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ErCu is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded in a body-centered cubic geometry to eight equivalent Cu atoms. All Er–Cu bond lengths are 2.97 Å. Cu is bonded in a body-centered cubic geometry to eight equivalent Er atoms.
ErMnGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are a spread of Er–Ge bond distances ranging from 2.93–2.96 Å. Mn is bonded in a 4-coordinate geometry to four equivalent Ge atoms. There are a spread of Mn–Ge bond distances ranging from 2.55–2.76 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Er and four equivalent Mn atoms.
Er3PbC is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional and consists of one methane molecule and one Er3Pb framework. In the Er3Pb framework, Er is bonded in a linear geometry to two equivalent Pb atoms. Both Er–Pb bond lengths are 2.81 Å. Pb is bonded to six equivalent Er atoms to form corner-sharing PbEr6 octahedra. The corner-sharing octahedral tilt angles are 0°.
ErTiSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Er is bonded in a 5-coordinate geometry to five equivalent Si atoms. There are four shorter (2.94 Å) and one longer (3.12 Å) Er–Si bond lengths. Ti is bonded to four equivalent Si atoms to form a mixture of distorted corner and edge-sharing TiSi4 cuboctahedra. All Ti–Si bond lengths are 2.70 Å. Si is bonded in a 9-coordinate geometry to five equivalent Er and four equivalent Ti atoms.
Er3TlC is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional and consists of one methane molecule and one Er3Tl framework. In the Er3Tl framework, Er is bonded in a linear geometry to two equivalent Tl atoms. Both Er–Tl bond lengths are 2.78 Å. Tl is bonded to six equivalent Er atoms to form corner-sharing TlEr6 octahedra. The corner-sharing octahedral tilt angles are 0°.
Al3Er is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded to twelve equivalent Al atoms to form ErAl12 cuboctahedra that share corners with twelve equivalent ErAl12 cuboctahedra, edges with twenty-four equivalent AlEr4Al8 cuboctahedra, faces with six equivalent ErAl12 cuboctahedra, and faces with twelve equivalent AlEr4Al8 cuboctahedra. All Er–Al bond lengths are 2.99 Å. Al is bonded to four equivalent Er and eight equivalent Al atoms to form distorted AlEr4Al8 cuboctahedra that share corners with twelve equivalent AlEr4Al8 cuboctahedra, edges with eight equivalent ErAl12 cuboctahedra, edges with sixteen equivalent AlEr4Al8 cuboctahedra, faces with four equivalent ErAl12 cuboctahedra, and faces with fourteen equivalent AlEr4Al8 cuboctahedra. All Al–Al bond lengths are 2.99 Å.
ErSi2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Er is bonded to twelve equivalent Si atoms to form a mixture of edge and face-sharing ErSi12 cuboctahedra. All Er–Si bond lengths are 3.06 Å. Si is bonded in a 9-coordinate geometry to six equivalent Er and three equivalent Si atoms. All Si–Si bond lengths are 2.36 Å.
ErTl is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded in a body-centered cubic geometry to eight equivalent Tl atoms. All Er–Tl bond lengths are 3.27 Å. Tl is bonded in a body-centered cubic geometry to eight equivalent Er atoms.
MgEr 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 Er atoms. All Mg–Er bond lengths are 3.26 Å. Er is bonded in a body-centered cubic geometry to eight equivalent Mg atoms.
Er3SnC is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional and consists of one methane molecule and one Er3Sn framework. In the Er3Sn framework, Er is bonded in a linear geometry to two equivalent Sn atoms. Both Er–Sn bond lengths are 2.78 Å. Sn is bonded to six equivalent Er atoms to form corner-sharing SnEr6 octahedra. The corner-sharing octahedral tilt angles are 0°.
ErGe crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Er is bonded in a 5-coordinate geometry to seven equivalent Ge atoms. There are a spread of Er–Ge bond distances ranging from 2.93–3.20 Å. Ge is bonded in a 5-coordinate geometry to seven equivalent Er and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.70 Å.
ErBi is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Er is bonded to six equivalent Bi atoms to form a mixture of edge and corner-sharing ErBi6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Er–Bi bond lengths are 3.15 Å. Bi is bonded to six equivalent Er atoms to form a mixture of edge and corner-sharing BiEr6 octahedra. The corner-sharing octahedral tilt angles are 0°.
