KNi2S2 crystallizes in the tetragonal I4/mmm space group. K(1) is bonded in a body-centered cubic geometry to eight equivalent S(1) atoms. Ni(1) is bonded to four equivalent S(1) atoms to form a mixture of corner and edge-sharing NiS4 tetrahedra. S(1) is bonded in a 8-coordinate geometry to four equivalent K(1) and four equivalent Ni(1) atoms.
KNi2S2 crystallizes in the tetragonal I4/mmm space group. K(1) is bonded in a body-centered cubic geometry to eight equivalent S(1) atoms. All K(1)-S(1) bond lengths are 3.31 Å. Ni(1) is bonded to four equivalent S(1) atoms to form a mixture of corner and edge-sharing NiS4 tetrahedra. All Ni(1)-S(1) bond lengths are 2.26 Å. S(1) is bonded in a 8-coordinate geometry to four equivalent K(1) and four equivalent Ni(1) atoms.