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MgHg2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Mg is bonded in a distorted q6 geometry to ten equivalent Hg atoms. There are two shorter (2.99 Å) and eight longer (3.14 Å) Mg–Hg bond lengths. Hg is bonded in a 10-coordinate geometry to five equivalent Mg and five equivalent Hg atoms. There are one shorter (2.99 Å) and four longer (3.15 Å) Hg–Hg bond lengths.
Mg5Hg3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 5-coordinate geometry to five equivalent Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.85–3.14 Å. In the second Mg site, Mg is bonded in a 6-coordinate geometry to six equivalent Hg atoms. All Mg–Hg bond lengths are 2.98 Å. Hg is bonded in a 9-coordinate geometry to nine Mg atoms.
MgHg is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Mg is bonded in a body-centered cubic geometry to eight equivalent Hg atoms. All Mg–Hg bond lengths are 3.03 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Mg atoms.
Mg2Hg is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 5-coordinate geometry to five equivalent Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.97–3.16 Å. In the second Mg site, Mg is bonded in a 4-coordinate geometry to five equivalent Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.91–3.35 Å. Hg is bonded in a 10-coordinate geometry to ten Mg atoms.
Mg3Hg crystallizes in the trigonal R32 space group. The structure is three-dimensional. there are five inequivalent Mg sites. In the first Mg site, Mg is bonded in a 3-coordinate geometry to three Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.83–3.12 Å. In the second Mg site, Mg is bonded in a distorted trigonal non-coplanar geometry to three equivalent Hg atoms. All Mg–Hg bond lengths are 2.95 Å. In the third Mg site, Mg is bonded in a 3-coordinate geometry to three Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.90–3.09 Å. In the fourth Mg site, Mg is bonded in a 3-coordinate geometry to three equivalent Hg atoms. All Mg–Hg bond lengths are 3.06 Å. In the fifth Mg site, Mg is bonded in a trigonal planar geometry to three equivalent Hg atoms. All Mg–Hg bond lengths are 2.83 Å. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a distorted q6 geometry to ten Mg atoms. In the second Hg site, Hg is bonded in a 8-coordinate geometry to eight Mg atoms.
Mg3Hg is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 1-coordinate geometry to four equivalent Hg atoms. There are one shorter (2.84 Å) and three longer (3.19 Å) Mg–Hg bond lengths. In the second Mg site, Mg is bonded in a trigonal planar geometry to three equivalent Hg atoms. All Mg–Hg bond lengths are 2.83 Å. Hg is bonded in a 5-coordinate geometry to eleven Mg atoms.
MgHg5 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Mg is bonded in a distorted q6 geometry to ten Hg atoms. There are a spread of Mg–Hg bond distances ranging from 3.18–3.25 Å. There are five inequivalent Hg sites. In the first Hg site, Hg is bonded in a 4-coordinate geometry to four equivalent Mg atoms. In the second Hg site, Hg is bonded in a distorted water-like geometry to two equivalent Mg and two equivalent Hg atoms. Both Hg–Hg bond lengths are 3.32 Å. In the third Hg site, Hg is bonded in a 8-coordinate geometry to eight Hg atoms. There are two shorter (3.25 Å) and four longer (3.28 Å) Hg–Hg bond lengths. In the fourth Hg site, Hg is bonded in a 8-coordinate geometry to two equivalent Mg and four equivalent Hg atoms. In the fifth Hg site, Hg is bonded in a 8-coordinate geometry to two equivalent Mg and two equivalent Hg atoms.
