Electrical properties of some silver-rich ternary oxides

Uncommon structural and bonding properties in Ag16B4O10

“…The silver d-states span a wide energy range in the DOS pointing to signicant d 10 -d 10 interactions. [5][6][7] Related to the sub-valence nature of the silver atoms, covalent interactions are apparent, especially in the tetrahedral voids of the silver clusters, where an ELF attractor is found. Thus, the silver network receives further stabilization beyond classical and d 10 -d 10 bonding.…”

“…Furthermore, such structural motifs are associated with specic physical properties. [5][6][7] From these ndings we concluded thus: "The substructures thereby formed have empty s and p conduction bands, which can easily accommodate further electrons on reduction". 3 As a consequence, one would expect oxides to exist that contain silver in oxidation states between 0 and +1, i.e.…”

Ag13OsO6: A Silver Oxide with Interconnected Icosahedral Ag134+ Clusters and Dispersed [OsO6]4− Octahedra

“…These structures seem to be associated with specific physical properties. [5][6][7] Weak Ag + À Ag + bonding therefore seems to exist, which indicates that monovalent silver (d 10 configuration) can no longer be regarded as a closedshell ion. As another consequence, the aggregates of monovalent silver ions provide empty 5s bands close to the Fermi level that should readily accommodate additional electrons, thus generating silver atoms in a valence state between 0 and + 1.…”

Syntheses and crystal structures of (Ag4XO4)2·AgNO3(X = Si, Ge)

“…From these uniform structural features together with the resulting specific physical properties we have concluded that weak bonding interactions between the Ag + particles should be present (Jansen, 1978(Jansen, ,1980Köhler et al, 1985), an interpretation that is supported by results on other halide and chalcogenide systems containing transition metal ions with a d 1 Configuration (Strähle et al, 1979;Bronger and Schils, 1982). From these uniform structural features together with the resulting specific physical properties we have concluded that weak bonding interactions between the Ag + particles should be present (Jansen, 1978(Jansen, ,1980Köhler et al, 1985), an interpretation that is supported by results on other halide and chalcogenide systems containing transition metal ions with a d 1 Configuration (Strähle et al, 1979;Bronger and Schils, 1982).…”