Incorporation of Sulfate or Selenate Groups into Oxotellurates(IV): I. Calcium, Cadmium, and Strontium Compounds
作者:Matthias Weil、Mahdi Shirkhanlou
DOI:10.1002/zaac.201600406
日期:2017.2
the crystalstructures of Ca3(SeO4)(TeO3)2, Ca3(SeO4)(Te3O8), Cd3(SeO4)(Te3O8), Cd3(H2O)(SO4)(Te3O8), and Sr3(H2O)2(SeO4)(TeO3)2 are metal-oxotellurate(IV) layers connected by bridging XO4 tetrahedra and/or by hydrogen-bonding interactions involving hydroxyl or water groups, whereas Cd4(SO4)(TeO3)3 and Cd5(SO4)2(TeO3)2(OH)2 crystallize as framework structures. Common to all crystalstructures is the
Reactions of tellurates(IV) of some 2nd group metals with basic oxides
作者:J. Osińska、E. Kłoczko、Z. Gontarz
DOI:10.1007/bf02635989
日期:1995.1
Calcium, strontium and barium tellurates(IV) were heated, in N-2 atmosphere, with stoichiometric amounts of CaO, SrO and BaO, respectively. The products of reactions, proceeding at 380-620 degrees C, contained orthotellurate and telluride anions formed in disproportionation.