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Title: Application of electron paramagnetic resonance Spectroscopy for validation of the novel (AN plus DN) solvent polarity scale
Authors: Malavolta, Luciana [UNIFESP]
Poletti, Erick F. [UNIFESP]
Silva, Elias H. [UNIFESP]
Schreier, Shirley
Nakaie, Clovis R. [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Inst Israelita Ensino & Pesquisa Albert Einstein
Keywords: polarity
spin label
isotropic hyperfine splitting constant
Issue Date: 1-Jul-2008
Publisher: Mdpi Ag
Citation: International Journal of Molecular Sciences. Basel: Mdpi Ag, v. 9, n. 7, p. 1321-1332, 2008.
Abstract: 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.
ISSN: 1661-6596
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Appears in Collections:Artigo

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