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Spectral-luminescence properties and acid-base properties of luminophores obtained from 3-iodo-7-dialkylaminocoumarins

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The absorption and fluorescence spectra of the conjugate acids of 7-dialkylaminocoumarins were studied, and their pKa I, pKa II, and pKa * values were determined. It was established with the aid of PMR data that the primary protonation generally involves the nitrogen-containing substituent in the 3 or 4 position, while the secondary protonation involves the nitrogen atom in the 7 position.

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Authors and Affiliations

  1. K. A. Timiryazev Moscow Agricultural Academy, 127550, Moscow

    M. A. Kirpichënok, N. S. Patalakha, L. Yu. Fomina & I. I. Grandberg

Authors
  1. M. A. Kirpichënok
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  2. N. S. Patalakha
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  3. L. Yu. Fomina
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  4. I. I. Grandberg
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1170–1175, September, 1991.

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Kirpichënok, M.A., Patalakha, N.S., Fomina, L.Y. et al. Spectral-luminescence properties and acid-base properties of luminophores obtained from 3-iodo-7-dialkylaminocoumarins. Chem Heterocycl Compd 27, 934–939 (1991). https://doi.org/10.1007/BF00484353

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  • DOI: https://doi.org/10.1007/BF00484353

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