Quaternary tin(IV) antimony(III) sulfide decorated with lanthanum(III) ethylenediamine complexes: [La(en)4SbSnS5]2 x 0.5 H2O.

A quaternary tin(IV) antimony(III) sulfide decorated by lanthanum(III) ethylenediamine complexes, namely, [La(en)(4)SbSnS(5)](2) x 0.5 H(2)O (1; en = ethylenediamine), has been solvothermally synthesized and structurally, thermally, and optically characterized. Its structure features an isolated hexanuclear molecule of [La(en)(4)SbSnS(5)](2). The intermolecule hydrogen-bond interactions result in a three-dimensional supramolecular network, which remains intact upon dehydration.