Application of electron paramagnetic resonance Spectroscopy for validation of the novel (AN plus DN) solvent polarity scale

Application of electron paramagnetic resonance Spectroscopy for validation of the novel (AN plus DN) solvent polarity scale

Autor Malavolta, Luciana Autor UNIFESP Google Scholar
Poletti, Erick F. Autor UNIFESP Google Scholar
Silva, Elias H. Autor UNIFESP Google Scholar
Schreier, Shirley Google Scholar
Nakaie, Clovis R. Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Inst Israelita Ensino & Pesquisa Albert Einstein
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.
Assunto polarity
solvent
EPR
spin label
isotropic hyperfine splitting constant
Idioma Inglês
Data 2008-07-01
Publicado em International Journal of Molecular Sciences. Basel: Mdpi Ag, v. 9, n. 7, p. 1321-1332, 2008.
ISSN 1661-6596 (Sherpa/Romeo, fator de impacto)
Editor Mdpi Ag
Extensão 1321-1332
Fonte http://dx.doi.org/10.3390/ijms9071321
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000257986800012
URI http://repositorio.unifesp.br/handle/11600/30751

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