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Structure and color of protonated benzimidazolyl formazans

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Abstract

Benzimidazolyl formazans were titrated spectrophotometrically and their base constants were determined. On the basis of quantum mechanical calculations of electron spectra a hypothesis concerning the chelate structure of the unsymmetrical benzimidazolyl formazans is proposed.

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  1. A. I. Yalandina, G. N. Lipunova, A. V. El'tsov, N. P. Bednyagina, S. L. Mertsalov, E. P. Darienko, and I. I. Mudretsova, Zh. Prikl. Spektrosk., No. 6, 1026 (1982).

    Google Scholar 

  2. N. P. Bednyagina, I. Ya. Postovskii, A. D. Garnovskii, and O. A. Osipov, Usp. Khim., 44, 1052 (1975).

    Google Scholar 

  3. G. A. Sereda, R. I. Ogloblina, V. N. Podchainova, and N. P. Bednyagina, Zh. Anal. Khim., 23, 1224 (1968).

    Google Scholar 

  4. Yu. I. Lifanov, V. A. Kuz'min, A. V. Karyakin, A. K. Chibisov, and I. I. Levkoev, Izv. Akad. Nauk SSSR, Ser. Khim., No. 4, 787 (1973).

    Google Scholar 

  5. N. P. Bendnyagina, E. S. Karavaeva, G. N. Lipunova, L. I. Medvedeva, and B. I. Buzyrkin, Khim. Geterotsikl. Soedin., No. 9, 1268 (1977).

    Google Scholar 

  6. Yu. A. Zhdanov, and V. I. Minkin, Correlational Analysis in Organic Chemistry in Russian], Izd. Rost. Univ., Rostov-on-Don (1966), p. 14.

    Google Scholar 

  7. G. N. Lipunova, A. P. Zeif, N. P. Bednyagina, and L. N. Shchegoleva, Zh. Org. Khim., No. 8, 1757 (1972).

    Google Scholar 

  8. A. I. Kitaigorodskii, P. M. Zorkii, and V. N. Bel'skii, Structure of Organic Substances. Data of Structural Investigations 1929–1970 [in Russian], Nauka, Moscow (1980), pp. 97, 152, 179, 527.

    Google Scholar 

  9. P. B. Fisher, B. L. Kaul, and H. Zollinger, Helv. Chim. Acta, 51, 1449 (1968).

    Google Scholar 

  10. V. I. Minkin and V. A. Bren', Reactivity of Organic Compounds [in Russian], Vol. 4, Tartu (1967), p. 112.

    Google Scholar 

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 822–826, June, 1985.

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Yalandina, A.I., Kovalev, E.G., Lipunova, G.N. et al. Structure and color of protonated benzimidazolyl formazans. Chem Heterocycl Compd 21, 684–688 (1985). https://doi.org/10.1007/BF00515073

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  • DOI: https://doi.org/10.1007/BF00515073

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