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Electron density distribution in heterocyclic systems with two adjacent nitrogen atoms

VI. Dipole moments of some bispyrazole systems and multicondensed systems containing the pyrazole ring

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Dipole moments found are compared with those calculated vectoran ially. Bis(3, 5-dimethylpyrazol-4-yl) has a constant dipole moment, which indicates inequality of nitrogen atoms in the pyrazole ring. Dipole moments of condensed pyrazolopyridines can be found by adding vectorially the dipole moments of pyridine and pyrazole. Involvement of a nitrogen atom and formation of two aromatic rings does not significantly alter the dipole moment of pyrazolo[2, 3-a]-pyridine as compared with pyrazole.

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Authors and Affiliations

  1. Institute of Organic Synthesis, AS Latvian SSSR, Riga

    S. A. Hiller, I. B. Mazheika & I. I. Grandberg

  2. Lomonosov Moscow State University, USSR

    S. A. Hiller, I. B. Mazheika & I. I. Grandberg

Authors
  1. S. A. Hiller
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  2. I. B. Mazheika
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  3. I. I. Grandberg
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Additional information

For Part V see [1].

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Hiller, S.A., Mazheika, I.B. & Grandberg, I.I. Electron density distribution in heterocyclic systems with two adjacent nitrogen atoms. Chem Heterocycl Compd 3, 699–702 (1967). https://doi.org/10.1007/BF00468351

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  • DOI: https://doi.org/10.1007/BF00468351

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