Ga2TeSe2 crystallizes in the tetragonal I4_1md space group. Ga(1) is bonded to one Te(1) and three equivalent Se(1) atoms to form a mixture of distorted edge and corner-sharing GaTeSe3 tetrahedra. Te(1) is bonded in a water-like geometry to two equivalent Ga(1) atoms. Se(1) is bonded in a distorted T-shaped geometry to three equivalent Ga(1) atoms.
Ga2TeSe2 crystallizes in the tetragonal I4_1md space group. Ga(1) is bonded to one Te(1) and three equivalent Se(1) atoms to form a mixture of distorted edge and corner-sharing GaTeSe3 tetrahedra. The Ga(1)-Te(1) bond length is 2.57 Å. There is one shorter (2.43 Å) and two longer (2.48 Å) Ga(1)-Se(1) bond lengths. Te(1) is bonded in a water-like geometry to two equivalent Ga(1) atoms. Se(1) is bonded in a distorted T-shaped geometry to three equivalent Ga(1) atoms.