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Accounting for effects of AZA-substitution on hyperfine interaction constants in ESR spectra

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Abstract

A previously developed scheme for describing the effects of substituents on the physicochemical characteristics of molecules with conjugated bonds has been extended to systems with an open electron shell. The distribution of spin density has been found for a number of anion radicals of azines on the basis of a calculation of their hydrocarbon analogs. The results are in agreement with experimental values of the HFI constant in the ESR spectra of these compounds.

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Literature cited

  1. Yu. B. Vysotskii, “Effect of chemical substitution ionization potentials and electron affinity of systems with conjugated bonds,” Teor. Éksp. Khim.,17, No. 4, 469–478 (1981).

    Google Scholar 

  2. R. E. Moss, N. A. Ashford, R. G. Lawler, and G. K. Fraenkel, “Electron spin resonance spectra of methyl-substituted naphthalene anion-radicals,” J. Chem. Phys.,51, No. 5, 1765–1771 (1969).

    Google Scholar 

  3. K. K. Sharma, “Additivity model for calculations of UHF spin densities and charge densities in some methyl-substituted anion radicals,” Int. J. Quantum Chem.,11, No. 5, 753–758 (1977).

    Google Scholar 

  4. K. K. Sharma, “Additivity model for calculations of UHF spin densities in some aza-aromatic anion radicals,” Int. J. Quantum Chem.,13, No. 5, 635–639 (1978).

    Google Scholar 

  5. A. V. Luzanov, M. M. Mestechkin, and Yu. B. Vysotskii, “Calculation of spin perturbations in the Hartree-Fock method,” Zh. Strukt. Khim.,12, No. 2, 289–295 (1971).

    Google Scholar 

  6. V. É. Umanskii and A. V. Luzanov, “Program for calculation of perturbation effects and π-electron spectra for open shells in the unrestricted Hartree-Fock method,” Vopr. Vychisl. Mat. Tekh. (Naukova Dumka, Kiev), pp. 74–85 (1976).

    Google Scholar 

  7. M. M. Mestechkin, The Density Matrix Method in Molecular Theory [in Russian], Naukova Dumka, Kiev (1977).

    Google Scholar 

  8. M. M. Mestechkin, Instability of Hartree-Fock Equations and the Stability of Molecules [in Russian], Naukova Dumka, Kiev (1986).

    Google Scholar 

  9. M. M. Mestechkin, V. N. Poltavets, V. É. Umanskii, et al., “Approximate calculation of alternative systems in spin-extended Hartree-Fock method,” Teor. Éksp. Khim.,13, No. 3, 321–327 (1977).

    Google Scholar 

  10. E. Yu. Balabanov, O. I. Kachurin, L. S. Gutyrya, and Yu. B. Vysotskii, “Electronic structure and atomatom mutual polarizabilities of anion radicals of benzenoid hydrocarbons,” Donetsk (1985), paper filed at VINITI.

  11. Yu. B. Vysotskii and B. P. Zemskii, “Quantumchemical interpretation of recyclization reactions. 3. Azaindolizines,” Khim. Geterotsikl. Soedin., No. 7, 984–992 (1980).

    Google Scholar 

  12. G. P. Colpa and G. R. Bolton, “Hyperfine coupling constants and their dependence on charge densities,” Mol. Phys.,6, No. 3, 273–282 (1963).

    Google Scholar 

  13. A. L. Buchachenko and A. M. Vasserman, Stable Radicals [in Russian], Khimiya, Moscow (1973).

    Google Scholar 

  14. A. V. Il'yasov, Yu. M. Kargin, and I. D. Morozova, ESR Spectra of Organic Radicals [in Russian], Nauka, Moscow (1980).

    Google Scholar 

  15. P. Hanson, “Heteroatomic radicals. 1. General properties; radicals with Group V ring heteroatoms,” Adv. Heterocycl. Chem.,25, 205–301 (1979).

