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Hf2Hg crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two Hf2Hg sheets oriented in the (0, 0, 1) direction. Hf is bonded in a 8-coordinate geometry to four equivalent Hg atoms. All Hf–Hg bond lengths are 3.06 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.
Au2Hf crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Hf is bonded in a distorted q6 geometry to ten equivalent Au atoms. There are eight shorter (2.93 Å) and two longer (2.94 Å) Hf–Au bond lengths. Au is bonded in a 10-coordinate geometry to five equivalent Hf atoms.
Hf2TaN3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Hf is bonded to six equivalent N atoms to form a mixture of distorted face, edge, and corner-sharing HfN6 pentagonal pyramids. All Hf–N bond lengths are 2.16 Å. Ta is bonded in a hexagonal planar geometry to six equivalent N atoms. All Ta–N bond lengths are 2.67 Å. N is bonded to four equivalent Hf and two equivalent Ta atoms to form a mixture of face, edge, and corner-sharing NHf4Ta2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.
HfTa2N3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Hf is bonded in a hexagonal planar geometry to six equivalent N atoms. All Hf–N bond lengths are 2.63 Å. Ta is bonded to six equivalent N atoms to form a mixture of distorted face, edge, and corner-sharing TaN6 pentagonal pyramids. All Ta–N bond lengths are 2.13 Å. N is bonded to two equivalent Hf and four equivalent Ta atoms to form a mixture of face, edge, and corner-sharing NHf2Ta4 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.
HfVGe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Hf is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are four shorter (2.74 Å) and one longer (2.83 Å) Hf–Ge bond lengths. V is bonded in a 12-coordinate geometry to four equivalent Ge atoms. All V–Ge bond lengths are 2.59 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Hf and four equivalent V atoms.
Ce3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ce is bonded to eight equivalent Ce and four equivalent Hf atoms to form CeCe8Hf4 cuboctahedra that share corners with twelve equivalent CeCe8Hf4 cuboctahedra, edges with eight equivalent HfCe12 cuboctahedra, edges with sixteen equivalent CeCe8Hf4 cuboctahedra, faces with four equivalent HfCe12 cuboctahedra, and faces with fourteen equivalent CeCe8Hf4 cuboctahedra. All Ce–Ce bond lengths are 3.34 Å. All Ce–Hf bond lengths are 3.34 Å. Hf is bonded to twelve equivalent Ce atoms to form HfCe12 cuboctahedra that share corners with twelve equivalent HfCe12 cuboctahedra, edges with twenty-four equivalent CeCe8Hf4 cuboctahedra, faces with six equivalent HfCe12 cuboctahedra, and faces with twelve equivalent CeCe8Hf4 cuboctahedra.
MgHfCo2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two MgHfCo2 ribbons oriented in the (1, 0, 0) direction. Mg is bonded in a linear geometry to two equivalent Co atoms. Both Mg–Co bond lengths are 2.63 Å. Hf is bonded in a linear geometry to two equivalent Co atoms. Both Hf–Co bond lengths are 2.11 Å. Co is bonded in a linear geometry to one Mg and one Hf atom.
HfH3 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Hf is bonded to twelve equivalent H atoms to form a mixture of distorted face and corner-sharing HfH12 cuboctahedra. There are a spread of Hf–H bond distances ranging from 2.02–2.38 Å. H is bonded in a distorted see-saw-like geometry to four equivalent Hf atoms.
Mg3Hf is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a distorted body-centered cubic geometry to eight equivalent Mg atoms. All Mg–Mg bond lengths are 3.05 Å. In the second Mg site, Mg is bonded in a body-centered cubic geometry to four equivalent Mg and four equivalent Hf atoms. All Mg–Hf bond lengths are 3.05 Å. Hf is bonded in a distorted body-centered cubic geometry to eight equivalent Mg atoms.
HfNbRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Hf–Ru bond lengths are 2.78 Å. Nb is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Nb–Ru bond lengths are 2.78 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Hf and four equivalent Nb atoms.
ThHfO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Th is bonded to twelve equivalent O atoms to form ThO12 cuboctahedra that share corners with twelve equivalent ThO12 cuboctahedra, faces with six equivalent ThO12 cuboctahedra, and faces with eight equivalent HfO6 octahedra. All Th–O bond lengths are 2.91 Å. Hf is bonded to six equivalent O atoms to form HfO6 octahedra that share corners with six equivalent HfO6 octahedra and faces with eight equivalent ThO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Hf–O bond lengths are 2.06 Å. O is bonded in a distorted linear geometry to four equivalent Th and two equivalent Hf atoms.
HfZrFe2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Hf–Fe bond lengths are 2.74 Å. Zr is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Zr–Fe bond lengths are 2.74 Å. Fe is bonded in a body-centered cubic geometry to four equivalent Hf and four equivalent Zr atoms.
(HfSi)2CuSi crystallizes in the tetragonal P4/mmm space group. The structure is zero-dimensional and consists of one copper molecule, one silicon molecule, and two HfSi clusters. In each HfSi cluster, Hf is bonded in a single-bond geometry to one Si atom. The Hf–Si bond length is 2.31 Å. Si is bonded in a single-bond geometry to one Hf atom.
HfRh2Zn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two HfRh2Zn ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to two equivalent Rh atoms. Both Hf–Rh bond lengths are 2.22 Å. Rh is bonded in a linear geometry to one Hf and one Zn atom. The Rh–Zn bond length is 2.53 Å. Zn is bonded in a linear geometry to two equivalent Rh atoms.
PrHfO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pr is bonded to twelve equivalent O atoms to form PrO12 cuboctahedra that share corners with twelve equivalent PrO12 cuboctahedra, faces with six equivalent PrO12 cuboctahedra, and faces with eight equivalent HfO6 octahedra. All Pr–O bond lengths are 2.92 Å. Hf is bonded to six equivalent O atoms to form HfO6 octahedra that share corners with six equivalent HfO6 octahedra and faces with eight equivalent PrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Hf–O bond lengths are 2.06 Å. O is bonded in a distorted linear geometry to four equivalent Pr and two equivalent Hf atoms.
ScHfTl2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ScHfTl2 ribbons oriented in the (1, 0, 0) direction. Sc is bonded in a linear geometry to two equivalent Tl atoms. Both Sc–Tl bond lengths are 2.88 Å. Hf is bonded in a linear geometry to two equivalent Tl atoms. Both Hf–Tl bond lengths are 2.83 Å. Tl is bonded in a linear geometry to one Sc and one Hf atom.
HfZrOs2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Hf–Os bond lengths are 2.84 Å. Zr is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Zr–Os bond lengths are 2.84 Å. Os is bonded in a body-centered cubic geometry to four equivalent Hf and four equivalent Zr atoms.
HfVAu2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two HfVAu2 ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to two equivalent Au atoms. Both Hf–Au bond lengths are 2.62 Å. V is bonded in a linear geometry to two equivalent Au atoms. Both V–Au bond lengths are 2.64 Å. Au is bonded in a linear geometry to one Hf and one V atom.