K2U(PdS2)3 crystallizes in the orthorhombic Fmmm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. In the second K site, K(2) is bonded in a 10-coordinate geometry to two equivalent S(2) and eight equivalent S(1) atoms. U(1) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a square co-planar geometry to two equivalent S(1) and two equivalent S(2) atoms. In the second Pd site, Pd(2) is bonded in a square co-planar geometry to four equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one U(1), one Pd(1), and one Pd(2) atom. In the second S site, S(2) is bonded to one K(2), two equivalent K(1), one U(1), and two equivalent Pd(1) atoms to form a mixture of distorted corner, face, and edge-sharing SK3UPd2 octahedra. The corner-sharing octahedral tilt angles range from 27-75°.
K2U(PdS2)3 crystallizes in the orthorhombic Fmmm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. All K(1)-S(1) bond lengths are 3.21 Å. All K(1)-S(2) bond lengths are 3.22 Å. In the second K site, K(2) is bonded in a 10-coordinate geometry to two equivalent S(2) and eight equivalent S(1) atoms. Both K(2)-S(2) bond lengths are 3.69 Å. There are four shorter (3.60 Å) and four longer (3.80 Å) K(2)-S(1) bond lengths. U(1) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. Both U(1)-S(2) bond lengths are 2.66 Å. All U(1)-S(1) bond lengths are 2.65 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a square co-planar geometry to two equivalent S(1) and two equivalent S(2) atoms. Both Pd(1)-S(1) bond lengths are 2.41 Å. Both Pd(1)-S(2) bond lengths are 2.41 Å. In the second Pd site, Pd(2) is bonded in a square co-planar geometry to four equivalent S(1) atoms. All Pd(2)-S(1) bond lengths are 2.39 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(2), one U(1), one Pd(1), and one Pd(2) atom. In the second S site, S(2) is bonded to one K(2), two equivalent K(1), one U(1), and two equivalent Pd(1) atoms to form a mixture of distorted corner, face, and edge-sharing SK3UPd2 octahedra. The corner-sharing octahedral tilt angles range from 27-75°.