Redetermination of the crystal structure of [Na4(H2O)14]SnS4: a compound containing a novel chain of aquated sodium ions |
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| Authors: | Roger D Willett Ashwani Vij Joseph M Imhof David A Cleary |
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| Institution: | (1) Department of Chemistry, Washington State University, Pullman, Washington, 99164;(2) University Research Office, University of Idaho, Moscow, Idaho, 83844;(3) Department of Chemistry, Gonzaga University, Spokane, Washington, 99258 |
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| Abstract: | Na4(H2O)14]SnS4 is obtained by the reaction of Na2S·9H2O with SnCl4·5H2O in aqueous solution at 21°C. It crystallizes in the space group Cc with a = 8.621(2) Å, b = 23.543(5) Å, c = 11.358(2) Å,  = 110.58(3)° and V = 2158.2 Å3 with Z = 2. Refinement of 3826 unique reflections from a racemically twinned crystal yielded a final value of R1 = 0.0464 (|F| > 4 ) and wR2 = 0.104 and a goodness of fit of 1.125. The structure consists of a Na+/H2O network supporting the tetrahedral SnS4
4– anions. Water molecules or sulfide ions octahedrally coordinate each of the four crystallographically independent Na+ ions. The dominant feature of the structure is the existence of zigzag chains of edgeshared Na octahedra. These chains are tied together into a three-dimensional network by bridging Na(H2O)6 octahedra and individual H2O molecules. |
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| Keywords: | Hydrated salt tin(IV)tetrasulfide chain structure [Na4(H2O)14]SnS4 |
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