Ba(LaS2)2 crystallizes in the tetragonal I-42d space group. Ba(1) is bonded in a 8-coordinate geometry to eight equivalent S(1) atoms. La(1) is bonded in a 8-coordinate geometry to eight equivalent S(1) atoms. S(1) is bonded to two equivalent Ba(1) and four equivalent La(1) atoms to form a mixture of distorted edge, corner, and face-sharing SBa2La4 octahedra. The corner-sharing octahedral tilt angles range from 15-51°.
Ba(LaS2)2 crystallizes in the tetragonal I-42d space group. Ba(1) is bonded in a 8-coordinate geometry to eight equivalent S(1) atoms. There are four shorter (3.11 Å) and four longer (3.27 Å) Ba(1)-S(1) bond lengths. La(1) is bonded in a 8-coordinate geometry to eight equivalent S(1) atoms. There are a spread of La(1)-S(1) bond distances ranging from 2.91-3.25 Å. S(1) is bonded to two equivalent Ba(1) and four equivalent La(1) atoms to form a mixture of distorted edge, corner, and face-sharing SBa2La4 octahedra. The corner-sharing octahedral tilt angles range from 15-51°.