Figure 1
X-ray absorption near-edge spectra of approximately octahedrally coordinated aluminium oxygen species, illustrating the sensitivity of the near-edge spectra to coordination environment. The data were recorded on SSRL's beamline 3-3 (JUMBO) using a YB66 double-crystal monochromator (note that this instrument has now been decommissioned). All spectra are of solids (not solutions) recorded using total electron yield under a vacuum. (a) Aluminium acetylacetonate, (b) α-alumina (Al2O3), (c) alum [KAl(SO4)2·12H2O] and (d) kyanite (Al2SiO5). |