Chemistry of Heterocyclic Compounds

, Volume 3, Issue 5, pp 681–683 | Cite as

The effect of electronegative substituents on the electronic spectra of porphyrins

  • B. M. Mamaev
  • G. V. Ponomarev
  • R. P. Evstigneeva


The Hückel approximation MO method is used to calculate π-electron levels of energy and forces of dipole transitions, giving rise to a Soret absorption band in the spectra of porphyrins with carbethoxyl substituents. Comparison with experimental data shows that the theory correctly represents changes in electronic absorption spectra with changes in structure.


Experimental Data Organic Chemistry Absorption Spectrum Absorption Band Porphyrin 
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Copyright information

© The Faraday Press, Inc. 1969

Authors and Affiliations

  • B. M. Mamaev
    • 1
  • G. V. Ponomarev
    • 1
  • R. P. Evstigneeva
    • 1
  1. 1.Lomonosov Moscow Institute of Precision Chemical EngineeringUSSR

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