Boroselenate Explained

The boroselenates are chemical compounds containing interlinked borate and selenate groups sharing oxygen atoms. Both selenate and borate groups are tetrahedral in shape. They have similar structures to borosulfates and borophosphates. The borotellurates' tellurium atom is much bigger, so TeO₆ octahedra appear instead.

List

	chem	crystal system	space group	unit cell Å	comment	references
boroseleniteselenate	B₂Se₃O₁₀	monoclinic	P2₁/c	a = 4.3466, b = 7.0237, c = 22.1460, β = 94.922°, Z = 4		^[1]
hydronium hexasodium boroselenate selenate	(H₃O)Na₆[B(SeO<sub>4</sub>)<sub>4</sub>](SeO₄)	tetragonal	I	a=9.9796, c=18.2614	Zunyite structure	^[2] ^[3]
tetrapotassium hydrogen boroselenate	K₄[BSe<sub>4</sub>O<sub>15</sub>(OH)]	triclinic	P	a=7.5303, b=7.5380, c=42.3659, α=88.740, β=89.971, γ=89.971° Z=6	Zunyite structure
	Rb₃[B(SeO<sub>4</sub>)<sub>3</sub>]	orthorhombic	Ibca	a=7.508, b=15.249, c=23.454, Z=8	linear
	Cs₃[B(SeO<sub>4</sub>)<sub>3</sub>]	monoclinic	P2₁/c	a=11.3552, b=7.9893, c=15.7692, β=101.013° Z=4	linear

Notes and References

Daub. Michael. Scherer. Harald. Hillebrecht. Harald. 2015-03-02. Synthesis, Crystal Structure, and Spectroscopy of the Mixed-Valent Boroseleniteselenate B 2 Se 3 O 10. Inorganic Chemistry. en. 54. 5. 2325–2330. 10.1021/ic502916j. 25695146. 0020-1669.
Bruns . Jörn . Höppe . Henning A. . Daub . Michael . Hillebrecht . Harald . Huppertz . Hubert . Borosulfates—Synthesis and Structural Chemistry of Silicate Analogue Compounds . Chemistry – A European Journal . 26 June 2020 . 26 . 36 . 7966–7980 . 10.1002/chem.201905449. 31943390 . 7384169 .
Daub . Michael . Hillebrecht . Harald . The First Boroselenates as new Silicate Analogues . Chemistry - A European Journal . 2 January 2015 . 21 . 1 . 298–304 . 10.1002/chem.201404100. 25359585 .