are the most promising agents. |
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