Russian Journal of Organic Chemistry

, Volume 42, Issue 2, pp 175–182 | Cite as

Polarization effect in radical cations and H-complexes

  • A. N. Egorochkin
  • O. V. Kuznetsova


The effect of substituents X on the ionization potentials IP (process DX + hν ➙ DX + e) and shifts in vibration frequencies Δν of ν(OH) in the IR spectra of phenol complexes PhO-H + DX ⇄ PhOδ−-H…Dδ+X for nine series of DX molecules were studied. On compiling with three conditions (a constant donor center D; the electron density donation only from D and not from X; a constant sampling size within each series) it was possible to compare the polarization effect in DX and Dδ+X. In the radical cations DX the polarization effect is on the average 2.2 times larger than in the systems Dδ+X. The systems DX and Dδ+X are virtually indistinguishable with respect to the external delocalization of the positive charge.


Phenol Organic Chemistry Positive Charge Radical Cation Ionization Potential 
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© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  1. 1.Razuvaev Institute of Organometallic ChemistryRussian Academy of SciencesNizhnii NovgorodRussia

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