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
Heat capacities and thermodynamic functions of the tellurates(IV) of zinc and cadmium
作者:G. Gospodinov、Lubka Atanasova
DOI:10.1007/s10973-005-0914-0
日期:2005.11
The temperature dependencies of the molar heat capacities of ZnTeO3, Zn2Te3O8, CdTeO3 and CdTe2O5 are determined. The experimental data are statistically processed using the least squares method to determine the parameters in the equations for the corresponding compounds: Cp,m=a+b(T/K)-c(T/K)-2. These equations and the standard molar entropies are used to determine ΔT0S0m, ΔTTH0m and (Φ0m+ΔT,0H0m/T) for T'=298.15 K.