Luminescence of 5-Phenyltetrazole and its Derivatives. Part II. Phosphorescence

Ignacy Gryczynski, A. Kawski, Z. Grzonka, A. Rażyńska

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The phosphorescence spectra, mean lifetimes of phosphorescence and ratios of phosphorescence/fluorescence quantum yields have been measured for 5-phenyitetrazole and its three methyl derivatives in a polyvinyl alcohol film over the temperature range of (77−250) K. Temperature responses of the non-radiative intersystem crossing constant. KST, and the non-radiative triplet state deactivation constant. km, have been investigated on the basis of these measurements. The energy of activation for the non-radiative transitions has been determined. With the methyl 5-phenyltetrazoles. the thermal deactivation of the triplet state, contrary to the intersystem crossing, has been found to be influenced by the position of the methyl substituent in the phenyl ring.

Original languageEnglish
Pages (from-to)556-559
Number of pages4
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume39
Issue number6
DOIs
StatePublished - 1 Jun 1984

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Phosphorescence
Luminescence
phosphorescence
luminescence
Derivatives
Derivative
deactivation
atomic energy levels
Polyvinyl Alcohol
polyvinyl alcohol
Quantum yield
Alcohol
Fluorescence
Activation
Lifetime
Chemical activation
activation
Ring
life (durability)
fluorescence

Cite this

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abstract = "The phosphorescence spectra, mean lifetimes of phosphorescence and ratios of phosphorescence/fluorescence quantum yields have been measured for 5-phenyitetrazole and its three methyl derivatives in a polyvinyl alcohol film over the temperature range of (77−250) K. Temperature responses of the non-radiative intersystem crossing constant. KST, and the non-radiative triplet state deactivation constant. km, have been investigated on the basis of these measurements. The energy of activation for the non-radiative transitions has been determined. With the methyl 5-phenyltetrazoles. the thermal deactivation of the triplet state, contrary to the intersystem crossing, has been found to be influenced by the position of the methyl substituent in the phenyl ring.",
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Luminescence of 5-Phenyltetrazole and its Derivatives. Part II. Phosphorescence. / Gryczynski, Ignacy; Kawski, A.; Grzonka, Z.; Rażyńska, A.

In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences, Vol. 39, No. 6, 01.06.1984, p. 556-559.

Research output: Contribution to journalArticle

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