Induced Intersystem Crossing at the Fluorescence Quenching of Laser Dye 7-Amino-1,3-Naphthalenedisulfonic Acid by Paramagnetic Metal Ions View Full Text


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Article Info

DATE

2009-10-16

AUTHORS

Valery V. Volchkov, Vladimir L. Ivanov, Boris M. Uzhinov

ABSTRACT

The fluorescence and triplet state quenching of 7-amino-1,3-naphthalenesulfonic acid by paramagnetic metal ions have been investigated in an aqueous medium. The basic mechanism of the fluorescence quenching involves the static and dynamic electron transfer to the paramagnetic cation. The induced S1→T1 intersystem crossing at fluorescence quenching of the fluorophore by Cu2+ cation has been found. There is a correlation between triplet state quenching rate constants and values of the efficient paramagnetic susceptibility and spin of the cations. The rate constants for the quenching pathways have been calculated. More... »

PAGES

299-303

References to SciGraph publications

  • 1995-09. Effect of Gd3+ ions on the luminescence of opa-Gly in JOURNAL OF APPLIED SPECTROSCOPY
  • 1983. Principles of Fluorescence Spectroscopy in NONE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10895-009-0555-y

    DOI

    http://dx.doi.org/10.1007/s10895-009-0555-y

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1051903673

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/19834791


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