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Dipole moments and spectroscopic properties of methyl-4-nitropyridine N-oxides

Die polaren und spektroskopischen Eigenschaften von Methyl-4-nitropyridin-N-oxiden

  • Anorganische Und Physikalische Chemie
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Summary

Molecular dipole moments and dipole moments of interaction of seven methyl derivatives of 4-nitropyridine N-oxides were determined in benzene solution. Polar and spectroscopic (13C NMR and UV/Vis) manifestations of intramolecular interaction indicate that the methyl groups modify the electronic interaction between the NO and NO2 groups mainly through steric strain.

Zusammenfassung

Dipolmomente und Wechselwirkungsdipolmomente von sieben 4-Nitropyridin-N-oxiden wurden in benzolischen Lösungen gemessen. Die polaren und spektroskopischen Daten (13C NMR und UV/Vis) deuten darauf hin, daß die Methylgruppen die elektronische Wechselwirkung zwischen N-oxid und Nitrogruppe hauptsächlich durch sterische Hinderung beeinflussen.

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Authors and Affiliations

  1. Institute of Chemical and Food Technology, School of Economics, PL-53342, Wroclaw, Poland

    A. Puszko & L. Wasylina

  2. Institute of Chemistry, University of Wrocław, PL-50383, Wrocław, Poland

    Z. Pawełka

Authors
  1. A. Puszko
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  2. L. Wasylina
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  3. Z. Pawełka
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Puszko, A., Wasylina, L. & Pawełka, Z. Dipole moments and spectroscopic properties of methyl-4-nitropyridine N-oxides. Monatsh Chem 127, 601–607 (1996). https://doi.org/10.1007/BF00817252

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  • DOI: https://doi.org/10.1007/BF00817252

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