Application of electron paramagnetic resonance spectroscopy for validation of the novel (AN+DN) solvent polarity scale.
Int J Mol Sci
; 9(7): 1321-32, 2008 Jun.
Article
em En
| MEDLINE
| ID: mdl-19325805
Based on solvation studies of polymers, the sum (1:1) of the electron acceptor (AN) and electron donor (DN) values of solvents has been proposed as an alternative polarity scale. To test this, the electron paramagnetic resonance isotropic hyperfine splitting constant, a parameter known to be dependent on the polarity/proticity of the medium, was correlated with the (AN+DN) term using three paramagnetic probes. The linear regression coefficient calculated for 15 different solvents was approximately 0.9, quite similar to those of other well-known polarity parameters, attesting to the validity of the (AN+DN) term as a novel "two-parameter" solvent polarity scale.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Int J Mol Sci
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Suíça