2024
DOI: 10.1021/acs.inorgchem.3c04409
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Where are the Excess Electrons in Subvalent Compounds? The Case of Ag7Pt2O7

Fernando Izquierdo-Ruiz,
Miguel Angel Salvadó,
Alvaro Lobato
et al.

Abstract: Subvalent compounds raise the question of where those valence electrons not belonging to chemical bonds are. In the limiting case of Ag 7 Pt 2 O 7 , there is just one-electron excess in the chemical formula requiring the presence of Ag atoms with oxidation states below +1, assuming conventional Pt 4+ and O 2− ions. Such a situation challenges the understanding of the semiconducting and diamagnetic behavior observed in this oxide. Previous explanations that localize pairwise the electron excess in tetrahedral A… Show more

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