The material structure described by ErAlSi crystallizes in the orthorhombic Cmcm space group. Er(1) is bonded in a 9-coordinate geometry to four equivalent Al(1) and five equivalent Si(1) atoms. Al(1) is bonded in a 4-coordinate geometry to four equivalent Er(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErAlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.464
_cell_length_b   5.464
_cell_length_c   5.644
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.548
_symmetry_Int_Tables_number   1
_cell_volume   113.733
_cell_formula_units_Z   2
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  0.695  0.305  0.250  1.0
  Er  Er1  1  0.305  0.695  0.750  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Al  Al3  1  0.000  0.000  0.500  1.0
  Si  Si4  1  0.400  0.600  0.250  1.0
  Si  Si5  1  0.600  0.400  0.750  1.0
[/CIF]
.
The material structure described by ErAlSi crystallizes in the orthorhombic Cmcm space group. Er(1) is bonded in a 9-coordinate geometry to four equivalent Al(1) and five equivalent Si(1) atoms. Al(1) is bonded in a 4-coordinate geometry to four equivalent Er(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErAlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.464
_cell_length_b   5.464
_cell_length_c   5.644
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.548
_symmetry_Int_Tables_number   1
_cell_volume   113.733
_cell_formula_units_Z   2
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  0.695  0.305  0.250  1.0
  Er  Er1  1  0.305  0.695  0.750  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Al  Al3  1  0.000  0.000  0.500  1.0
  Si  Si4  1  0.400  0.600  0.250  1.0
  Si  Si5  1  0.600  0.400  0.750  1.0
[/CIF]
.