Single crystals of the hitherto unknown compound SrMnTeO6 have been prepared from Sr(OH)(2) . 8H(2)O, MnCO3(aq) and TeO2 in air by crystallization below the melt range. X-ray investigations showed hexagonal symmetry, space group D-3h(3)-P (6) over bar 2m, lattice constants a = 5.143(1), c = 5.384(2) Angstrom, Z = 1. SrMnTeO6 is characterized by staggered [(Mn/Te)(6)O-18] Kagome layers along [001]. These layers are connected by Sr2+ ions, resulting in SrO6 prisms isolated from each other. The structure is discussed with respect to the connection of Kagome nets in the quaternary oxides of the Ba(3)Ln(4)O(9) type. [References: 39]
展开▼
