A tellurite tellurate is chemical compound or salt that contains tellurite and tellurate anions [TeO3]2- [TeO4 ]2-. These are mixed anion compounds, meaning the compounds are cations that contain one or more anions. Some have third anions. Environmentally, tellurite [TeO3]2- is the more abundant anion due to tellurate's [TeO4 ]2- low solubility limiting its concentration in biospheric waters. Another way to refer to the anions is tellurium's oxyanions, which happen to be relatively stable.[1]

Naming

A tellurite tellurate compound may also be called a tellurate tellurite. Compounds that contain the anions follow basic nomenclature rules, the cation is named first, followed by the anion.[2] As individual ions current IUPAC naming conventions dictate that compounds containing what was conventionally known as the tellurite ion, [TeO3]2-, be named as tellurate (IV) compounds, while other tellurates are labeled tellurate (VI) compounds. Furthering confusion, a number of other tellurate oxyanions exist, including pentoxotellurate, [TeO5]4-, and ditellurate, [Te2O10]8-. Additionally, a number of compounds that do not even include tellurium oxyanions still have "tellurate" in their names, as in the case of octafluoridotellurate, [TeF8]2-.[3]

Production

One way to produce a tellurite tellurate compound is by heating oxides together.[4] Tellurite tellurate compounds can also occur naturally as minerals such as Carlfriesite Ca[Te4+2Te6+O8].[5]

Properties

Tellurite tellurate compounds can crystalize under certain conditions. Monoclinic and orthorhombic dominate crystal structures of the tellurite tellurates.[5] Most compounds are transparent from near ultraviolet to the near infrared. Te-O bonds cause absorption lines in infrared. Sodium tellurite exhibit

Related to these are the selenate selenites and sulfate sulfites by varying the chalcogen.

List

name formula ratio

TeO3:TeO4

 mw system space group unit cell Å volume density optical references
NH4Te2O5(OH) 1:1 370.24 orthorhombic Pnma a=7.340 b=5.546 c=13.164 Z=4 535.9 4.50 [6]
K2Te4O12 1:3 780.59 monoclinic C2/m a=12.360 b=7.248 c=11.967 β =105.68 Z=4 1032.2 5.03 [4][1]
K4[Te56+Te34+]O23 3:5 1545.18 orthorhombic Pna21 a = 19.793, b = 14.664, c = 7.292, Z = 4 [7]
Carlfriesite Ca[Te4+2Te6+O8] 2:1 550.87 monoclinic C2/c a=12.576 b=5.662 c=9.884 β=115.56 6.3 [5]
K4V6[Te24+Te6+]O24 2:1 1228.83 trigonal R3c a = 9.7075, c = 42.701, Z = 6 3484.9 [8]
Co2+6(Te6+O6)(Te4+O3)2Cl2 2:1 999.30 tetragonal P42/mbc a = 8.59 c = 5.91 [5]