Mg5Hg crystallizes in the trigonal R32 space group. The structure is three-dimensional. there are nine inequivalent Mg sites. In the first Mg site, Mg is bonded to ten Mg and two equivalent Hg atoms to form distorted MgMg10Hg2 cuboctahedra that share corners with eighteen MgMg10Hg2 cuboctahedra, edges with four equivalent HgMg12 cuboctahedra, edges with fourteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.14–3.18 Å. Both Mg–Hg bond lengths are 3.15 Å. In the second Mg site, Mg is bonded to ten Mg and two equivalent Hg atoms to form distorted MgMg10Hg2 cuboctahedra that share corners with eighteen MgMg10Hg2 cuboctahedra, edges with four equivalent HgMg12 cuboctahedra, edges with fourteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.14–3.18 Å. Both Mg–Hg bond lengths are 3.15 Å. In the third Mg site, Mg is bonded to ten Mg and two equivalent Hg atoms to form distorted MgMg10Hg2 cuboctahedra that share corners with eighteen MgMg10Hg2 cuboctahedra, edges with four equivalent HgMg12 cuboctahedra, edges with fourteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. There are two shorter (3.14 Å) and two longer (3.16 Å) Mg–Mg bond lengths. Both Mg–Hg bond lengths are 3.15 Å. In the fourth Mg site, Mg is bonded to nine Mg and three equivalent Hg atoms to form distorted MgMg9Hg3 cuboctahedra that share corners with six equivalent HgMg12 cuboctahedra, corners with twelve MgMg9Hg3 cuboctahedra, edges with eighteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. All Mg–Mg bond lengths are 3.16 Å. All Mg–Hg bond lengths are 3.16 Å. In the fifth Mg site, Mg is bonded to nine Mg and three equivalent Hg atoms to form distorted MgMg9Hg3 cuboctahedra that share corners with six equivalent HgMg12 cuboctahedra, corners with twelve MgMg9Hg3 cuboctahedra, edges with eighteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. All Mg–Hg bond lengths are 3.16 Å. In the sixth Mg site, Mg is bonded to ten Mg and two equivalent Hg atoms to form distorted MgMg10Hg2 cuboctahedra that share corners with eighteen MgMg10Hg2 cuboctahedra, edges with four equivalent HgMg12 cuboctahedra, edges with fourteen MgMg9Hg3 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.14–3.18 Å. Both Mg–Hg bond lengths are 3.15 Å. In the seventh Mg site, Mg is bonded to nine Mg and three equivalent Hg atoms to form distorted MgMg9Hg3 cuboctahedra that share corners with six equivalent HgMg12 cuboctahedra, corners with twelve MgMg9Hg3 cuboctahedra, edges with eighteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. All Mg–Mg bond lengths are 3.16 Å. All Mg–Hg bond lengths are 3.16 Å. In the eighth Mg site, Mg is bonded to nine Mg and three equivalent Hg atoms to form distorted MgMg9Hg3 cuboctahedra that share corners with six equivalent HgMg12 cuboctahedra, corners with twelve MgMg9Hg3 cuboctahedra, edges with eighteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. All Mg–Hg bond lengths are 3.16 Å. In the ninth Mg site, Mg is bonded to nine Mg and three equivalent Hg atoms to form distorted MgMg9Hg3 cuboctahedra that share corners with six equivalent HgMg12 cuboctahedra, corners with twelve MgMg9Hg3 cuboctahedra, edges with eighteen MgMg10Hg2 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with sixteen MgMg10Hg2 cuboctahedra. There are three shorter (3.14 Å) and five longer (3.16 Å) Mg–Mg bond lengths. All Mg–Hg bond lengths are 3.16 Å. Hg is bonded to twelve Mg atoms to form HgMg12 cuboctahedra that share corners with six equivalent HgMg12 cuboctahedra, corners with twelve MgMg9Hg3 cuboctahedra, edges with six equivalent HgMg12 cuboctahedra, edges with twelve MgMg10Hg2 cuboctahedra, and faces with twenty MgMg10Hg2 cuboctahedra.
Mg3Hg is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Mg is bonded to eight equivalent Mg and four equivalent Hg atoms to form distorted MgMg8Hg4 cuboctahedra that share corners with twelve equivalent MgMg8Hg4 cuboctahedra, edges with eight equivalent HgMg12 cuboctahedra, edges with sixteen equivalent MgMg8Hg4 cuboctahedra, faces with four equivalent HgMg12 cuboctahedra, and faces with fourteen equivalent MgMg8Hg4 cuboctahedra. All Mg–Mg bond lengths are 3.12 Å. All Mg–Hg bond lengths are 3.12 Å. Hg is bonded to twelve equivalent Mg atoms to form HgMg12 cuboctahedra that share corners with twelve equivalent HgMg12 cuboctahedra, edges with twenty-four equivalent MgMg8Hg4 cuboctahedra, faces with six equivalent HgMg12 cuboctahedra, and faces with twelve equivalent MgMg8Hg4 cuboctahedra.
MgHg5 crystallizes in the trigonal R32 space group. The structure is three-dimensional. Mg is bonded to twelve Hg atoms to form a mixture of corner and edge-sharing MgHg12 cuboctahedra. There are six shorter (3.24 Å) and six longer (3.35 Å) Mg–Hg bond lengths. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 2-coordinate geometry to two equivalent Mg atoms. In the second Hg site, Hg is bonded in a distorted trigonal planar geometry to three equivalent Mg atoms.
