Quaternary Tin(IV) Antimony(III) Sulfide Decorated with Lanthanum(III) Ethylenediamine Complexes: [La(en)₄SbSnS₅]₂·0.5H₂O

A quaternary tin(IV) antimony(III) sulfide decorated by lanthanum(III) ethylenediamine complexes, namely, [La(en)₄SbSnS₅]₂·0.5H₂O (1; en = ethylenediamine), has been solvothermally synthesized and structurally, thermally, and optically characterized. Its structure features an isolated hexanuclear molecule of [La(en)₄SbSnS₅]₂. The intermolecule hydrogen-bond interactions result in a three-dimensional supramolecular network, which remains intact upon dehydration.