Application of electron paramagnetic resonance Spectroscopy for validation of the novel (AN plus DN) solvent polarity scale
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
19/04/2012
19/04/2012
2008
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Resumo |
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. |
Identificador |
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, v.9, n.7, p.1321-1332, 2008 1422-0067 http://producao.usp.br/handle/BDPI/16751 10.3390/ijms9071321 |
Idioma(s) |
eng |
Publicador |
MOLECULAR DIVERSITY PRESERVATION INT |
Relação |
International Journal of Molecular Sciences |
Direitos |
openAccess Copyright MOLECULAR DIVERSITY PRESERVATION INT |
Palavras-Chave | #polarity #solvent #EPR #spin label #isotropic hyperfine splitting constant #PEPTIDE-SYNTHESIS #SPIN LABELS #AMINO-ACID #WATER PENETRATION #RESIN SOLVATION #EPR PARAMETERS #NITROXIDES #DEPENDENCE #MICROENVIRONMENT #CHEMISTRY #Chemistry, Multidisciplinary |
Tipo |
article original article publishedVersion |