K4PdP2S8 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Pd(1), one S(3), one S(4), two equivalent S(1), and three equivalent S(2) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one S(1), one S(2), one S(3), and four equivalent S(4) atoms. Pd(1) is bonded in a distorted square co-planar geometry to two equivalent K(1), two equivalent S(1), and two equivalent S(3) atoms. P(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(1), one Pd(1), and one P(1) atom. In the second S site, S(2) is bonded to one K(2), three equivalent K(1), and one P(1) atom to form a mixture of distorted edge and corner-sharing SK4P trigonal bipyramids. In the third S site, S(3) is bonded in a rectangular see-saw-like geometry to one K(1), one K(2), one Pd(1), and one P(1) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one K(1), four equivalent K(2), and one P(1) atom.
K4PdP2S8 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Pd(1), one S(3), one S(4), two equivalent S(1), and three equivalent S(2) atoms. The K(1)-Pd(1) bond length is 3.52 Å. The K(1)-S(3) bond length is 3.36 Å. The K(1)-S(4) bond length is 3.44 Å. There is one shorter (3.37 Å) and one longer (3.49 Å) K(1)-S(1) bond length. There are a spread of K(1)-S(2) bond distances ranging from 3.25-3.47 Å. In the second K site, K(2) is bonded in a 7-coordinate geometry to one S(1), one S(2), one S(3), and four equivalent S(4) atoms. The K(2)-S(1) bond length is 3.66 Å. The K(2)-S(2) bond length is 3.13 Å. The K(2)-S(3) bond length is 3.26 Å. There are a spread of K(2)-S(4) bond distances ranging from 3.24-3.70 Å. Pd(1) is bonded in a distorted square co-planar geometry to two equivalent K(1), two equivalent S(1), and two equivalent S(3) atoms. Both Pd(1)-S(1) bond lengths are 2.36 Å. Both Pd(1)-S(3) bond lengths are 2.36 Å. P(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. The P(1)-S(1) bond length is 2.09 Å. The P(1)-S(2) bond length is 2.02 Å. The P(1)-S(3) bond length is 2.10 Å. The P(1)-S(4) bond length is 2.02 Å. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(1), one Pd(1), and one P(1) atom. In the second S site, S(2) is bonded to one K(2), three equivalent K(1), and one P(1) atom to form a mixture of distorted edge and corner-sharing SK4P trigonal bipyramids. In the third S site, S(3) is bonded in a rectangular see-saw-like geometry to one K(1), one K(2), one Pd(1), and one P(1) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one K(1), four equivalent K(2), and one P(1) atom.