The tin sulfates Sn(SO4)2 and Sn2(SO4)3: crystal structures, optical and thermal properties. Issue 37 (20th August 2021)

• Record Type: Journal Article
• Authors: Hämmer, Matthias; Netzsch, Philip; Klenner, Steffen; Neuschulz, Kai; Struckmann, Mona; Wickleder, Mathias S.; Daub, Michael; Hillebrecht, Harald; Pöttgen, Rainer; Höppe, Henning A.
• Is Part Of: Dalton transactions. Volume 50:Issue 37(2021)
• Page Start: 12913
• Page End: 12922
• Publication Date: 2021-08-20
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt02189c
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Two polymorphs of tin(iv ) sulfates and a mixed-valent tin (ii, iv ) sulfate were characterised structurally, by Mössbauer, UV-vis, IR spectroscopy and thermally yielding three new structure types, two related to TiO2 polymorphs or features therein. Abstract : We report the crystal structures of two tin(iv ) sulfate polymorphs Sn(SO4 )2 -I ( P 21 / c (no. 14), a = 504.34(3), b = 1065.43(6), c = 1065.47(6) pm, β = 91.991(2)°, 4617 independent reflections, 104 refined parameters, w R 2 = 0.096) and Sn(SO4 )2 -II ( P 21 / n (no. 14), a = 753.90(3), b = 802.39(3), c = 914.47(3) pm, β = 92.496(2)°, 3970 independent reflections, 101 refined parameters, w R 2 = 0.033). Moreover, the first heterovalent tin sulfate Sn2 (SO4 )3 is reported which adopts space group P 1̄ (no. 2) ( a = 483.78(9), b = 809.9(2), c = 1210.7(2) pm, α = 89.007(7)°, β = 86.381(7)°, γ = 73.344(7)°, 1602 independent reflections, 152 refined parameters, w R 2 = 0.059). Finally, SnSO4 – the only tin sulfate with known crystal structure – was revised and information complemented. The optical and thermal properties of all tin sulfates are investigated by FTIR, UV-vis, luminescence and 119 Sn Mössbauer spectroscopy as well as thermogravimetry and compared.