(1,4-dabH)2MnSnS4: The first thiostannate with integrated Mn ions in an anionic chain structure |
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Authors: | Nicole Pienack Karina Mller Christian Nther Wolfgang Bensch |
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Institution: | aInstitute of Inorganic Chemistry, Christian-Albrechts-University of Kiel, Olshausenstr. 40, 24098 Kiel, Germany |
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Abstract: | The new thiostannate (1,4-dabH)2MnSnS4 (1,4-dab = 1,4-diaminobutane) was synthesized under solvothermal conditions. The compound crystallizes in the non-centrosymmetric space group Fdd2 with a = 22.8124(15) Å, b = 24.7887(16) Å, c = 6.4153(6) Å, Z = 8, and V = 3627.8(5) Å3. The structure consists of one-dimensional straight anionic chains composed of alternating SnS4 and MnS4 tetrahedra sharing common edges. The chains are directed along 001] and are surrounded by the organic cations which form undulated chains along 100] by strong intermolecular N–H N hydrogen bonding interactions. Several S H contacts suggest weak interactions between the anionic chains and the cations. The band gap amounts to 2.9 eV indicating that the compound is a photo-conductor. The compound is stable up to about 190 °C and decomposes in two distinct steps above this temperature. |
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Keywords: | Solvothermal synthesis Crystal structure Spectroscopic properties Thermal properties Thiostannates |
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