Abstract
It is shown that the frequencies of the long-wave band in the electronic spectra of tetrazolium salts correlate with Brown's electrophilic σ+ constants. The color of the tetrazolium salts is due to a polar transition associated with transfer of charge from the phenyl ring attached to the N3 atom to the central tetrazole ring.
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See [1] for Communication 23.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 111–114, January, 1980.
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Shchipanov, V.P. Tetrazole derivatives. Chem Heterocycl Compd 16, 94–97 (1980). https://doi.org/10.1007/BF00475402
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DOI: https://doi.org/10.1007/BF00475402