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World Journal of Chemical Education. 2020, 8(4), 155-162
DOI: 10.12691/WJCE-8-4-3
Original Research

Comparison of Substituent Effects in Benzenes (XC5H5C), Pyridines (XC5H4N) and Phosphorines (XC5H4P) and their Protonated Species

R. Sanjeev1 and V. Jagannadham2,

1Department of Chemistry, Geethanjali College of Engineering and Technology Cheeryal-501301, Telangana, India

2Department of Chemistry, Osmania University, Hyderabad-500007, India

Pub. Date: September 27, 2020
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R. Sanjeev and V. Jagannadham. Comparison of Substituent Effects in Benzenes (XC5H5C), Pyridines (XC5H4N) and Phosphorines (XC5H4P) and their Protonated Species. World Journal of Chemical Education. 2020; 8(4):155-162. doi: 10.12691/WJCE-8-4-3

Abstract

Collection of interesting and stimulative data led us to construct Hammett plots for different properties like proton affinities, gas phase basicities, solvation free energies of free and protonated benzenes (I), pyridines (II) and phosphorines (III), and for pKa values of protonated pyridines and phosphorines. Trends in Hammett reaction constants (ρ) for all these processes were discussed.

Keywords

benzenes, pyridines, phosphorines, pKa, proton affinities, gas phase basicities, solvation free energies

Copyright

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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