Borotellurites

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

^ 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.
^ 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.

[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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