The telluride oxides or oxytellurides are double salts that contain both telluride and oxide anions (Te2− and O2−). They are in the class of mixed anion compounds.
Compounds that can be mistakenly called "telluride oxides" are tellurium dioxide and tellurite.
Some of these are under investigation as photovoltaic materials, e.g. oxygen doped zinc telluride.
Structure Due to the different size and chemical nature of Te2− and O2− the ions occupy different positions in the crystal structure. Some of these structures are layered.
Many of the crystal systems are tetragonal. One unusual structure has stacked tubes made from tellurium, with nested tubes of antimony oxide, which contain alkali metal.
List nameformulaMWratio Te:Osystemspace groupunit cell Åvolumedensityopticalband gapCASreferencesV2Te2O2:1tetragonala = 3.9282 and c = 13.277KV3Te3O0.42hexagonalP63/ma=9.62, c=4.48359Rb0.8V2Te2O2:1Sr2MnO2Cu1.82Te2I4/mmma=4.200933 c=19.28303340.304Sr2CoO2Cu2Te2I4/mmma=4.152337 c=19.54645337.018oxygen doped zinc tellurideZnTe1−xOxGa2O2.95Te0.05Tetragadolinium bis[tetraoxidosilicate(IV)] oxide tellurideGd4(SiO4)2OTe956.78orthorhombicPnmaa=12.495 b=10.8683 c=6.8075 Z=4924.56.874colourlessNiobium iodide oxide tellurideNb4I4Te9OAntimony copper oxide tellurideCuSbTeOdibarium cobalt disilver dioxide ditellurideBa2CoO2Ag2Te2836.522:2tetragonalI4/mmmBe3Cd4Ge3O12Te12449-27-3SBC-1(K6(H2O)6Sb12O18)3Te36tellurium tubesRB-CTH-1Rb18Sb36O54(SbTe3)2(Te2)6tellurium tubesBa2TeO1:1tetragonalP4/nmma=5.0337, c=9.9437, Z=2semiconductor2.93LaCuOTe1:1tetragonalP4/nmma = 4.1775, c = 9.326162.752.31CeCuOTe1:1tetragonalP4/nmma = 4.1497, c = 9.309160.30La2O2Te1:2tetragonalI4/mmma=4.1231 c=13.096 Z=26.525Ce2O2Te1:2tetragonalI4/mmma=4.0817 c=12.947 Z=26.772CeOCuTe7.39Pr2O2Te1:2I4/mmma=4.0562 c=12.858211.56.930PrOCuTe7.32NdCuOTe1:1tetragonalP4/nmma = 4.1056, c = 9.332157.302.26Nd2O2Te1:2tetragonalI4/mmma=4.0308 c=12.7717.172samarium(III) oxide tellurideSm2TeO21:2tetragonalI4/mmma=3.9983 c=12.6557.556Eu2TeO21:2tetragonalI4/mmma=3.9756 c=12.579 Z=27.743Gd2TeO21:2tetragonalI4/mmma=3.9620 c=12.532 Z=28.004Tb2TeO21:2tetragonalI4/mmma=3.9389 c=12.454 Z=28.20689800-88-4Dy2TeO21:2tetragonalI4/mmma=3.9234 c=12.403 Z=28.430Ho2TeO2orthorhombicCmc21a=3.8505 b=12.9004 c=4.0521 Z=28.075Er2TeO2orthorhombicCmc21a=3.8263 b=12.8297 c=4.0240 Z=28.307BiOCuTe1:1tetragonalP4/nmma=4.04200 c=9.5234Bi2O2Te1:2tetragonalI4/mmma=3.98025 c=12.7039semiconductor0.23thorium oxytellurideThOTe375.641:1tetragonalP4/nmma=4.1173 c=7.5289 Z=2127.639.775black1.45UOTe1:1tetragonalP4/nmma=4.004 c=7.491U4O4Te33:4tetragonalI4/mmma=4.010 c=27.54 Z=2U2O2Te1:2neptunium oxide tellurideNp2TeO21:2TetragonalI4/mmma=4.003 c=12.73 Z=2Pu2TeO21:2tetragonalI4/mmma = 4.008, c = 12.659 Z=2203.410.580.65Am2TeO2tetragonalI4/mmma=3.994 c=12.72Cm2TeO2I4/mmma=3.98 c=12.58
References