| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1504399 | Solid State Sciences | 2014 | 5 Pages |
•New polymorph of Bi2(SO4)3 crystallizing in C2/c space group•Lattice parameters a = 17.3383(3) Å, b = 6.77803(12) Å, c = 8.30978(13) Å, β = 101.4300(12)°•A layered structure made of SO4 groups and BiO3 pyramids•Reversibly absorbs water to form Bi2(H2O)2(SO4)2(OH)2
A new polymorph of Bi2(SO4)3 was prepared by reaction of LiBiO2 with H2SO4 and its crystal structure was solved from X-ray powder diffraction. This new polymorph crystallizes in C2/c space group with lattice parameters a = 17.3383(3) Å, b = 6.77803(12) Å, c = 8.30978(13) Å, β = 101.4300(12)°. Bi2(SO4)3 presents a layered structure made of SO4 sulfate groups and signs of stereochemically active Bi3+ lone pairs. The new Bi2(SO4)3 absorbs water to form Bi2(H2O)2(SO4)2(OH)2 through an intermediate Bi2O(OH)2SO4 phase, and the transition is reversible when heated under vacuum.
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