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Isolation and tandem mass spectrometric identification of a stable monolayer protected silver-palladium alloy cluster
Published in American Chemical Society
Volume: 5
Issue: 21
Pages: 3757 - 3762
A selenolate-protected Ag-Pd alloy cluster was synthesized using a one-pot solution-phase route. The crude product upon chromatographic analyses under optimized conditions gave three distinct clusters with unique optical features. One of these exhibits a molecular peak centered at m/z 2839, in its negative ion mass spectrum assigned to Ag5Pd4(SePh)12-, having an exact match with the corresponding calculated spectrum. Tandem mass spectrometry of the molecular ion peak up to MS9 was performed. Complex isotope distributions in each of the mass peaks confirmed the alloy composition. We find the Ag3Pd3- core to be highly stable. The composition was further supported by scanning electron microscopy, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy. (Graph Presented). © 2014 American Chemical Society.
About the journal
JournalData powered by TypesetJournal of Physical Chemistry Letters
PublisherData powered by TypesetAmerican Chemical Society
Open AccessNo
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