Library preparation of derivatives of 1,4,10,13-tetraoxa-7,16-diaza-cycloctadecane and their fluorescence behavior for signaling purposes.
In the present work, we report the library preparation on solid supports of 20 derivatives of 1,4,10,13-tetraoxa-7,15-diaza-cycloctadecane 1(a-e)(w,x,y,z) carrying a fluorescent dansyl group. The sensing fluorescence behavior of these materials toward alkali and alkali earth metal ions was studied by packing the beads into a conventional flow-through cell in a FIA (flow injection analysis) approach. The fluorescence emission of these materials' responses shows a fluorescence increase to Li+, Na+, K+, NH4+, Ca2+, and Mg2+ with maximum sensitivity for Mg2+ over the rest of the ions. The analytical potential of these materials is outlined, and the sensing response mechanism, based on a photoinduced electron-transfer process, is proposed.
Rivero
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IA
Graduate Center & Research, Technological Institute of Tijuana, P.O. 1166, Tijuana, 22000 B.C. México. irivero@tectijuana.mx
Gonzalez
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Pina-Luis
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Diaz-Garcia
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ME
D000473:Alkanes / Q000032:analysis* / Q000737:chemistry*; D020650:Combinatorial Chemistry Techniques; D043844:Crown Ethers / Q000737:chemistry; D017022:Flow Injection Analysis; D005453:Fluorescence; D006571:Heterocyclic Compounds / Q000032:analysis* / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D008670:Metals / Q000737:chemistry; D015394:Molecular Structure; D013050:Spectrometry, Fluorescence; D013816:Thermodynamics
C507685:1,4,10,13-tetraoxa-7,16-diaza-cycloctadecane; D000473:Alkanes; D043844:Crown Ethers; D006571:Heterocyclic Compounds; D007477:Ions; D008670:Metals; C022883:octadecane