    Google Scholar 

  16. G. D. Zeiss and M. A. Whitehead, “Heteroatomic molecules: Calculations of proton and14N hyperfine splittings,” Trans. Faraday Soc., No. 3, 526–538 (1972).

    Google Scholar 

  17. A. J. L. Sevenster and B. J. Tabner, “Electron spin resonance study of some polycyclic nitrogen heterocyclic radical anions,” Org. Magn. Reson.,22, No. 8, 521–526 (1984).

    Google Scholar 

  18. E. W. Stone, “ESR study of polyazine anions,” J. Chem. Phys.,39, No. 5, 1635–1644 (1963).

    Google Scholar 

  19. D. M. W. Ham van den, I. I. Sart, and D. Meer, “The McConnell equation for ESR spectra of symmetrical diazanaphthalenes,” Mol. Phys.,21, No. 6, 989–997 (1971).

    Google Scholar 

  20. P. Cavalieri d'Oro, R. Danieli, G. Maccagnani, et al., “Spin densities in some diazine and naphthyridine anions,” Mol. Phys.,20, No. 2, 365–374 (1971).

    Google Scholar 

  21. R. Danieli, L. Lunazzi, and G. Placucci, “Tetraazanaphthalene radical anions,” J. Am. Chem. Soc.,93, No. 22, 5850–5852 (1971).

    Google Scholar 

  22. I. C. Lewis and L. S. Singer, “Electron spin resonance of radical cations produced by the oxidation of aromatic hydrocarbons with SbCl5,” J. Chem. Phys.,43, No. 8, 2712–2727 (1965).

    Google Scholar 

  23. F. Gerson, “ESR spectra of 1,3,6,8-tetraazapyrene radical ion,” Helv. Chim. Acta,47, No. 6, 1484–1496 (1964).

    Google Scholar 

  24. D. H. Geske and G. R. Padmanabhan, “An electron spin resonance study of the anion radicals of 9,10-diazaphenanthrene and 2,2'-bipyrimidine,” J. Am. Chem. Soc.,87, No. 8, 1651–1663 (1965).

    Google Scholar 

  25. J. C. M. Henning, “14N hyperfine structure in ESR spectra of heterocyclic anions,” J. Chem. Phys.,44, No. 5, 2139–2155 (1966).

    Google Scholar 

  26. A. Sta>sko, “Intermediate radical products formed in catalytic systems of nickel with organometallic compounds,” Chem. Zvesti,37, No. 1, 95–137 (1983).

    Google Scholar 

  27. J. Chaudhuri, S. Kume, J. Jagur-Grodzinski, and M. Szwars, “Chemistry of radical anions of heterocyclic aromatics. Electron spin resonance and electron spectra,” J. Am. Chem. Soc.,90, No. 23, 6421–6425 (1968).

    Google Scholar 

  28. J. Bruhin and F. Gerson, “The radical anion of 2,7-diazapyrene, a change in orbital sequence on protonation,” Helv. Chim. Acta,58, No. 8, 2422–2431 (1975).

    Google Scholar 

  29. G. Gooijer, N. H. Velthorst, and C. MacLean, “The electron spin density at the alkali nucleus in radical ion pairs of nitrogen containing aromatic molecules and sodium,” Mol. Phys.,24, No. 6, 1361–1371 (1972).

    Google Scholar 

  30. M. M. Mestechkin, Yu. B. Vysotskii, L. S. Gutyrya, and G. E. Vaiman, “Self-consistent π-electron spin densities in alternant radicals,” Teor. Éksp. Khim.,11, No. 3, 362–368 (1975).

    Google Scholar 

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Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 155–161, March–April, 1989.

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Vysotskii, Y.B., Balabanov, E.Y., Kachurin, O.I. et al. Accounting for effects of AZA-substitution on hyperfine interaction constants in ESR spectra. Theor Exp Chem 25, 140–146 (1989). https://doi.org/10.1007/BF01135002

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  • DOI: https://doi.org/10.1007/BF01135002

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