The synthesis and characterisation of four new antimony sulphides incorporating transition-metal complexes Original Research Article

Four new antimony sulphides, [T(dien)2]Sb6S10·xH2O [T=Ni (1), Co (2)x≈0.45], [Co(en)3]Sb8S13(3) and [Ni(en)3]Sb12S19(4), have been synthesised under solvothermal conditions. In compounds (1) – (3), Sb12S228− secondary building units are connected to form layered structures. In (1) and (2), Sb6S102− layers containing Sb16S16 heterorings are separated by [T(dien]2]2+ cations, whilst in (3), Sb8S132− layers contain [Co(en)3]2+ cations within large Sb22S22 pores. Compound (4) adopts a three-dimensional structure in which [Ni(en)3]2+ cations lie within ca. 5 Å wide channels.