Telluride oxide

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, eg oxygen doped zinc telluride.[1]

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.[2]


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.[3]

List
name formula MW ratio

Te:O

 system space group unit cell

Å

 volume density optical band gap CAS references
V2Te2O 2:1 tetragonal a = 3.9282 and c = 13.277 [4]
KV3Te3O0.42 hexagonal P63/m a=9.62, c=4.48 359 [5]
Rb0.8V2Te2O 2:1 [6]
Sr2MnO2Cu1.82Te2 I4/mmm a=4.200933 c=19.28303 340.304 [2]
Sr2CoO2Cu2Te2 I4/mmm a=4.152337 c=19.54645 337.018 [2]
oxygen doped zinc telluride ZnTe1-xOx
Ga2O2.95Te0.05 [7]
Tetragadolinium bis[tetraoxidosilicate(IV)] oxide telluride Gd4(SiO4)2OTe 956.78 orthorhombic Pnma a=12.495 b=10.8683 c=6.8075 Z=4 924.5 6.874 colourless [8]
Niobium iodide oxide telluride Nb4I4Te9O
Antimony copper oxide telluride CuSbTeO
dibarium cobalt disilver dioxide ditelluride Ba2CoO2Ag2Te2 836.52 2:2 tetragonal I4/mmm [9]
Be3Cd4Ge3O12Te 12449-27-3
SBC-1 (K6(H2O)6Sb12O18)3Te36 tellurium tubes [3][10]
RB-CTH-1 Rb18Sb36O54(SbTe3)2(Te2)6 tellurium tubes [11][12]
Ba2TeO 1:1 tetragonal P4/nmm a=5.0337, c=9.9437, Z=2 semiconductor 2.93 [13]
LaCuOTe 1:1 tetragonal P4/nmm a = 4.1775, c = 9.326 162.75 2.31 [14]
CeCuOTe 1:1 tetragonal P4/nmm a = 4.1497, c = 9.309 160.30 [14]
La2O2Te 1:2 tetragonal I4/mmm a=4.1231 c=13.096 Z=2 6.525 [15]
Ce2O2Te 1:2 tetragonal I4/mmm a=4.0817 c=12.947 Z=2 6.772 [15]
CeOCuTe 7.39
Pr2O2Te 1:2 I4/mmm a=4.0562 c=12.858 211.5 6.930 [15]
PrOCuTe 7.32
NdCuOTe 1:1 tetragonal P4/nmm a = 4.1056, c = 9.332 157.30 2.26 [14]
Nd2O2Te 1:2 tetragonal I4/mmm a=4.0308 c=12.771 7.172 [15]
samarium(III) oxide telluride Sm2TeO2 1:2 tetragonal I4/mmm a=3.9983 c=12.655 7.556 [16][15]
Eu2TeO2 1:2 tetragonal I4/mmm a=3.9756 c=12.579 Z=2 7.743 [15]
Gd2TeO2 1:2 tetragonal I4/mmm a=3.9620 c=12.532 Z=2 8.004 [15]
Tb2TeO2 1:2 tetragonal I4/mmm a=3.9389 c=12.454 Z=2 8.206 89800-88-4 [15]
Dy2TeO2 1:2 tetragonal I4/mmm a=3.9234 c=12.403 Z=2 8.430 [15]
Ho2TeO2 orthorhombic Cmc21 a=3.8505 b=12.9004 c=4.0521 Z=2 8.075 [15]
Er2TeO2 orthorhombic Cmc21 a=3.8263 b=12.8297 c=4.0240 Z=2 8.307 [15]
BiOCuTe 1:1 tetragonal P4/nmm a=4.04200 c=9.5234 [17]
Bi2O2Te 1:2 tetragonal I4/mmm a=3.98025 c=12.7039 semiconductor 0.23 [18]
thorium oxytelluride ThOTe 375.64 1:1 tetragonal P4/nmm a=4.1173 c=7.5289 Z=2 127.63 9.775 black 1.45 [19]
UOTe 1:1 tetragonal P4/nmm a=4.004 c=7.491 [20][21]
U4O4Te3 3:4 tetragonal I4/mmm a=4.010 c=27.54 Z=2 [20]
U2O2Te 1:2 [20]
neptunium oxide telluride Np2TeO2 1:2 Tetragonal I4/mmm a=4.003 c=12.73 Z=2 [22]
Pu2TeO2 1:2 tetragonal I4/mmm a = 4.008, c = 12.659 Z=2 203.4 10.58 0.65 [23]
Am2TeO2 tetragonal I4/mmm a=3.994 c=12.72
Cm2TeO2 I4/mmm a=3.98 c=12.58 [24]

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