Synthesis, Crystal Structure, and Properties of Ag₃SbO₄

Abstract

From solid state reactions of Ag 2 O and Sb 2 O 3 at high temperatures under elevated oxygen pressures a new silver antimonate, Ag 3 SbO 4 , has been obtained. The crystal structure of Ag 3 SbO 4 was determined from powder data (P4 1 22 (no. 91) with a = 7.0436(1), c = 8.8665(1) Å, V = 439.88(2) Å 3 , Z = 4, R p = 8,75 %, R wp = 11.92 %, R exp = 13.60 %).

Crystal structure of Ag3Dy2(NO3)9 and quantitative comparison to isotypic compounds

“…The Ag-O distances span quite a large range, so besides eight distances between 2.741 (11) and 3.004 (11) A ˚two relatively short distances of 2.383 (15) A ˚are found. These short bonds include oxygen atoms in almost opposite positions, which form an O-Ag-O angle of 154.7 (6) , indicating the preferred formation of AgO 2 dumbbells even in an environment of quite rigid complex anions, for instance observed in Ag 4 SiO 4 (Klein & Jansen, 2008), in contrast to a more spherical 'alkali metallike' coordination as in Ag 3 SbO 4 (distorted rock salt structure; Klein & Jansen, 2010). Consequently, the Ag atom has its The appearance of this structure type for the combination Ag-Dy is somewhat remarkable.…”