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Low temperature laser fluorescence and excitation spectra of free base phthalocyanine in normal alkanes matrices (Shpolskii effect)

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Czechoslovak Journal of Physics B Aims and scope

Abstract

Excitation and fluorescence spectra of free base phthalocyanine were studied in matrices of normal alkanes (C8H18, C12H26, C16H34) at low temperatures (5 to 30 K). Narrow band excitation of fluorescence using a pulsed tunable dye laser was used for site selection to eliminate ambiguities due to impurities and multiple sites. Fluorescence and excitation spectra show quasiline structure. Multiplicity of 0-0 transitions depends on the chain length of normal alkanes. The spectra and frequencies of normal vibrations are compared with those of phthalocyanine in other n-alkanes (C9H20, C10H22) and noble gas matrices (Ar, Ne) under different excitation conditions.

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Authors and Affiliations

  1. Department of Chemical Physics, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 3, 121 16, Praha 2, Czechoslovakia

    J. Hála, I. Pelant, L. Parma & K. Vacek

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  1. J. Hála
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  2. I. Pelant
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  3. L. Parma
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  4. K. Vacek
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Hála, J., Pelant, I., Parma, L. et al. Low temperature laser fluorescence and excitation spectra of free base phthalocyanine in normal alkanes matrices (Shpolskii effect). Czech J Phys 32, 705–710 (1982). https://doi.org/10.1007/BF01596722

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  • DOI: https://doi.org/10.1007/BF01596722

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