Eu3S4 crystallizes in the cubic I-43d space group. Eu(1) is bonded to eight equivalent S(1) atoms to form a mixture of distorted edge, face, and corner-sharing EuS8 hexagonal bipyramids. S(1) is bonded to six equivalent Eu(1) atoms to form a mixture of distorted edge, face, and corner-sharing SEu6 octahedra. The corner-sharing octahedral tilt angles range from 18-49°.
Eu3S4 crystallizes in the cubic I-43d space group. Eu(1) is bonded to eight equivalent S(1) atoms to form a mixture of distorted edge, face, and corner-sharing EuS8 hexagonal bipyramids. There are four shorter (2.88 Å) and four longer (3.08 Å) Eu(1)-S(1) bond lengths. S(1) is bonded to six equivalent Eu(1) atoms to form a mixture of distorted edge, face, and corner-sharing SEu6 octahedra. The corner-sharing octahedral tilt angles range from 18-49°.