The crystal structure of tin sulphate, SnSO[subscript 4], and comparison with isostructural SrSO[subscript 4], PbSO[subscript 4], and BaSO[subscript 4]
- Calgary
The crystal structure of tin (II) sulphate, SnSO{sub 4}, was obtained by Rietveld refinement using synchrotron high-resolution powder X-ray diffraction (HRPXRD) data. The structure was refined in space group Pbnm. The unit-cell parameters for SnSO{sub 4} are a = 7.12322(1), b = 8.81041(1), c = 5.32809(1) {angstrom}, and V = 334.383(1) {angstrom}{sup 3}. The average <Sn-O> [12] distance is 2.9391(4) {angstrom}. However, the Sn{sup 2+} cation has a pyramidal [3]-coordination to O atoms and the average <Sn-O> [3] = 2.271(1) {angstrom}. If Sn is considered as [12]-coordinated, SnSO{sub 4} has a structure similar to barite, BaSO{sub 4}, and its structural parameters are intermediate between those of BaSO{sub 4} and PbSO{sub 4}. The tetrahedral SO{sub 4} group has an average <S-O> [4] = 1.472(1) {angstrom} in SnSO{sub 4}. Comparing SnSO{sub 4} with the isostructural SrSO{sub 4}, PbSO{sub 4}, and BaSO{sub 4}, several well-defined trends are observed. The radii, rM, of the M{sup 2+}(=Sr, Pb, Sn, and Ba) cations and average <S-O> distances vary linearly with V because of the effective size of the M{sup 2+} cation. Based on the trend for the isostructural sulphates, the average <Sn-O> [12] distance is slightly longer than expected because of the lone pair of electrons on the Sn{sup 2+} cation.
- Research Organization:
- Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- OSTI ID:
- 1048963
- Journal Information:
- Powder Diffr., Journal Name: Powder Diffr. Journal Issue: (3) ; 09, 2012 Vol. 27; ISSN 0885-7156; ISSN PODIE2
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Structural trends for celestite (SrSO[subscript 4]), anglesite (PbSO[subscript 4]), and barite (BaSO[subscript 4]): Confirmation of expected variations within the SO[subscript 4] groups
Crystal-structure analysis of four mineral samples of anhydrite, CaSO[subscript 4], using synchrotron high-resolution powder X-ray diffraction data
The Orthorhomic Structure of CaCo[subscript 3], SrCO[subscript 3], PbCO[subscript 3] and BaCO[subscript 3]: Linear Structural Trends
Journal Article
·
Thu May 10 00:00:00 EDT 2012
· Am. Mineral.
·
OSTI ID:1038604
Crystal-structure analysis of four mineral samples of anhydrite, CaSO[subscript 4], using synchrotron high-resolution powder X-ray diffraction data
Journal Article
·
Wed May 28 00:00:00 EDT 2014
· Powder Diffr.
·
OSTI ID:1033014
The Orthorhomic Structure of CaCo[subscript 3], SrCO[subscript 3], PbCO[subscript 3] and BaCO[subscript 3]: Linear Structural Trends
Journal Article
·
Thu Nov 11 23:00:00 EST 2010
· Can. Mineral.
·
OSTI ID:1006201