Rb4[Te56+Te34+]O23 3:5 1730.66 orthorhombic Pna21 a = 19.573, b = 14.448, c = 7.273, Z = 4 [7]
Rb4V6[Te24+Te6+]O24 2:1 1414.31 trigonal R3c a = 9.8399, c = 43.012, Z = 6 3606.6 [8]
Sr[Te4+2Te6+O8] 2:1 598.42 tetragonal P42/m a=6.8321 c=6.7605 [5]
SrCuTe2O7 1:1 518.36 orthorhombic Pbcm a = 7.1464, b = 15.061, c = 5.4380, Z = 4 585.3 [9]
NaYTe2O7 1:1 479.10 monoclinic P21/n a=6.7527 b=7.5077 c=11.8867 β =99.935 Z=4 593.59 5.361 [10]
RbTe1·25Mo0·75O6 a=10.469 [11]
(Ag,Na)2Te4O15 x=0.4 2:2 monoclinic P21/c a = 6.333, b = 24.681, c = 7.308, β = 110.84° Z = 4 [4]
Ag2[Te4+Te6+O6] 1:1 566.93 monoclinic P21/m a=5.4562 b=7.4009 c=6.9122 β=101.237 [5]
Ag2[Te4+2Te6+2O11] 2:2 902.13 triclinic P1 a=7.287 b=7.388 c=9.686 α=95.67 β=94.10 γ=119.40 [5]
Cd2Te4+Te6+O7 1:1 592.02 monoclinic P21/c a=9.3039 b=7.3196 c=13.2479 β=122.914 [5]
Cs2Te4+Te36+O12 1:3 968.20 rhombohedral R3m a=7.2921 c=18.332 [12]
CsTe2O6–x 1:1 484.10 cubic [12]
CsTe2O6–x 1:1 484.10 orthorhombic [12]
BaTe2O6 1:1 488.52 orthorhombic Cmcm a=5.569 b=12,796 c=7.320 Z=4 6.19 [5][2]
BaMgTe2O7 1:1 528.83 orthorhombic Ama2 a = 5.558, b = 15.215, c = 7.307 Z = 4 617.9 SHG 5 × KDP [13]
CsTe1·13Mo0·864O6 a=10.643 [11]
BaCoTeO3TeO4 1:1 563.46 orthorhombic Ama2 [14]
BaCuTeO3TeO4 1:1 568.07 orthorhombic Ama2 a = 5.4869, b =15.412, c = 7.2066, Z = 4. 609.42 [3]
BaZnTe2O7 569.91 orthorhombic Ama2 a = 5.5498, b = 15.316, c = 7.3098, Z = 4 621.34 SHG 5 × KDP [13]
CeV3Te3O15(OH)3·2H2O 995.74 hexagonal P63/mmc a=12.166 c=12.537 Z=4 1606.9 4.116 dark red [15]
PrV3Te3O15(OH)3·2H2O 996.53 hexagonal P63/mmc a=12.1147 c=12.4949 Z=4 1588.1 4.168 dark red [15]
NdV3Te3O15(OH)3·H2O 983.86 hexagonal P63/mmc a=12.1075 c=12.4572 Z=4 1581.5 4.132 dark red [15]
SmV3Te3O15(OH)3·H2O 989.97 hexagonal P63/mmc a=12.1068 c=12.4509 Z=4 1580.5 4.160 dark red [15]
EuV3Te3O15(OH)3·H2O 991.58 hexagonal P63/mmc a=12.0731 c=12.3674 Z=4 1561.2 4.219 dark red [15]
GdV3Te3O15(OH)3·H2O 996.87 hexagonal P63/mmc a=12.0745 c=12.3701 Z=4 1561.9 4.239 dark red [15]
RbTe1·5W0·5O6 a=10.462 [11]
CsTe1·625W0·375O6 a=10.543 [11]
α-Hg2Te2O7 1:1 768.38 monoclinic C2/c a=12.910 b=7.407 c=13.256 β =112.044 Z=8 [16]
β-Hg2Te2O7 1:1 768.38 orthorhombic Aea2 a=7.441, b=23.713 ,c=13.522, Z=16 [16]
PbCuTe2O7 1:1 637.94 orthorhombic Pbcm a = 7.2033, b = 15.047, c = 5.4691, Z = 4 592.78 [9]
Bi[(Bi3+Te4+)Te6+O8] 801.16 [5]
(Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2 3111.30 trigonal P3 2 1 a=9.1219(17), c=11.9320(9) 4.65 Viridian green [17]

