The channel structure of trithallium pentaantimonate(V), Tl3Sb5O14

Abstract

Single crystals of Tl3Sb5O14 were grown by solid-state reaction in a corundum crucible under air (1273 K, 12 h). The structure was determined by single-crystal X-ray diffraction. It is isotypic to the K3Sb5O14, Rb3Sb5O14 and Cs3Sb5O14 analogues with orthorhombic Pbam symmetry and cell parameters a = 24.2899 (9) Å, b = 7.1931 (3) Å, c = 7.4182 (3) Å. The Sb atoms form irregular [SbO6] octahedra, which are linked via edges and corners into a triperiodic network. The Tl+ ions are located in distinct channels of the network extending along [010] and [001].