Borotellurites are chemical mixed anion compounds that contain any kind of borate and tellurite ions bound together via oxygen. They are distinct from borotellurates in which tellurium is in +6 oxidation state. There are also analogous boroselenites, with selenium instead of tellurium, and borosulfates containing sulfur. Borotellurites are colourless.

List

chem mw crystal system space group unit cell volume density comments references
K3BaTeB7O15 monoclinic P21/c a=8.979 b=6.303 c=25.869 β=98.095° transparent above 235 nm [1]
LaTeBO5 357.32 orthorhombic Pbca a=10.8220 b=6.9216 c=11.5812 Z=8 867.50 5.472 colourless; large birefringence [2]

References

  1. Zhang, Ting; Deng, Li-Han; Xie, Wen-Long; Bai, Chun-Yan; Feng, Jun-Wei; Zheng, Jing-Jing; An, Dong-Hai (March 2022). "K3BaTeB7O15: A new borotellurite with mixed metal cations". Journal of Molecular Structure. 1252: 132181. doi:10.1016/j.molstruc.2021.132181.
  2. Wang, Jiankang; Wu, Hongping; Yu, Hongwei; Hu, Zhanggui; Wang, Jiyang; Wu, Yicheng (2021). "LaTeBO 5 : a new borotellurite with a large birefringence activated by the highly distorted [Te (iv) O 4 ] group". Dalton Transactions. 50 (36): 12404–12407. doi:10.1039/D1DT01639C. ISSN 1477-9226.
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