MgHg3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Mg is bonded to twelve Hg atoms to form a mixture of edge, face, and corner-sharing MgHg12 cuboctahedra. There are four shorter (3.13 Å) and eight longer (3.31 Å) Mg–Hg bond lengths. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a square co-planar geometry to four equivalent Mg and eight equivalent Hg atoms. All Hg–Hg bond lengths are 3.31 Å. In the second Hg site, Hg is bonded in a 12-coordinate geometry to four equivalent Mg and eight Hg atoms. All Hg–Hg bond lengths are 3.13 Å.
MgHg2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one MgHg2 sheet oriented in the (0, 0, 1) direction. Mg is bonded in a 7-coordinate geometry to seven Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.93–3.15 Å. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 3-coordinate geometry to three equivalent Mg atoms. In the second Hg site, Hg is bonded in a 9-coordinate geometry to four equivalent Mg atoms.
Mg5Hg crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are five inequivalent Mg sites. In the first Mg site, Mg is bonded to ten Mg and two equivalent Hg atoms to form distorted MgMg10Hg2 cuboctahedra that share corners with fourteen MgMg10Hg2 cuboctahedra, edges with five MgMg4Hg2 cuboctahedra, and faces with six MgMg10Hg2 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.02–3.27 Å. Both Mg–Hg bond lengths are 3.20 Å. In the second Mg site, Mg is bonded in a distorted single-bond geometry to four Mg and one Hg atom. Both Mg–Mg bond lengths are 3.16 Å. The Mg–Hg bond length is 3.09 Å. In the third Mg site, Mg is bonded to four Mg and two equivalent Hg atoms to form distorted MgMg4Hg2 cuboctahedra that share corners with fourteen MgMg10Hg2 cuboctahedra, edges with four MgMg10Hg2 cuboctahedra, and faces with two equivalent MgMg4Hg2 cuboctahedra. Both Mg–Mg bond lengths are 3.13 Å. Both Mg–Hg bond lengths are 3.10 Å. In the fourth Mg site, Mg is bonded to nine Mg and three equivalent Hg atoms to form distorted MgMg9Hg3 cuboctahedra that share corners with twelve MgMg4Hg2 cuboctahedra, edges with seven MgMg10Hg2 cuboctahedra, and faces with six MgMg10Hg2 cuboctahedra. There are two shorter (3.20 Å) and two longer (3.27 Å) Mg–Mg bond lengths. There are two shorter (3.11 Å) and one longer (3.21 Å) Mg–Hg bond lengths. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to five Mg and two equivalent Hg atoms. Both Mg–Hg bond lengths are 3.06 Å. Hg is bonded in a 12-coordinate geometry to ten Mg atoms.
MgHg2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of two MgHg2 sheets oriented in the (1, 0, 0) direction. Mg is bonded in a 8-coordinate geometry to eight Hg atoms. There are a spread of Mg–Hg bond distances ranging from 2.99–3.16 Å. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 4-coordinate geometry to four equivalent Mg atoms. In the second Hg site, Hg is bonded in a 4-coordinate geometry to four equivalent Mg atoms.
MgHg3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Mg is bonded to twelve equivalent Hg atoms to form a mixture of corner and face-sharing MgHg12 cuboctahedra. All Mg–Hg bond lengths are 3.25 Å. Hg is bonded in a distorted square co-planar geometry to four equivalent Mg atoms.
MgHg5 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 12-coordinate geometry to twelve Hg atoms. There are six shorter (3.07 Å) and six longer (3.51 Å) Mg–Hg bond lengths. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a distorted water-like geometry to two equivalent Mg and four equivalent Hg atoms. All Hg–Hg bond lengths are 3.21 Å. In the second Hg site, Hg is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Hg atoms.
MgHg3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Mg is bonded to eleven Hg atoms to form a mixture of distorted edge and face-sharing MgHg11 trigonal bipyramids. There are a spread of Mg–Hg bond distances ranging from 2.93–3.34 Å. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a distorted single-bond geometry to four equivalent Mg atoms. In the second Hg site, Hg is bonded in a trigonal planar geometry to three equivalent Mg atoms.
MgHg2 is Titanium Disilicide structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Mg is bonded in a distorted q6 geometry to ten equivalent Hg atoms. There are a spread of Mg–Hg bond distances ranging from 3.06–3.25 Å. Hg is bonded in a 5-coordinate geometry to five equivalent Mg atoms.