Mn(Ge2S5)2(N(CH3)4)2 crystallizes in the tetragonal I-4 space group. The structure consists of four tetramethylammonium molecules inside a Mn(Ge2S5)2 framework. In the Mn(Ge2S5)2 framework, Mn(1) is bonded to four equivalent S(1) atoms to form MnS4 tetrahedra that share corners with four equivalent Ge(1)S4 tetrahedra. Ge(1) is bonded to one S(1), one S(3), and two equivalent S(2) atoms to form GeS4 tetrahedra that share  a cornercorner with one Mn(1)S4 tetrahedra and corners with three equivalent Ge(1)S4 tetrahedra. There are three inequivalent S sites. In the first S site, S(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one Ge(1) atom. In the second S site, S(2) is bonded in a water-like geometry to two equivalent Ge(1) atoms. In the third S site, S(3) is bonded in a water-like geometry to two equivalent Ge(1) atoms.
Mn(Ge2S5)2(N(CH3)4)2 crystallizes in the tetragonal I-4 space group. The structure consists of four tetramethylammonium molecules inside a Mn(Ge2S5)2 framework. In the Mn(Ge2S5)2 framework, Mn(1) is bonded to four equivalent S(1) atoms to form MnS4 tetrahedra that share corners with four equivalent Ge(1)S4 tetrahedra. All Mn(1)-S(1) bond lengths are 2.44 Å. Ge(1) is bonded to one S(1), one S(3), and two equivalent S(2) atoms to form GeS4 tetrahedra that share  a cornercorner with one Mn(1)S4 tetrahedra and corners with three equivalent Ge(1)S4 tetrahedra. The Ge(1)-S(1) bond length is 2.19 Å. The Ge(1)-S(3) bond length is 2.26 Å. There is one shorter (2.26 Å) and one longer (2.27 Å) Ge(1)-S(2) bond length. There are three inequivalent S sites. In the first S site, S(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one Ge(1) atom. In the second S site, S(2) is bonded in a water-like geometry to two equivalent Ge(1) atoms. In the third S site, S(3) is bonded in a water-like geometry to two equivalent Ge(1) atoms.