The structure described by Sm(CrSi)2 crystallizes in the tetragonal I4/mmm space group. Sm(1) is bonded in a 8-coordinate geometry to eight equivalent Si(1) atoms. Cr(1) is bonded to four equivalent Si(1) atoms to form a mixture of corner and edge-sharing CrSi4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Sm(1), four equivalent Cr(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm(CrSi)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.046
_cell_length_b   6.046
_cell_length_c   6.046
_cell_angle_alpha   142.374
_cell_angle_beta   142.374
_cell_angle_gamma   54.265
_symmetry_Int_Tables_number   1
_cell_volume   81.806
_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
  Sm  Sm0  1  0.000  0.000  0.000  1.0
  Cr  Cr1  1  0.750  0.250  0.500  1.0
  Cr  Cr2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.382  0.382  0.000  1.0
  Si  Si4  1  0.618  0.618  0.000  1.0
[/CIF]
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The structure described by Sm(CrSi)2 crystallizes in the tetragonal I4/mmm space group. Sm(1) is bonded in a 8-coordinate geometry to eight equivalent Si(1) atoms. Cr(1) is bonded to four equivalent Si(1) atoms to form a mixture of corner and edge-sharing CrSi4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Sm(1), four equivalent Cr(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm(CrSi)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.046
_cell_length_b   6.046
_cell_length_c   6.046
_cell_angle_alpha   142.374
_cell_angle_beta   142.374
_cell_angle_gamma   54.265
_symmetry_Int_Tables_number   1
_cell_volume   81.806
_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
  Sm  Sm0  1  0.000  0.000  0.000  1.0
  Cr  Cr1  1  0.750  0.250  0.500  1.0
  Cr  Cr2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.382  0.382  0.000  1.0
  Si  Si4  1  0.618  0.618  0.000  1.0
[/CIF]
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