Search results for " amphiphilic molecules"

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Supramolecular Aggregates in Vacuum: Positively Mono-Charged Sodium Alkanesulfonate Clusters

2010

The formation and structural features of positively mono-charged aggregates of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) and sodium methane—(MetS), butane—(ButS) and octane—(OctS) sulfonate molecules in the gas phase have been investigated by electrospray ionization mass spectrometry, energy-resolved mass spectrometry and density functional theory (DFT) calculations. The experimental results show that the center-of-mass collision energy required to dissociate 50% of these mono-charged aggregates scantly depends on the length of the alkyl chain as well as on the aggregation number. This, together with the large predominance of mono-charged species in the mass spectra, was rationalized i…

AlkanesulfonatesSpectrometry Mass Electrospray IonizationAmphiphilic moleculeVacuumChemistryElectrospray ionizationSodiumSodiumSupramolecular chemistrychemistry.chemical_elementGeneral MedicineAtomic and Molecular Physics and Opticschemistry.chemical_compoundSulfonateTandem Mass SpectrometrySupramolecular aggregates amphiphilic molecules surfactants reversed micelles ESI MS ESI MS/MS energy resolved mass spectrometry DFT calculationsQuantum TheoryOrganic chemistrySpectroscopyEuropean Journal of Mass Spectrometry
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