The material structure described by Er2Co3Al crystallizes in the trigonal R-3m space group. Er(1) is bonded in a 16-coordinate geometry to four equivalent Er(1), nine equivalent Co(1), and three equivalent Al(1) atoms. Co(1) is bonded to six equivalent Er(1), four equivalent Co(1), and two equivalent Al(1) atoms to form distorted CoEr6Al2Co4 cuboctahedra that share corners with four equivalent Al(1)Er6Co6 cuboctahedra, corners with fourteen equivalent Co(1)Er6Al2Co4 cuboctahedra, edges with six equivalent Co(1)Er6Al2Co4 cuboctahedra, faces with six equivalent Al(1)Er6Co6 cuboctahedra, and faces with twelve equivalent Co(1)Er6Al2Co4 cuboctahedra. Al(1) is bonded to six equivalent Er(1) and six equivalent Co(1) atoms to form distorted AlEr6Co6 cuboctahedra that share corners with six equivalent Al(1)Er6Co6 cuboctahedra, corners with twelve equivalent Co(1)Er6Al2Co4 cuboctahedra, edges with six equivalent Al(1)Er6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Er6Al2Co4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er2AlCo3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.876
_cell_length_b   4.876
_cell_length_c   4.876
_cell_angle_alpha   65.416
_cell_angle_beta   65.416
_cell_angle_gamma   65.416
_symmetry_Int_Tables_number   1
_cell_volume   91.644
_cell_formula_units_Z   1
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  0.629  0.629  0.629  1.0
  Er  Er1  1  0.371  0.371  0.371  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Co  Co3  1  0.000  0.500  0.000  1.0
  Co  Co4  1  0.500  0.000  0.000  1.0
  Co  Co5  1  0.000  0.000  0.500  1.0
[/CIF]
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The material structure described by Er2Co3Al crystallizes in the trigonal R-3m space group. Er(1) is bonded in a 16-coordinate geometry to four equivalent Er(1), nine equivalent Co(1), and three equivalent Al(1) atoms. Co(1) is bonded to six equivalent Er(1), four equivalent Co(1), and two equivalent Al(1) atoms to form distorted CoEr6Al2Co4 cuboctahedra that share corners with four equivalent Al(1)Er6Co6 cuboctahedra, corners with fourteen equivalent Co(1)Er6Al2Co4 cuboctahedra, edges with six equivalent Co(1)Er6Al2Co4 cuboctahedra, faces with six equivalent Al(1)Er6Co6 cuboctahedra, and faces with twelve equivalent Co(1)Er6Al2Co4 cuboctahedra. Al(1) is bonded to six equivalent Er(1) and six equivalent Co(1) atoms to form distorted AlEr6Co6 cuboctahedra that share corners with six equivalent Al(1)Er6Co6 cuboctahedra, corners with twelve equivalent Co(1)Er6Al2Co4 cuboctahedra, edges with six equivalent Al(1)Er6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Er6Al2Co4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er2AlCo3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.876
_cell_length_b   4.876
_cell_length_c   4.876
_cell_angle_alpha   65.416
_cell_angle_beta   65.416
_cell_angle_gamma   65.416
_symmetry_Int_Tables_number   1
_cell_volume   91.644
_cell_formula_units_Z   1
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  0.629  0.629  0.629  1.0
  Er  Er1  1  0.371  0.371  0.371  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Co  Co3  1  0.000  0.500  0.000  1.0
  Co  Co4  1  0.500  0.000  0.000  1.0
  Co  Co5  1  0.000  0.000  0.500  1.0
[/CIF]
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