Borotellurites

Borotellurites are chemical mixed anion compounds that contain any kind of borate and tellurite ions bound together via oxygen.^[1] They are distinct from borotellurates in which tellurium is in the +6 oxidation state. There are also analogous boroselenites, with selenium instead of tellurium also in the +4 oxidation state.^[1] Borotellurites are colourless and many are birefringent.^[1]

List

chem	mw	crystal system	space group	unit cell	volume	density	comments	references
YTeBO₅	307.32	orthorhombic	Pbca	a=10.458 b=6.5842 c=11.092 Z=8	763.75	5.345	birefringence 0.08@546 nm	^[1]
K₃BaTeB₇O₁₅		monoclinic	P2₁/c	a=8.979 b=6.303 c=25.869 β=98.095°			transparent above 235 nm; birefringence 0.03@1064 nm	^[2]
Rb₃BaTeB₇O₁₅		monoclinic	P2₁/n	a=9.102 b=6.409 c=25.794 β=97.278°				^[3]
LaTeBO₅	357.32	orthorhombic	Pbca	a=10.8220 b=6.9216 c=11.5812 Z=8	867.50	5.472	colourless; large birefringence	^[4]
β-LaTeBO₅	357.32	monoclinic	P2₁/c	a=16.7501 b=7.1820 c=8.3492 β=104.124° Z=4	974.04	4.873	birefringence 0.134@546 nm	^[1]
GdTeBO₅	375.66	orthorhombic	Pbca	a=10.5878 b=6.6574 c=11.2141 Z=8	790.45	6.313	birefringence 0.074@546 nm	^[1]
TbTeBO₅	373.33	orthorhombic	Pbca	a=10.5343 b=6.6235 c=11.153 Z=8	778.17	6.441		^[1]
PbTeB₄O₉		triclinic	P-1	a=6.5740 b=6.7445 c=9.8903 α=70.105° β=78.877° γ=61.726°			birefringence 0.099@1064 nm	^[5]

References

1 2 3 4 5 6 7 Chen, Peng-Fei; Hu, Chun-Li; Zhang, Ming-Zhi; Mao, Jiang-Gao (2025). "β-LaTeBO₅ and RETeBO₅ (RE = Y, Gd, Tb): explorations of new optical materials in the RE( iii )–Te( iv )–B–O system". Inorganic Chemistry Frontiers. 12 (7): 2638–2647. doi:10.1039/D4QI03203A. ISSN 2052-1553.
↑ 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.
↑ Sun, Jun; Mutailipu, Miriding; Cheng, Shichao; Yang, Zhihua; Pan, Shilie (2020). "Rb₃BaTeB₇O₁₅: a novel [B₇O₁₆] fundamental building block in a new telluroborate with [TeO₃] polyhedra". Dalton Transactions. 49 (26): 8911–8917. doi:10.1039/D0DT01102A. ISSN 1477-9226. PMID 32555807.
↑ Wang, Jiankang; Wu, Hongping; Yu, Hongwei; Hu, Zhanggui; Wang, Jiyang; Wu, Yicheng (2021). "LaTeBO₅: a new borotellurite with a large birefringence activated by the highly distorted [Te^(iv)O₄] group". Dalton Transactions. 50 (36): 12404–12407. doi:10.1039/D1DT01639C. ISSN 1477-9226. PMID 34184016.
↑ Zhang, Ruonan; Tudi, Abudukadi; Yang, Xia; Wang, Xuping; Yang, Zhihua; Han, Shujuan; Pan, Shilie (2024). "PbTeB₄O₉: a lead tellurium borate with unprecedented fundamental building block [B₄O₁₀] and large birefringence". Chemical Communications. 60 (3): 340–343. doi:10.1039/D3CC05382B. ISSN 1359-7345. PMID 38078370.

[:0-1] 1 2 3 4 5 6 7 Chen, Peng-Fei; Hu, Chun-Li; Zhang, Ming-Zhi; Mao, Jiang-Gao (2025). "β-LaTeBO₅ and RETeBO₅ (RE = Y, Gd, Tb): explorations of new optical materials in the RE( iii )–Te( iv )–B–O system". Inorganic Chemistry Frontiers. 12 (7): 2638–2647. doi:10.1039/D4QI03203A. ISSN 2052-1553.

[2] 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.

[3] Sun, Jun; Mutailipu, Miriding; Cheng, Shichao; Yang, Zhihua; Pan, Shilie (2020). "Rb₃BaTeB₇O₁₅: a novel [B₇O₁₆] fundamental building block in a new telluroborate with [TeO₃] polyhedra". Dalton Transactions. 49 (26): 8911–8917. doi:10.1039/D0DT01102A. ISSN 1477-9226. PMID 32555807.

[4] Wang, Jiankang; Wu, Hongping; Yu, Hongwei; Hu, Zhanggui; Wang, Jiyang; Wu, Yicheng (2021). "LaTeBO₅: a new borotellurite with a large birefringence activated by the highly distorted [Te^(iv)O₄] group". Dalton Transactions. 50 (36): 12404–12407. doi:10.1039/D1DT01639C. ISSN 1477-9226. PMID 34184016.

[5] Zhang, Ruonan; Tudi, Abudukadi; Yang, Xia; Wang, Xuping; Yang, Zhihua; Han, Shujuan; Pan, Shilie (2024). "PbTeB₄O₉: a lead tellurium borate with unprecedented fundamental building block [B₄O₁₀] and large birefringence". Chemical Communications. 60 (3): 340–343. doi:10.1039/D3CC05382B. ISSN 1359-7345. PMID 38078370.

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