Ag2MnGeTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Mn(1) is bonded to four equivalent Te(1) atoms to form MnTe4 tetrahedra that share corners with four equivalent Ge(1)Te4 tetrahedra and corners with eight equivalent Ag(1)Te4 tetrahedra. Ag(1) is bonded to four equivalent Te(1) atoms to form AgTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra, corners with four equivalent Ag(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra and corners with eight equivalent Ag(1)Te4 tetrahedra. Te(1) is bonded to one Mn(1), two equivalent Ag(1), and one Ge(1) atom to form corner-sharing TeMnAg2Ge tetrahedra.
Ag2MnGeTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Mn(1) is bonded to four equivalent Te(1) atoms to form MnTe4 tetrahedra that share corners with four equivalent Ge(1)Te4 tetrahedra and corners with eight equivalent Ag(1)Te4 tetrahedra. All Mn(1)-Te(1) bond lengths are 2.75 Å. Ag(1) is bonded to four equivalent Te(1) atoms to form AgTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra, corners with four equivalent Ag(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. All Ag(1)-Te(1) bond lengths are 2.79 Å. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra and corners with eight equivalent Ag(1)Te4 tetrahedra. All Ge(1)-Te(1) bond lengths are 2.67 Å. Te(1) is bonded to one Mn(1), two equivalent Ag(1), and one Ge(1) atom to form corner-sharing TeMnAg2Ge tetrahedra.