The compound described by EuMgSi crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded to four equivalent Si(1) atoms to form a mixture of distorted edge and corner-sharing MgSi4 tetrahedra. Eu(1) is bonded in a 5-coordinate geometry to five equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to four equivalent Mg(1) and five equivalent Eu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuMgSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.505
_cell_length_b   7.596
_cell_length_c   8.372
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   286.454
_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
  Eu  Eu0  1  0.250  0.016  0.317  1.0
  Eu  Eu1  1  0.250  0.516  0.183  1.0
  Eu  Eu2  1  0.750  0.984  0.683  1.0
  Eu  Eu3  1  0.750  0.484  0.817  1.0
  Mg  Mg4  1  0.250  0.145  0.936  1.0
  Mg  Mg5  1  0.250  0.645  0.564  1.0
  Mg  Mg6  1  0.750  0.855  0.064  1.0
  Mg  Mg7  1  0.750  0.355  0.436  1.0
  Si  Si8  1  0.250  0.277  0.611  1.0
  Si  Si9  1  0.250  0.777  0.889  1.0
  Si  Si10  1  0.750  0.723  0.389  1.0
  Si  Si11  1  0.750  0.223  0.111  1.0
[/CIF]
.
The compound described by EuMgSi crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded to four equivalent Si(1) atoms to form a mixture of distorted edge and corner-sharing MgSi4 tetrahedra. Eu(1) is bonded in a 5-coordinate geometry to five equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to four equivalent Mg(1) and five equivalent Eu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuMgSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.505
_cell_length_b   7.596
_cell_length_c   8.372
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   286.454
_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
  Eu  Eu0  1  0.250  0.016  0.317  1.0
  Eu  Eu1  1  0.250  0.516  0.183  1.0
  Eu  Eu2  1  0.750  0.984  0.683  1.0
  Eu  Eu3  1  0.750  0.484  0.817  1.0
  Mg  Mg4  1  0.250  0.145  0.936  1.0
  Mg  Mg5  1  0.250  0.645  0.564  1.0
  Mg  Mg6  1  0.750  0.855  0.064  1.0
  Mg  Mg7  1  0.750  0.355  0.436  1.0
  Si  Si8  1  0.250  0.277  0.611  1.0
  Si  Si9  1  0.250  0.777  0.889  1.0
  Si  Si10  1  0.750  0.723  0.389  1.0
  Si  Si11  1  0.750  0.223  0.111  1.0
[/CIF]
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