Ag4Bi2O5 - A novel silverbismuthate(III)

Article abstract of DOI:10.1002/zaac.19966220325

Yellow single crystals of Ag₄Bi₂O₅ have been obtained for the first time by solid state reaction of Ag₂O and Bi₂O₃ applying an oxygen pressure of 10 MPa at a temperature of 473 K. According to the results of a single crystal structure determination (Pnna, a = 1428.3(2), b = 569.2(1), c = 877.7(1) pm, Z = 4, 1544 diffractometer data, R₁ = 0.050, wR² = 0.094) the anionic partial structure of Ag₄Bi₂O₅ consists of chains of corner and edge sharing BiO₄-units. The silveratoms form a network of threedimensionally connected trigonal bipyramides with Ag - Ag-contacts between 285 and 323 pm. Johann Ambrosius Barth 1996.