Single crystals of three mixed-valent oxidotellurates(IV/VI) with general formula M 2TeIVTeVIO6 (H2O) x (M = Na, K, Rb) were grown under hydrothermal conditions at 210 °C from M 2CO3, TeO2 and Te(OH)6 in a 4:1:1 molar ratio. Na2Te2O6·11/8H2O (where TeIVTeVI is abbreviated as Te2) crystallizes as a monoclinic eightfold superstructure with occupational modulation of the water molecules. The structure is built of diperiodic corrugated [Te2O6]2− networks interleaved by the Na atoms and H2O molecules. The hexagonal crystal structures of M 2Te2O4(OH)4 (M = K, Rb; x = 2) with P63/mmc symmetry are made up of [Te2O4(OH)4]2− rods extending in the [001] direction. The rods are connected by the M atoms. The [TeIVO2(OH)2] units are disordered about the threefold axis, resulting in pronounced three-dimensional diffuse scattering.

中文翻译：

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Na、K 和 Rb 的混合价 1:1 氧化碲酸盐 (IV/VI)：超结构和三维无序

具有通式的三种混合价氧化碲酸盐(IV/VI)的单晶米 2碲四碲六○6（H2○） X (米= Na、K、Rb）在 210 °C 的水热条件下从米 2一氧化碳3, TeO2和碲（OH）6摩尔比为 4:1:1。钠2碲2○6·11/8H2O（其中 Te四碲六缩写为 Te2) 结晶为具有水分子职业调制的单斜八重上层结构。该结构由双周期波纹 [Te2○6]2−由 Na 原子和 H 交错的网络2O分子。六方晶体结构米 2碲2○4（哦）4(米= K，铷；X= 2) 与磷63/MMC对称性由 [Te2○4（哦）4]2−沿[001]方向延伸的杆。杆是由米原子。[特四○2（哦）2] 单元围绕三重轴无序，导致明显的三维漫散射。