Three New Thioantimonates(V): Solvothermal Syntheses and Crystal Structures of [M(chxn)3]3(SbS4)2·4H2O (M = Ni,Co) and [Co(dien)2][Co(tren)SbS4]2·4H2O |
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| Authors: | Lars Engelke Christian Näther Phillipp Leisner Wolfgang Bensch Prof Dr |
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| Institution: | Kiel/Germany, Institut für Anorganische Chemie der Christian‐Albrechts‐Universit?t zu Kiel |
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| Abstract: | The three new thioantimonates(V) Ni(chxn)3]3(SbS4)2·4H2O ( I ), Co(chxn)3]3(SbS4)2·4H2O ( II ) (chxn is trans‐1,2‐diaminocyclohexane) and Co(dien)2]Co(tren)SbS4]2·4H2O ( III ) (dien is diethylenetriamine and tren is tris(2‐aminoethyl)amine) were synthesized under solvothermal conditions. Compounds I and II are isostructural crystallizing in space group C2/c. The structures are composed of isolated M(chxn)3]2+ complexes (M = Ni, Co), SbS4]3? anions and crystal water molecules. Short S···N/S···O/O···O separations indicate hydrogen bonding interactions between the different constituents. Compound III crystallizes in space group  and is composed of Co(dien)2]2+ and Co(tren)SbS4]? anions and crystal water molecules. In the cationic complex the Co2+ ion is in an octahedral environment of two dien ligands whereas in Co(tren)SbS4]? the Co2+ ion is in a trigonal bipyramidal coordination of four N atoms of tren and one S atom of the SbS4]3? anion, i.e., two different coordination polyhedra around Co2+ coexist in this compound. Like in the former compounds an extended hydrogen bonding network connects the complexes and the water molecules into a three‐dimensional network. |
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| Keywords: | Solvothermal Synthesis Thioantimonates(V) Crystal Structures |
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