Probing outer-sphere adsorption of aqueous metal complexes at the oxide-water interface with resonant anomalous x-ray reflectivity

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...

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Bibliographic Details
Published inPhysical review letters Vol. 94; no. 7; p. 076104
Main Authors Park, Changyong, Fenter, Paul A, Sturchio, Neil C, Regalbuto, John R
Format Journal Article
LanguageEnglish
Published United States 25.02.2005
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Summary: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.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.94.076104