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PdHg is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Pd is bonded to eight equivalent Hg atoms to form a mixture of distorted face, edge, and corner-sharing PdHg8 cuboctahedra. All Pd–Hg bond lengths are 2.90 Å. Hg is bonded to eight equivalent Pd atoms to form a mixture of distorted face, edge, and corner-sharing HgPd8 cuboctahedra.
Pd2Hg5 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Pd is bonded to two equivalent Pd and ten Hg atoms to form a mixture of edge, corner, and face-sharing PdHg10Pd2 cuboctahedra. Both Pd–Pd bond lengths are 3.00 Å. There are a spread of Pd–Hg bond distances ranging from 2.95–3.08 Å. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 10-coordinate geometry to four equivalent Pd and six Hg atoms. There are a spread of Hg–Hg bond distances ranging from 3.00–3.25 Å. In the second Hg site, Hg is bonded in a distorted q6 geometry to four equivalent Pd and six Hg atoms. Both Hg–Hg bond lengths are 3.00 Å.
Pd3Hg is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pd is bonded to eight equivalent Pd and four equivalent Hg atoms to form PdHg4Pd8 cuboctahedra that share corners with twelve equivalent PdHg4Pd8 cuboctahedra, edges with eight equivalent HgPd12 cuboctahedra, edges with sixteen equivalent PdHg4Pd8 cuboctahedra, faces with four equivalent HgPd12 cuboctahedra, and faces with fourteen equivalent PdHg4Pd8 cuboctahedra. All Pd–Pd bond lengths are 2.87 Å. All Pd–Hg bond lengths are 2.87 Å. Hg is bonded to twelve equivalent Pd atoms to form HgPd12 cuboctahedra that share corners with twelve equivalent HgPd12 cuboctahedra, edges with twenty-four equivalent PdHg4Pd8 cuboctahedra, faces with six equivalent HgPd12 cuboctahedra, and faces with twelve equivalent PdHg4Pd8 cuboctahedra.
PdHg is alpha-derived structured and crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Pd is bonded in a 7-coordinate geometry to seven equivalent Hg atoms. There are a spread of Pd–Hg bond distances ranging from 2.83–2.87 Å. Hg is bonded in a 7-coordinate geometry to seven equivalent Pd atoms.
PdHg3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pd is bonded to twelve equivalent Hg atoms to form PdHg12 cuboctahedra that share corners with twelve equivalent PdHg12 cuboctahedra, edges with twenty-four equivalent HgHg8Pd4 cuboctahedra, faces with six equivalent PdHg12 cuboctahedra, and faces with twelve equivalent HgHg8Pd4 cuboctahedra. All Pd–Hg bond lengths are 3.09 Å. Hg is bonded to four equivalent Pd and eight equivalent Hg atoms to form HgHg8Pd4 cuboctahedra that share corners with twelve equivalent HgHg8Pd4 cuboctahedra, edges with eight equivalent PdHg12 cuboctahedra, edges with sixteen equivalent HgHg8Pd4 cuboctahedra, faces with four equivalent PdHg12 cuboctahedra, and faces with fourteen equivalent HgHg8Pd4 cuboctahedra. All Hg–Hg bond lengths are 3.09 Å.
Pd3Hg is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pd is bonded to eight equivalent Pd and four equivalent Hg atoms to form PdHg4Pd8 cuboctahedra that share corners with four equivalent HgPd12 cuboctahedra, corners with fourteen equivalent PdHg4Pd8 cuboctahedra, edges with six equivalent HgPd12 cuboctahedra, edges with twelve equivalent PdHg4Pd8 cuboctahedra, faces with four equivalent HgPd12 cuboctahedra, and faces with sixteen equivalent PdHg4Pd8 cuboctahedra. There are a spread of Pd–Pd bond distances ranging from 2.84–2.91 Å. There are two shorter (2.87 Å) and two longer (2.89 Å) Pd–Hg bond lengths. Hg is bonded to twelve equivalent Pd atoms to form HgPd12 cuboctahedra that share corners with six equivalent HgPd12 cuboctahedra, corners with twelve equivalent PdHg4Pd8 cuboctahedra, edges with eighteen equivalent PdHg4Pd8 cuboctahedra, faces with eight equivalent HgPd12 cuboctahedra, and faces with twelve equivalent PdHg4Pd8 cuboctahedra.
Pd3Hg is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Pd sites. In the first Pd site, Pd is bonded to eight Pd and four equivalent Hg atoms to form PdHg4Pd8 cuboctahedra that share corners with twelve equivalent PdHg4Pd8 cuboctahedra, edges with eight equivalent HgPd12 cuboctahedra, edges with sixteen PdHg4Pd8 cuboctahedra, faces with four equivalent HgPd12 cuboctahedra, and faces with fourteen PdHg4Pd8 cuboctahedra. There are four shorter (2.86 Å) and four longer (2.89 Å) Pd–Pd bond lengths. All Pd–Hg bond lengths are 2.86 Å. In the second Pd site, Pd is bonded to eight equivalent Pd and four equivalent Hg atoms to form PdHg4Pd8 cuboctahedra that share corners with four equivalent PdHg4Pd8 cuboctahedra, corners with eight equivalent HgPd12 cuboctahedra, edges with twenty-four PdHg4Pd8 cuboctahedra, faces with six equivalent HgPd12 cuboctahedra, and faces with twelve PdHg4Pd8 cuboctahedra. All Pd–Hg bond lengths are 2.89 Å. Hg is bonded to twelve Pd atoms to form HgPd12 cuboctahedra that share corners with four equivalent HgPd12 cuboctahedra, corners with eight equivalent PdHg4Pd8 cuboctahedra, edges with eight equivalent HgPd12 cuboctahedra, edges with sixteen equivalent PdHg4Pd8 cuboctahedra, faces with four equivalent HgPd12 cuboctahedra, and faces with fourteen PdHg4Pd8 cuboctahedra.
PdHg3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pd is bonded to twelve equivalent Hg atoms to form PdHg12 cuboctahedra that share corners with six equivalent PdHg12 cuboctahedra, corners with twelve equivalent HgHg8Pd4 cuboctahedra, edges with eighteen equivalent HgHg8Pd4 cuboctahedra, faces with eight equivalent PdHg12 cuboctahedra, and faces with twelve equivalent HgHg8Pd4 cuboctahedra. There are six shorter (2.97 Å) and six longer (3.23 Å) Pd–Hg bond lengths. Hg is bonded to four equivalent Pd and eight equivalent Hg atoms to form distorted HgHg8Pd4 cuboctahedra that share corners with four equivalent PdHg12 cuboctahedra, corners with fourteen equivalent HgHg8Pd4 cuboctahedra, edges with six equivalent PdHg12 cuboctahedra, edges with twelve equivalent HgHg8Pd4 cuboctahedra, faces with four equivalent PdHg12 cuboctahedra, and faces with sixteen equivalent HgHg8Pd4 cuboctahedra. There are a spread of Hg–Hg bond distances ranging from 2.93–3.25 Å.