Abstract
WE previously reported1 a value of 1.8 × 10−3 sec. for the lifetime of the pyrene dimer in de-aerated cyclohexane solutions. This value was obtained from the exponential decay of the emission observed from a flashed solution, the order of magnitude being confirmed by photographing the emission excited by a constant intensity source through a Becquerel phosphoroscope in which the time interval between excitation and observation was ∼ 5 × 10−4 sec. Although it was not actually stated, it was implied that this lifetime referred to the total dimer emission.
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References
Stevens, B., and Hutton, E., Nature, 186, 1045 (1960).
Vavilov, S. I., and Levschin, V. L., Z. Physik., 48, 397 (1928).
Williams, R., J. Chem. Phys., 28, 577 (1958).
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STEVENS, B., HUTTON, E. Lifetime of the Pyrene Dimer. Nature 190, 166–167 (1961). https://doi.org/10.1038/190166a0
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DOI: https://doi.org/10.1038/190166a0
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