References

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  2. 1 2 Koçak, M.; Platte, C.; Trömel, M. (1979-06-01). "Bariumhexaoxoditellurat(IV,VI): Sauerstoffkoordinationszahl fünf am vierwertigen Tellur". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry. 35 (6): 1439–1441. Bibcode:1979AcCrB..35.1439K. doi:10.1107/S0567740879006646. ISSN 0567-7408. S2CID 94468970.
  3. 1 2 Sedello, O.; Müller-Buschbaum, Hk. (1996-04-01). "Synthese und Kristallstruktur des Barium -Kupfer-Tellurit-Tellurats BaCuTeO 3 TeO 4 / Synthesis and Crystal Structure of the Barium Copper Tellurite-Tellurate BaCuTeO 3 TeO 4". Zeitschrift für Naturforschung B. 51 (4): 465–468. doi:10.1515/znb-1996-0403. ISSN 1865-7117. S2CID 94953365.
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  5. 1 2 3 4 5 6 7 8 9 10 Christy, A. G.; Mills, S. J.; Kampf, A. R. (May 2016). "A review of the structural architecture of tellurium oxycompounds". Mineralogical Magazine. 80 (3): 415–545. Bibcode:2016MinM...80..415.. doi:10.1180/minmag.2016.080.093. ISSN 0026-461X. S2CID 99691253.
  6. ↑ Philippot, E.; Benmiloud, L.; Maurin, M.; Moret, J. (1979-09-01). "Pentacoordination de l'atome de tellure(IV) par les atomes d'oxygène. Etude cristallochimique d'un oxotellurate mixte: NH 4 [Te IV Te VI O 5 (OH)]". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry. 35 (9): 1986–1989. Bibcode:1979AcCrB..35.1986P. doi:10.1107/S0567740879008311. ISSN 0567-7408.
  7. 1 2 Minimol, M. P.; Vidyasagar, K. (December 2005). "Syntheses and Structural Characterization of New Mixed-Valent Tellurium Oxides, A 4 [Te 5 6+ Te 3 4+ ]O 23 (A = Rb and K)". Inorganic Chemistry. 44 (25): 9369–9373. doi:10.1021/ic0515599. ISSN 0020-1669. PMID 16323922.
  8. 1 2 Zhu, Tianxiang; Qin, Jingui; Halasyamani, P. Shiv (2011). "Synthesis and structure of A4V6[Te24+Te6+]O24 (A = K, Rb)—two new quaternary mixed-valent tellurium oxides". Dalton Transactions. 40 (34): 8527–8532. doi:10.1039/c1dt10538h. ISSN 1477-9226. PMID 21695319.
  9. 1 2 Yeon, Jeongho; Kim, Sang-Hwan; Hayward, Michael A.; Halasyamani, P. Shiv (2011-09-05). ""A" Cation Polarity Control in ACuTe 2 O 7 (A = Sr 2+ , Ba 2+ , or Pb 2+ )". Inorganic Chemistry. 50 (17): 8663–8670. doi:10.1021/ic2012217. ISSN 0020-1669. PMID 21800873.
  10. ↑ Xia, Houping; Shen, Jinni; Zhu, Zhian; Lv, Yangyang; Ma, Qian; Wang, Haiqing (March 2020). "NaYTe2O7: A new compound with mixed valence of tellurium and large birefringence". Journal of Alloys and Compounds. 816: 152535. doi:10.1016/j.jallcom.2019.152535. S2CID 210513971.
  11. 1 2 3 4 Fukina, Diana G.; Suleimanov, Eugeny V.; Boryakov, Aleksey V.; Zubkov, Sergey Yu; Koryagin, Andrey V.; Volkova, Natalia S.; Gorshkov, Alexey P. (January 2021). "Structure analysis and electronic properties of ATe4+0.5Te6+1.5-xM6+xO6 (A=Rb, Cs, M6+=Mo, W) solid solutions with β-pyrochlore structure". Journal of Solid State Chemistry. 293: 121787. Bibcode:2021JSSCh.29321787F. doi:10.1016/j.jssc.2020.121787. S2CID 225108000.
  12. 1 2 3 Siritanon, Theeranun; Li, Jun; Stalick, Judith K.; Macaluso, Robin T.; Sleight, Arthur W.; Subramanian, M. A. (2011-09-05). "CsTe 2 O 6– x : Novel Mixed-Valence Tellurium Oxides with Framework-Deficient Pyrochlore-Related Structure". Inorganic Chemistry. 50 (17): 8494–8501. doi:10.1021/ic2010375. ISSN 0020-1669. PMID 21793494.
  13. 1 2 Yeon, Jeongho; Kim, Sang-Hwan; Nguyen, Sau Doan; Lee, Hana; Halasyamani, P. Shiv (2012-02-20). "Two New Noncentrosymmetric (NCS) Polar Oxides: Syntheses, Characterization, and Structure–Property Relationships in BaMTe 2 O 7 (M = Mg 2+ or Zn 2+ )". Inorganic Chemistry. 51 (4): 2662–2668. doi:10.1021/ic202602q. ISSN 0020-1669. PMID 22296559.
  14. ↑ Li, Lisi; Hu, Xunwu; Liu, Zengjia; Yu, Jia; Cheng, Benyuan; Deng, Sihao; He, Lunhua; Cao, Kun; Yao, Dao-Xin; Wang, Meng (August 2021). "Structure and magnetic properties of the $S=3/2$ zigzag spin chain antiferromagnet BaCoTe$_2$O$_7$". Science China Physics, Mechanics & Astronomy. 64 (8): 287412. arXiv:2105.09556. doi:10.1007/s11433-021-1726-0. ISSN 1674-7348. S2CID 234790277.
  15. 1 2 3 4 5 6 Lin, Jian; Diefenbach, Kariem; Fu, Jingcheng; Cross, Justin N.; Clark, Ronald J.; Albrecht-Schmitt, Thomas E. (2014-09-02). "LnV 3 Te 3 O 15 (OH) 3 · n H 2 O (Ln = Ce, Pr, Nd, Sm, Eu, Gd; n = 1–2): A New Series of Semiconductors with Mixed-Valent Tellurium (IV,VI) Oxoanions". Inorganic Chemistry. 53 (17): 9058–9064. doi:10.1021/ic501068e. ISSN 0020-1669. PMID 25144682.
  16. 1 2 Weil, Matthias (2003-10-01). "Dimorphism in mercury(II) tellurite(IV) tellurate(VI): preparation and crystal structures of α - and β -Hg 2 Te 2 O 7". Zeitschrift für Kristallographie - Crystalline Materials. 218 (10): 691–698. Bibcode:2003ZK....218..691W. doi:10.1524/zkri.218.10.691.20762. ISSN 2196-7105. S2CID 98559761.
  17. ↑ https://www.mindat.org/min-3983.html
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