@article{wjce20221031,
author={{Sanjeev, R. and Jagannadham, V.},
title={Effect of Pyridine Type Nitrogen (=N-) on Hammett ρ: Invoking the Reactivity-Selectivity Principle: A Chemical Education Perspective},
journal={World Journal of Chemical Education},
volume={10},
number={3},
pages={91--94},
year={2022},
url={http://pubs.sciepub.com/wjce/10/3/1},
issn={2375-1657},
abstract={Hammett &#961; values are estimated for the two acid dissociation equilibriums eqn. 1 and 2 of pyridinium and pyridazenium ions from the Hammett plots of log <i>K</i><SUB>a</SUB><SUB>H</SUB> versus Hammett &#963; values. The Hammett &#961; values are found to be 5.94 and 5.29 for the two equilibriums eqns. 1 and 2 respectively. The effect of extra pyridine type nitrogen (=N-) on Hammett &#961; is discussed. Similarly, the average lone pair ionization potentials (IP) of pyridines and pyridazines also followed Hammett equation with Hammett &#961; of 1.18 for pyridines and 0.38 for pyridazines respectively. This article is useful in an undergraduate and graduate classroom who tries to study the substituent effects and reactivity-selectivity principle. <img src=image/abs1.png></img>},
doi={10.12691/wjce-10-3-1}
publisher={Science and Education Publishing}
}