[Mn(dien)2]MnSnS4, [Mn(1,2-dap)]2Sn2S6 and [Mn(en)2]MnGeS4: from 1D anionic and neutral chains to 3D neutral frameworks

Abstract

Three new organic–inorganic hybrid manganese thiogermanates and thiostannates, namely, [Mn(en)₂]MnGeS₄ (1, en = ethylenediamine), [Mn(dien)₂]MnSnS₄ (2, dien = diethylenetriamine) and [Mn(1,2-dap)]₂Sn₂S₆ (3, 1,2-dap = 1,2-diaminopropane), have been solvothermally synthesized and structurally characterized. Compound 1 has a three-dimensional (3D) neutral framework composed of one-dimensional (1D) [MnGeS₄]²⁻ chains and unsaturated [Mn(en)₂]²⁺ cations interconnected via Mn–S bonds, whereas compounds 2–3 feature 1D [MnSnS₄]²⁻ anionic chains and 1D neutral [Mn(1,2-dap)]₂Sn₂S₆ chains, respectively. Investigation into the magnetic properties of the title compounds reveals antiferromagnetic and ferromagnetic coupling interactions between the Mn(II) ions for compounds 1 and 3, respectively. The optical and luminescence properties, as well as the thermal stabilities, were also studied.