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Title: Determination of pKa of ammonium and phenolic groups: Evidence of intramolecular hydrogen bonding in aqueous solution
Authors: Sim, Yoke-Leng
Ahmad, Wan Hamdah Wan
Ariffin, Azhar
Khan, M Niyaz
Issue Date: Feb-2008
Publisher: CSIR
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.
Page(s): 240-245
ISSN: 0376-4710
Appears in Collections:IJC-A Vol.47A(02) [February 2008]

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