Structure of an oxonium antimony(III) sulphate, (H3O)2Sb2(SO4)4

Abstract

Abstract. Mr=665.8, orthorhombic, space group

Self‐Assembly of Protonated 1,12‐Dodecanediamine Molecules and Strongly Undulated Uranyl Selenate Sheets in the Structure of Amine‐Templated Uranyl Selenate: (H3O)2[C12H30N2]3[(UO2)4(SeO4)8](H2O)5

“…This coordination is a rather flat pyramid that can be inferred from the O ··· H 3 O ··· O angles of 99.0–123.8°. This coordination geometry is typical for oxonium ions in oxo salt structures and has been observed in the structures of (H 3 O)(HSeO 4 ),8 (H 3 O)(HSO 4 ),9 M(H 3 O)(HSO 4 ) 2 (M = Na,10 K,11 Ag12), (H 3 O)Sb 2 (SO 4 ) 2 ,13 Zr(H 3 O) 2 (SO 4 ) 3 ,14 (H 3 O)La(SO 4 ) 2 (H 2 O),15 (H 5 O 2 )(H 3 O) 2 Nd(SO 4 ) 3 ,16 (H 3 O) 2 Nd(HSO 4 ) 3 (SO 4 ),16 etc. There are also several oxonium uranyl selenate hydrates known, although the coordination geometries of the oxonium ions in their structures are not as well‐defined as in the structure of 1 .…”

Influence of the Organic Species and Oxoanion in the Synthesis of two Uranyl Sulfate Hydrates, (H3O)2[(UO2)2(SO4)3­(H2O)]·7H2O and (H3O)2[(UO2)2(SO4)3(H2O)]·4H2O, and a Uranyl Selenate‐Selenite [C5H6N][(UO2)(SeO4)(HSeO3)]

“…The uranyl sulfate layer carries a 2 – charge that must be balanced by two H 3 O + groups in the interlayer region. The presence of H 3 O + is consistent with the strongly acidic synthesis conditions and has been reported in several minerals including for example chernikovite (uranyl phosphate) and hydroniumjarosite (sulfate),53,54 or severaloxysalts such as in the structures of (H 3 O)(HSeO 4 ),55 M (H 3 O)(HSO 4 ) 2 ( M = Na,56 K,57 Ag,58), (H 3 O)Sb 2 (SO 4 ) 2 ,59Zr(H 3 O) 2 –(SO 4 ) 3 ,60 (H 3 O)La(SO 4 ) 2 (H 2 O),61 and (H 3 O) 2 Nd(HSO 4 ) 3 (SO 4 ) 62. The hydronium presence is confirmed by spectroscopy, though the coordination arrangements of theoxonium ions in these structures are not as well‐defined they are in many previously reported structures.…”

ASb2(SO4)2(PO4) (A = H3O+, K, Rb): Layered Structure Containing Ordered Sulfate and Phosphate Anions

“…Therefore, the structure is consisted of [Sb(1)O 4 ] ψ‐trigonal bipyramid, [Sb(2)O 5 ] ψ‐square pyramid (ψ: lone pair electrons), [PO 4 ] tetrahedron, and two [SO 4 ] tetrahedra, one K + cation. The bond lengths (Table 2) in the [Sb(1)O 4 ] and [Sb(2)O 5 ] units, ranging from 1.994(7) to 2.559(8) Å, mean value of 2.15 Å and 2.21 Å, respectively, are comparable to the sum of covalent radii of Sb (0.94 Å, CN = 4 and 5) and O atoms (1.21 Å, CN = 2)27,28 and those in other antimony(III) sulfates and phosphates, such as (H 3 O) 2 Sb 4 (SO 4 ) 4 ,29 (H 3 O) 2 Sb 4 O 3 (SO 4 ) 4 · H 2 O30 and NaSb 3 O 2 (PO 4 ) 2 31. The S–O and P–O bond lengths (Table 2), ranging from 1.427(9) to 1.520 (9) Å and 1.498 (8) to 1.550 (8) Å, respectively, are consistent with previously published antimony sulfates and phosphates 19,32.…”