Infrared study on the self-association of dimethyl sulfoxide

Figueroa, R.H.; Roig, E.; Szmant, H. Harry

doi:10.1016/0371-1951(66)80090-5

Cited by 80 publications

(46 citation statements)

References 3 publications

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“…The intermolecular structure parameters are obtained from the crystal data [22] and fixed in the course of the calculations. The discrete molecular aggregates of DMSO so far proposed [6][7][8][9][10][11] are not seen in the solid-like structure. Some physicochemical properties of DMSO are shown in Table 2 together with those of N,N-dimethylformamide (DMF) for comparison [27,28].…”

Section: R Esults and Discussionmentioning

confidence: 99%

“…Liquid DMSO is found to be associated according to cryoscopic [1], spectroscopic [2], relaxa tion [3], viscosity [4] and neutron inelastic scattering [5] measurements. From recent Raman and infrared spectroscopic data, the existence in pure DMSO of cyclic and linear dimers including linear polymers is reported, although the assignment of the bands is still in controversy [6][7][8][9], The result of an NMR measurement suggested the formation of cyclic dimers of 2-thiaindan 2-oxide in CDC13 [10]. Lumbroso et al measured the dipole moment of DMSO in cyclohexane and explained their result in terms of a mixture of linear dimers and cyclic chain aggregates [11], Although some X-ray diffraction investigations on the structure of solvated metal ions in DMSO have been carried out [12][13][14][15][16], an analysis of the liquid structure of pure DMSO has not been re ported.…”

Section: Introductionmentioning

confidence: 99%

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A Study of the Liquid Structure of Dimethyl Sulfoxide by the X-Ray Diffraction

Itoh

Ohtaki

1987

Zeitschrift Für Naturforschung A

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The liquid structure of dim ethyl sulfoxide (DMSO) was investigated by X-ray diffraction. The intramolecular structure parameters were obtained as follows: S = 0 150(1) pm, C -S 180(1) pm, nonbonding C -0 267(4) pm and C ---C 271 (7) pm. It is suggested that the molecular arrange ment in the liquid state is sim ilar to that in the solid state. It is pointed out that not only the value but also the position of the dipole mom ent vector in the molecule is essential for dipoledipole interm olecular interactions and that the latter factor results in a higher melting point of DMSO than o f N ,N -dim ethylform am ide in spite of their sim ilar dipole moments.

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Section: R Esults and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Study of the Liquid Structure of Dimethyl Sulfoxide by the X-Ray Diffraction

Itoh

Ohtaki

1987

Zeitschrift Für Naturforschung A

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“…Spectroscopic as well as thermodynamic (Prestbo and McHale, 1984;Griggs et al, 1979;Chareyron and Clechet, 1971;Agarwal et al,1979;Quitzsch et al, 1967) and nuclear magnetic relaxation (Sayin and McKee, 2004) data support the formation of DMSO dimers at low concentrations. The DMSO dimer seems to predominate in the concentration range 0.02 _ 0.3 mol dm -3 , and the value of its formation constant is estimated as 0.9 dm 3 mol -1 (Figueroa et al, 1966). Thus, DMSO monomers exist predominantly in the concentration range below 8×10 -3 mol dm -3 , and the significant decrease of the quantum yield at low [DMSO] may be induced by the association of DMSO.…”

Section: ×10mentioning

confidence: 94%

Solvent effects on the photochemistry of dimethyl sulfoxide–Cl complexes studied by combined pulse radiolysis and laser flash photolysis

Sumiyoshi

Minegishi

Fujiyoshi

et al. 2006

Radiation Physics and Chemistry

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Photolysis of complexes of dimethyl sulfoxide (DMSO) with chlorine atoms results in rapid and permanent photobleaching which may be due to intramolecular hydrogen abstraction. The effects of solvent polarity were examined in a wide variety of DMSO-carbon tetrachloride mixed solvents. The quantum yields of photobleaching decreased from 0.27 to 0.08 as the solvent polarity increased, while significant changes were observed in the low DMSO concentration range (< 0.2 mol dm -3 ). This cannot be accounted for by simple solvent polarity effects. The effects of polar and nonpolar additives were also examined and it is concluded that the specific solvation effect of DMSO was the main cause of the significant change in the quantum yields in the low concentration range of DMSO.

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“…We believe that both oligomers aggregate via the hexyl side chains due to poor solvent interaction (solvophobic effect) in the selfassociating solvent DMSO. 32 Micellation of alkyl group bearing amphiphiles in DMSO has been reported previously. 33,34,35 In 6 the edge opposite the hexyloxy side chains consists of carbonyl and N-H hydrogen bond acceptors and donors and can therefore interact strongly with the solvent DMSO.…”

Section: O)mentioning

confidence: 99%