Long-range ion-water and ion-ion interactions in aqueous solutions

AuthorCount:6;
Using small-angle X-ray scattering (SAXS), we obtained direct experimental evidence on the structure of hydrated polyatomic anions, with hydration effects starkly different from those of cations (J. Chem. Phys., 2011, 134, 064513). We propose that the size and charge density of the naked ions do not sufficiently account for the differences in the SAXS curves. For cations, the ion-ion contribution gives a prominent first-order diffraction peak, whereas for anions, the low-Q enhancement in the SAXS curves indicates density inhomogeneities as a result of ion-water interactions.

Huang, Congcong (author)
Waluyo, Iradwikanari (author)
Weiss, Thomas (author)
Pettersson, Lars G. M.Stockholms universitet,Fysikum(Swepub:su)lgm (author)
Nilsson, AndersStockholms universitet,Fysikum,SLAC National Accelerator Laboratory, USA(Swepub:su)andersn (author)
Stockholms universitetFysikum (creator_code:org_t)

In:Physical Chemistry, Chemical Physics - PCCP: Royal Society of Chemistry (RSC)17:13, s. 8427-84301463-90761463-9084

By the author/editor: Chen, Chen; Huang, Congcong; Waluyo, Iradwika ...; Weiss, Thomas; Pettersson, Lars ...; Nilsson, Anders

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