@article{wjce20261432,
author={{Jagannadham, V. and Rachuru, Sanjeev and Padmavathi, D. A.},
title={Is Water Electron Withdrawing or Electron Donating: Acid-Base Properties of Different Water Related Species Treated by Taft Equation},
journal={World Journal of Chemical Education},
volume={14},
number={3},
pages={47--50},
year={2026},
url={https://pubs.sciepub.com/wjce/14/3/2},
issn={2375-1657},
abstract={Water (HOH), hydroxyl radical (HO•), hydroxide ion (HO−), hydrogen peroxide (HHO2), hydroperoxyl radical HO2• hydroperoxide anion HO2− and hydronium ion (HH2O+) are all water related species and are environmentally important. The corresponding acid -base couples are represented as HOH/OH−, HO•/O•−, HO−/O2−, HHO2/, HO2•/ O2•-, HO2−/ O22− and H3O+/H2O. Therefore, the corresponding conjugate bases are hydroxide ion OH−, mono oxygen radical anion O•−, oxide dianion O2−, hydroperoxide anion HO2−, peroxyl radical anion O2•-, peroxide dianion O22− and H2O respectively. The acid-base properties are well characterized by treating the pKa data with Taft σ* values of the corresponding conjugate bases of these couples using Taft linear free-energy relationship (LFER). Positive Taft ρ* value of 17.7 indicates that electron withdrawing species facilitate the deprotonation and vice-versa. The present study is a good class-room exercise for both undergraduate and graduate advanced physical-organic chemistry level.},
doi={10.12691/wjce-14-3-2}
publisher={Science and Education Publishing}
}