FIG. 6.
(a) Atom-atom pairs probed by static X-ray solution scattering. Since X-rays scatter off from every atom in the solution, the scattering pattern is very complicated. (b) Scattering intensity of I3– ion extracted from static wide-angle X-ray solution scattering (black). Scattering patterns from pure solvent and air as well as the dark response of the detector were subtracted from the scattering pattern of the solution sample. The theoretical scattering curve (red) does not match the experimental difference curve due to the unknown background remaining. Therefore, we cannot obtain the exact structure of I3– ion within a reasonable error range.