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TEMPO-Attached Pre-fluorescent Probes Based on Pyridinium Fluorophores

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Abstract

The photophysical behavior of three pyridinium-derived fluorophores, the N-aryl-2,4,6-triphenylpyridinium, the N-aryl-5,6-dihydro-2,4-diphenylbenzo[h]quinolinium and the N-aryl-5,6,8,9-tetrahydro-7-phenyldibenzo[c,h]acridinium perchlorates, was investigated. Comparison of their fluorescence quantum yields led to the preparation of a novel, more sensitive pyridinium-based, TEMPO-attached prefluorescent probe for H-abstraction processes, the N-{4-[4-(N-oxyl-2,2,6,6-tetramethylpiperidinyl)carbonylamino]phenyl}-5,6,8,9-tetrahydro-7-phenyldibenzo[c,h]-acridinium perchlorate.

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Acknowledgments

This work was financed by FONDECYT project 1110736 F. C. thanks Becas Chile. We thank Prof. J. C. Scaiano and M. Decan for allowing the photochemical and chemical characterization of compounds 1b, 2b and 3b.

Funding

This study was funded by 1110736 FONDECYT Project.

Conflict of Interest

The authors declare that they have no conflict of interest

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Authors and Affiliations

  1. Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40 Correo 33, Santiago, de Chile

    Carolina Aliaga, Susan Lühr & Rubén Oñate

  2. Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Estación Central, Santiago, Chile

    Carolina Aliaga

  3. Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile

    Freddy Celis

  4. Centro de Estudios Avanzados (CEA), Universidad de Playa Ancha, Viña del Mar, Chile

    Freddy Celis

Authors
  1. Carolina Aliaga
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  2. Freddy Celis
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  3. Susan Lühr
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  4. Rubén Oñate
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Corresponding author

Correspondence to Carolina Aliaga.

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Aliaga, C., Celis, F., Lühr, S. et al. TEMPO-Attached Pre-fluorescent Probes Based on Pyridinium Fluorophores. J Fluoresc 25, 979–983 (2015). https://doi.org/10.1007/s10895-015-1579-0

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  • DOI: https://doi.org/10.1007/s10895-015-1579-0

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