Bis[tris­(ethyl­enediamine)manganese(II)] di-μ-tellurido-bis­[ditelluridostannate(IV)] (monoclinic modification)

The title compound, [Mn(C₂H₈N₂)₃]₂[Sn₂Te₆], contains [Mn(en)₃]²⁺ (en is ethyl­enediamine) complex cations and crystallographically centrosymmetric [Sn₂Te₆]⁴⁻ anions in its monoclinic crystal structure. The five-membered chelate rings of symmetry-related cations exhibit either λλλ or δδδ conformations. Two SnTe₄ tetra­hedra edge-share to afford the hexa­telluridodistannate(IV) anions, whose terminal Sn—Te bonds are significantly shorter than the bridging Sn—Te bonds.