Determination of pKa of ammonium and phenolic groups: Evidence of intramolecular hydrogen bonding in aqueous solution
Document Type
Article
Publication Date
1-1-2008
Abstract
The ionization constants of 2-hydroxyanilinium, 2-methoxyanilinium, 4-nitroanilinium ions, N-(2′-hydroxyphenyl)-phthalamic acid and N-(2′-methoxyphenyl) phthalamic acid, determined spectrophotometrically, have been rationalized in terms of internal hydrogen bonding and steric hindrance between o-substituent and reaction site.
Keywords
ionization, 2-hydroxyanilinium, 2-methoxyanilinium, 4-nitroanilinium ions, N-(2′-hydroxyphenyl)-phthalamic acid, N-(2′-methoxyphenyl) phthalamic acid, spectrophotometrically, internal hydrogen bonding, steric hindrance, o-substituent, reaction site.
Publication Title
Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry
ISSN
0376-4710
Recommended Citation
Ariffin, Azhar; Khan, Mohammad Niyaz; Sim, Y.L.; and Ahmad, W.H.W., "Determination of pKa of ammonium and phenolic groups: Evidence of intramolecular hydrogen bonding in aqueous solution" (2008). Research Publications (2006 to 2010). 1008.
https://knova.um.edu.my/research_publications_2006_2010/1008
Divisions
CHEMISTRY
Volume
47
Issue
2
Additional Information
Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA