Title of article
Substituent effects on ionisation and 13C NMR properties of some monosubstituted phenols: A potentiometric, spectrophotometric and 13C NMR study
Author/Authors
Crisponi، نويسنده , , Guido and Casu، نويسنده , , Mariano and Nurchi، نويسنده , , Valeria Marina and Cesare-Marincola، نويسنده , , Flaminia and Pivetta، نويسنده , , Tiziana and Silvagni، نويسنده , , Roberta، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2002
Pages
9
From page
441
To page
449
Abstract
The pKa values of ionisation of a set of phenols ortho, meta and para substituted are studied by spectrophotometry and 13C NMR spectroscopy. A dual substituent analysis of equilibrium and NMR results, according to the Swain and Lupton procedure, is presented. The results of this analysis allow the assignment of the contribution of field and resonance contributions, both on equilibrium constants and chemical shifts.
Keywords
UV–vis spectroscopy , 13C NMR chemical shift , Fibre optics , substituent effect , Swain–Lupton constants , Potentiometry , Ionisation constants
Journal title
Talanta
Serial Year
2002
Journal title
Talanta
Record number
1642168
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