Anions of Alkali Halide Salts at Surfaces of Formamide Solutions: Concentration Depth Profiles and Surface Topography
作者： Gunther Andersson , Harald Morgner , Lukasz Cwiklik , Pavel Jungwirth
DOI: 10.1021/JP067726N
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摘要: Previous computer simulations and surface-selective spectroscopic experiments indicated non-monotonic concentration depth profiles for soft inorganic ions (such as iodide) at the air/water interface while this surface effect was strongly quenched in methanol. Here, we investigate by means of neutral impact collision ion scattering spectroscopy molecular dynamics propensity anions alkali halide iodide salts formamide. By combination calculations, extract both local solvent topography around or near topmost layer liquid. We show that formamide, a nonaqueous polar containing no hydrophobic groups, exhibits an enhanced coverage like are located outermost valleylike structures. The interfacial profile formamide is quantified...
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