Molecular structure and adsorption of dimethyl sulfoxide at the surface of aqueous solutions
Article Abstract:
Dimethyl sulfoxide (DMSO) is examined at the solution surface by means of surface vibrational sum frequency generation spectroscopy. In the spectral region examined, the DMSO methyl symmetric stretch from surface DMSO gradually blue shifts with decreasing DMSO concentration. The blue shift is correlated with a destabilization of the sulfur-CH electronic interaction with decreasing surface concentration. Observations of surface tension data show that surface partitioning of DMSO in water clearly occurs over all concentration ranges.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Probing the structure of water molecules at an oil/water interface in the presence of a charged soluble surfactant through isotopic dilution studies
Article Abstract:
The structure of water molecules in an oil/water interface was examined through vibrational sum frequency generation techniques in the presence of a charged soluble surfactant. Stretched hydroxide modes were used as samples for the study. Further analysis revealed that ice-like molecules were more predominant in the samples and were arranged in a tetrahedral fashion. This was attributed to the influence of the nonpolar oil phase on the interfacial water molecules whether in the presence or absence of charged soluble surfactants.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Investigations of the structure and hydrogen bonding of water molecules at liquid surfaces by vibrational sum frequency spectroscopy
Article Abstract:
The structure and hydrogen bonding of water molecules at liquid surfaces was studied using vibrational sum frequency spectroscopy. Results showed that the structure and hydrogen bonding of water molecules at the neat air/water interface are significantly different than those of the CCl4/water interface. The neat air/water interface contains contributions from OH peaks, while the CCl4/water interface contains only the OH-SS-S peak.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Structure and Raman spectrum of clavulanic acid in aqueous solution. Structure and function of vanadium haloperoxidases
- Abstracts: Neutron reflection study of phenol adsorbed at the surface of its aqueous solutions: an unusual adsorbed layer
- Abstracts: Dynamics of photoinduced charge separation on the surface of dihexydecylphosphate vesicles. N-alkylcyanopyridinium-mediated photoinduced charge separation across dihexadecyl phosphate vesicle membranes
- Abstracts: Synthesis and characterization of a size series of extremely small thiol-stabilized CdSe nanocrystals. Electroluminescence studies on self-assembled films of PPV and CdSe nanoparticles
- Abstracts: Scanning polarization force microscopy study of the condensation and wetting properties of glycerol on mica. Wetting and capillary phenomena of water on mica