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Luminescence-spectral and acid-base characteristics of 3-aryl-7-diethylaminocoumarins

✍ Scribed by N. S. Patalakha; D. S. Yufit; M. A. Kirpichenok; N. A. Gordeeva; Y. T. Struchkov; I. I. Grandberg

Publisher
Springer US
Year
1991
Tongue
English
Weight
551 KB
Volume
27
Category
Article
ISSN
0009-3122

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✍ L. A. Karandashova; M. A. KirpichΓ‹nok; D. S. Yufit; Yu. T. Struchkov; I. I. Gran πŸ“‚ Article πŸ“… 1990 πŸ› Springer US 🌐 English βš– 581 KB

The absorption and luminescence spectra of a series of 4,7-diaminocoumarins have been investigated in ethanol and acetonitrile solution. The pkJ and pkJ 1 values for several of the compounds have been measured. It has been found that the site of primary protonation is the nitrogen atom in the 7-posi