2013
DOI: 10.1039/c2cp42902k
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Probing the balance of attraction and repulsion in binary mixtures of dimethyl sulfoxide and n-alcohols

Abstract: Published volumetric mixing data for DMSO-n-alcohol systems show a transition from attractive to repulsive interaction dominance for increasing alkyl chain length. A spectroscopic marker for the relative dominance of these interactions is investigated by FTIR measurements. While most vibrational modes show very similar behavior for the alcohols (C3-C5) studied, the CO torsion mode reveals a strong correlation between maximum red-shift and the balance of attraction and repulsion.

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Cited by 12 publications
(10 citation statements)
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References 25 publications
(33 reference statements)
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“…www.chemphyschem.org phase IR spectra of simple alcohols. [23] The calculated IR and Raman intensities are in good agreement with the main features of the experimental spectra.T he infrared spectra of the four cyanohydrins are characterized by very low intensities of the stretching bands and medium to high intensities of the other deformations bands. Fore xample, the stretching vibrations of the CH, OH, and CN bonds in different groups absorb weakly in almost all the studied compounds whereas their corresponding movementso fd eformation and bending are much more intense.…”
supporting
confidence: 72%
“…www.chemphyschem.org phase IR spectra of simple alcohols. [23] The calculated IR and Raman intensities are in good agreement with the main features of the experimental spectra.T he infrared spectra of the four cyanohydrins are characterized by very low intensities of the stretching bands and medium to high intensities of the other deformations bands. Fore xample, the stretching vibrations of the CH, OH, and CN bonds in different groups absorb weakly in almost all the studied compounds whereas their corresponding movementso fd eformation and bending are much more intense.…”
supporting
confidence: 72%
“…[18][19][20] It can be used to enhance the spectral resolution of the IR bands under study and look at changes in the dipole moment, reflecting changes in the charge distribution of the vibrating system. The procedure of calculating excess IR spectra was introduced by Li et al 18 lending the concept of thermodynamic excess properties.…”
Section: Excess Absorbance Spectramentioning
confidence: 99%
“…While there is extensive information available on the macroscopic mixture behaviour of binary acetone/alcohol solutions, the ternary ABE system has not been studied in detail. The excess molar enthalpies for binary mixtures of acetone with primary aliphatic alcohols were found similar, which indicates a general similarity of the prevalent hydrogen bonding in the different mixtures . In contrast, the corresponding excess molar volumes show a rather different behaviour .…”
Section: Introductionmentioning
confidence: 84%
“…The excessm olare nthalpies for binary mixtures of acetonew ith primary aliphatic alcohols were found similar, [7a, c, f, g, i] which indicates ag eneral similarity of the prevalent hydrogen bondingi n the different mixtures. [8] In contrast, the corresponding excess molar volumes show ar ather different behaviour. [7b-d, j-r] While binary mixtures of acetone with methanol, ethanol and 1-propanol show negative excessm olar volumes, positive values have been reported for binary acetone/1-butanol and acetone/ Mixtures of acetone, butanol, and ethanol( ABE) are common intermediate productsi nt he production of biofuelsv ia biomass fermentation.…”
Section: Introductionmentioning
confidence: 99%