title: Probing outer-sphere adsorption of aqueous metal complexes at the oxide-water interface with resonant anomalous x-ray reflectivity.
abstract: Resonant anomalous x-ray reflectivity near the Pt L(III) edge simultaneously revealed the geometric and spectroscopic structures of Pt(NH(3))(4)(2+) ions adsorbed at the quartz(100)-water interface. The derived Pt geometric subprofile shows two discrete "outer-sphere" adsorbed layers, and the interface-specific x-ray absorption edge profile exhibits a significant white-line enhancement compared to the bulk-solution species.
authors.affiliation: Environmental Research Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
authors.forename: Changyong
authors.initials: C
authors.lastname: Park
authors.forename: Paul A
authors.initials: PA
authors.lastname: Fenter
authors.forename: Neil C
authors.initials: NC
authors.lastname: Sturchio
authors.forename: John R
authors.initials: JR
authors.lastname: Regalbuto