CV.—The dielectric constants of phenols and their ethers dissolved in benzene and m-xylene

Philip, James Charles; Haynes, Dorothy

doi:10.1039/ct9058700998

Cited by 21 publications

(2 citation statements)

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“…The value of the interior dielectric constant was set to 15. Taking into account the lack of experimental values for these compounds, we have used a value close to the dielectric constant of phenol because these molecules possess similar groups (58). The entropy term was not calculated because it was assumed that its contribution to ΔΔG binding is mainly canceled by the hydrophobic effect and becomes negligible (59).…”

Section: Samplesmentioning

confidence: 99%

Vinylcatechin Dimers Are Much Better Copigments for Anthocyanins than Catechin Dimer Procyanidin B3

Cruz

Brás

Teixeira

et al. 2010

J. Agric. Food Chem.

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The binding constants (K) for the interaction of three copigments (CP), two epimeric vinylcatechin dimers (CP1 and CP2), and catechin dimer B3 (CP3) with two pigments, malvidin-3-glucoside (oenin) and malvidin-3,5-diglucoside (malvin), were determined. The K values clearly show that both vinylcatechin dimers have much higher affinity for oenin and malvin than dimer B3: K(CP2) > K(CP1) >> K(CP3). Quantum mechanics and molecular dynamics calculations were also performed to interpret the binding data and specify the relative arrangement of the pigment and copigment molecules within the complexes.

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Section: Samplesmentioning

confidence: 99%

Vinylcatechin Dimers Are Much Better Copigments for Anthocyanins than Catechin Dimer Procyanidin B3

Cruz

Brás

Teixeira

et al. 2010

J. Agric. Food Chem.

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“…Although many dielectric studies have been made on polar þ non-polar liquids [1][2][3], very few have been undertaken on anisole with polar liquids. Dielectric properties of a anisole/m-xylene mixture were studied by Philip et al [4] and dielectric relaxation studies on a mixture of anisole-benzene at microwave frequencies were carried out (Kraubuchi et al [5]). Over the last few years, there has been some progress in dielectric studies on polar-polar mixtures [6,7], but not on binary mixtures of anisoleþbutyric acid or anisoleþcaprylic acid.…”

Section: Introductionmentioning

confidence: 99%

Dielectric and thermodynamic studies on a binary mixture of anisole with butyric or caprylic acid

Parthipan

Arivazhagan

Thenappan³

2008

Philosophical Magazine Letters

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The molecular interaction of anisole with fatty acids, such as butyric acid and caprylic acid, has been studied using standard dielectric methods. The permittivity at static and optical frequency (the sodium D-line) of a mixture of anisole þ butyric acid and anisole þ caprylic acid were measured at three different temperatures. Kirkwood correlation parameters, the excess permittivity, the Bruggeman parameter and excess free-energy were determined for each concentration of the mixture. A positive value of excess permittivity was obtained for the mixture of anisole þ butyric acid, whereas for most concentrations of the anisole þ caprylic acid mixture, the excess permittivity was negative at all studied temperatures. Negative and positive values of the Bruggeman parameters were obtained for the anisole þ butyric acid and anisole þ caprylic acid mixtures, respectively. Parallel and anti-parallel alignments of dipoles in the mixtures were identified.

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Das Schmelzdiagramm des Systems Para‐Kresol‐Benzoesäure

Silva¹

1934

Recl. Trav. Chim. Pays‐Bas

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CV.—The dielectric constants of phenols and their ethers dissolved in benzene and m-xylene

Cited by 21 publications

References 0 publications

Vinylcatechin Dimers Are Much Better Copigments for Anthocyanins than Catechin Dimer Procyanidin B3

Vinylcatechin Dimers Are Much Better Copigments for Anthocyanins than Catechin Dimer Procyanidin B3

Dielectric and thermodynamic studies on a binary mixture of anisole with butyric or caprylic acid

Das Schmelzdiagramm des Systems Para‐Kresol‐Benzoesäure

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