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, e.g. 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]