The material structure described by ErMoC2 crystallizes in the orthorhombic Pnma space group. Er(1) is bonded to three equivalent C(2) and four equivalent C(1) atoms to form distorted ErC7 pentagonal bipyramids that share corners with four equivalent Er(1)C7 pentagonal bipyramids, corners with three equivalent Mo(1)C5 trigonal bipyramids, edges with four equivalent Er(1)C7 pentagonal bipyramids, edges with seven equivalent Mo(1)C5 trigonal bipyramids, and faces with two equivalent Er(1)C7 pentagonal bipyramids. Mo(1) is bonded to two equivalent C(1) and three equivalent C(2) atoms to form MoC5 trigonal bipyramids that share corners with three equivalent Er(1)C7 pentagonal bipyramids, corners with four equivalent Mo(1)C5 trigonal bipyramids, edges with seven equivalent Er(1)C7 pentagonal bipyramids, and edges with two equivalent Mo(1)C5 trigonal bipyramids. There are two inequivalent C sites. In the first C site, C(1) is bonded to four equivalent Er(1) and two equivalent Mo(1) atoms to form CEr4Mo2 octahedra that share corners with four equivalent C(1)Er4Mo2 octahedra, corners with nine equivalent C(2)Er3Mo3 octahedra, edges with two equivalent C(1)Er4Mo2 octahedra, edges with three equivalent C(2)Er3Mo3 octahedra,  a faceface with one C(2)Er3Mo3 octahedra, and faces with two equivalent C(1)Er4Mo2 octahedra. The corner-sharing octahedral tilt angles range from 12-60°. In the second C site, C(2) is bonded to three equivalent Er(1) and three equivalent Mo(1) atoms to form CEr3Mo3 octahedra that share corners with nine equivalent C(1)Er4Mo2 octahedra, edges with three equivalent C(1)Er4Mo2 octahedra, edges with six equivalent C(2)Er3Mo3 octahedra, and  a faceface with one C(1)Er4Mo2 octahedra. The corner-sharing octahedral tilt angles range from 12-60°. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErMoC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.363
_cell_length_b   5.677
_cell_length_c   10.762
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.501
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Er  Er0  1  0.250  0.085  0.863  1.0
  Er  Er1  1  0.250  0.585  0.637  1.0
  Er  Er2  1  0.750  0.915  0.137  1.0
  Er  Er3  1  0.750  0.415  0.363  1.0
  Mo  Mo4  1  0.250  0.401  0.109  1.0
  Mo  Mo5  1  0.250  0.901  0.391  1.0
  Mo  Mo6  1  0.750  0.599  0.891  1.0
  Mo  Mo7  1  0.750  0.099  0.609  1.0
  C  C8  1  0.250  0.159  0.247  1.0
  C  C9  1  0.250  0.659  0.253  1.0
  C  C10  1  0.750  0.841  0.753  1.0
  C  C11  1  0.750  0.341  0.747  1.0
  C  C12  1  0.250  0.728  0.987  1.0
  C  C13  1  0.250  0.228  0.513  1.0
  C  C14  1  0.750  0.272  0.013  1.0
  C  C15  1  0.750  0.772  0.487  1.0
[/CIF]
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The material structure described by ErMoC2 crystallizes in the orthorhombic Pnma space group. Er(1) is bonded to three equivalent C(2) and four equivalent C(1) atoms to form distorted ErC7 pentagonal bipyramids that share corners with four equivalent Er(1)C7 pentagonal bipyramids, corners with three equivalent Mo(1)C5 trigonal bipyramids, edges with four equivalent Er(1)C7 pentagonal bipyramids, edges with seven equivalent Mo(1)C5 trigonal bipyramids, and faces with two equivalent Er(1)C7 pentagonal bipyramids. Mo(1) is bonded to two equivalent C(1) and three equivalent C(2) atoms to form MoC5 trigonal bipyramids that share corners with three equivalent Er(1)C7 pentagonal bipyramids, corners with four equivalent Mo(1)C5 trigonal bipyramids, edges with seven equivalent Er(1)C7 pentagonal bipyramids, and edges with two equivalent Mo(1)C5 trigonal bipyramids. There are two inequivalent C sites. In the first C site, C(1) is bonded to four equivalent Er(1) and two equivalent Mo(1) atoms to form CEr4Mo2 octahedra that share corners with four equivalent C(1)Er4Mo2 octahedra, corners with nine equivalent C(2)Er3Mo3 octahedra, edges with two equivalent C(1)Er4Mo2 octahedra, edges with three equivalent C(2)Er3Mo3 octahedra,  a faceface with one C(2)Er3Mo3 octahedra, and faces with two equivalent C(1)Er4Mo2 octahedra. The corner-sharing octahedral tilt angles range from 12-60°. In the second C site, C(2) is bonded to three equivalent Er(1) and three equivalent Mo(1) atoms to form CEr3Mo3 octahedra that share corners with nine equivalent C(1)Er4Mo2 octahedra, edges with three equivalent C(1)Er4Mo2 octahedra, edges with six equivalent C(2)Er3Mo3 octahedra, and  a faceface with one C(1)Er4Mo2 octahedra. The corner-sharing octahedral tilt angles range from 12-60°. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErMoC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.363
_cell_length_b   5.677
_cell_length_c   10.762
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.501
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Er  Er0  1  0.250  0.085  0.863  1.0
  Er  Er1  1  0.250  0.585  0.637  1.0
  Er  Er2  1  0.750  0.915  0.137  1.0
  Er  Er3  1  0.750  0.415  0.363  1.0
  Mo  Mo4  1  0.250  0.401  0.109  1.0
  Mo  Mo5  1  0.250  0.901  0.391  1.0
  Mo  Mo6  1  0.750  0.599  0.891  1.0
  Mo  Mo7  1  0.750  0.099  0.609  1.0
  C  C8  1  0.250  0.159  0.247  1.0
  C  C9  1  0.250  0.659  0.253  1.0
  C  C10  1  0.750  0.841  0.753  1.0
  C  C11  1  0.750  0.341  0.747  1.0
  C  C12  1  0.250  0.728  0.987  1.0
  C  C13  1  0.250  0.228  0.513  1.0
  C  C14  1  0.750  0.272  0.013  1.0
  C  C15  1  0.750  0.772  0.487  1.0
[/CIF]
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