ErRh is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. All Er–Rh bond lengths are 2.94 Å. Rh is bonded in a body-centered cubic geometry to eight equivalent Er atoms.
ErH2 is Fluorite structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Er is bonded in a body-centered cubic geometry to eight equivalent H atoms. All Er–H bond lengths are 2.22 Å. H is bonded to four equivalent Er atoms to form a mixture of edge and corner-sharing HEr4 tetrahedra.
ErGa2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Er is bonded to twelve equivalent Ga atoms to form a mixture of edge and face-sharing ErGa12 cuboctahedra. All Er–Ga bond lengths are 3.16 Å. Ga is bonded in a 9-coordinate geometry to six equivalent Er and three equivalent Ga atoms. All Ga–Ga bond lengths are 2.42 Å.
ErTl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded to twelve equivalent Tl atoms to form ErTl12 cuboctahedra that share corners with twelve equivalent ErTl12 cuboctahedra, edges with twenty-four equivalent TlEr4Tl8 cuboctahedra, faces with six equivalent ErTl12 cuboctahedra, and faces with twelve equivalent TlEr4Tl8 cuboctahedra. All Er–Tl bond lengths are 3.37 Å. Tl is bonded to four equivalent Er and eight equivalent Tl atoms to form TlEr4Tl8 cuboctahedra that share corners with twelve equivalent TlEr4Tl8 cuboctahedra, edges with eight equivalent ErTl12 cuboctahedra, edges with sixteen equivalent TlEr4Tl8 cuboctahedra, faces with four equivalent ErTl12 cuboctahedra, and faces with fourteen equivalent TlEr4Tl8 cuboctahedra. All Tl–Tl bond lengths are 3.37 Å.
ErAu is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Er–Au bond lengths are 3.10 Å. Au is bonded in a body-centered cubic geometry to eight equivalent Er atoms.
Er2O3 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing ErO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Er–O bond distances ranging from 2.18–2.45 Å. In the second Er3+ site, Er3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Er–O bond distances ranging from 2.22–2.72 Å. In the third Er3+ site, Er3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Er–O bond distances ranging from 2.22–2.55 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to four Er3+ atoms to form distorted OEr4 trigonal pyramids that share a cornercorner with one OEr6 octahedra, corners with two equivalent OEr5 square pyramids, corners with nine OEr4 tetrahedra, corners with two equivalent OEr4 trigonal pyramids, edges with three equivalent OEr5 square pyramids, and edges with two equivalent OEr4 trigonal pyramids. The corner-sharing octahedral tilt angles are 37°. In the second O2- site, O2- is bonded to four Er3+ atoms to form distorted OEr4 tetrahedra that share corners with two equivalent OEr6 octahedra, corners with two equivalent OEr5 square pyramids, corners with four OEr4 tetrahedra, corners with six equivalent OEr4 trigonal pyramids, an edgeedge with one OEr6 octahedra, edges with two equivalent OEr5 square pyramids, and an edgeedge with one OEr4 tetrahedra. The corner-sharing octahedral tilt angles are 13°. In the third O2- site, O2- is bonded to four Er3+ atoms to form OEr4 tetrahedra that share a cornercorner with one OEr6 octahedra, corners with five equivalent OEr5 square pyramids, corners with four OEr4 tetrahedra, corners with three equivalent OEr4 trigonal pyramids, edges with two equivalent OEr6 octahedra, an edgeedge with one OEr5 square pyramid, and edges with two equivalent OEr4 tetrahedra. The corner-sharing octahedral tilt angles are 49°. In the fourth O2- site, O2- is bonded to six Er3+ atoms to form OEr6 octahedra that share corners with six OEr4 tetrahedra, corners with two equivalent OEr4 trigonal pyramids, edges with two equivalent OEr6 octahedra, edges with four equivalent OEr5 square pyramids, and edges with six OEr4 tetrahedra. In the fifth O2- site, O2- is bonded to five Er3+ atoms to form distorted OEr5 square pyramids that share corners with seven OEr4 tetrahedra, corners with two equivalent OEr4 trigonal pyramids, edges with two equivalent OEr6 octahedra, edges with two equivalent OEr5 square pyramids, edges with three OEr4 tetrahedra, and edges with three equivalent OEr4 trigonal pyramids.