The material structure described by CeMnSi2 crystallizes in the orthorhombic Cmcm space group. Ce(1) is bonded in a 14-coordinate geometry to four equivalent Mn(1), four equivalent Si(1), and six equivalent Si(2) atoms. Mn(1) is bonded to four equivalent Ce(1) and four equivalent Si(1) atoms to form a mixture of edge and face-sharing MnCe4Si4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), four equivalent Mn(1), and one Si(2) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to six equivalent Ce(1), one Si(1), and two equivalent Si(2) atoms. is represented by the CIF card [CIF]
data_CeMnSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.009
_cell_length_b   4.047
_cell_length_c   8.984
_cell_angle_alpha   103.016
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   141.985
_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
  Ce  Ce0  1  0.250  0.899  0.798  1.0
  Ce  Ce1  1  0.750  0.101  0.202  1.0
  Mn  Mn2  1  0.750  0.750  0.500  1.0
  Mn  Mn3  1  0.250  0.250  0.500  1.0
  Si  Si4  1  0.250  0.675  0.350  1.0
  Si  Si5  1  0.750  0.325  0.650  1.0
  Si  Si6  1  0.750  0.464  0.928  1.0
  Si  Si7  1  0.250  0.536  0.072  1.0
[/CIF]
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The material structure described by CeMnSi2 crystallizes in the orthorhombic Cmcm space group. Ce(1) is bonded in a 14-coordinate geometry to four equivalent Mn(1), four equivalent Si(1), and six equivalent Si(2) atoms. Mn(1) is bonded to four equivalent Ce(1) and four equivalent Si(1) atoms to form a mixture of edge and face-sharing MnCe4Si4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), four equivalent Mn(1), and one Si(2) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to six equivalent Ce(1), one Si(1), and two equivalent Si(2) atoms. is represented by the CIF card [CIF]
data_CeMnSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.009
_cell_length_b   4.047
_cell_length_c   8.984
_cell_angle_alpha   103.016
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   141.985
_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
  Ce  Ce0  1  0.250  0.899  0.798  1.0
  Ce  Ce1  1  0.750  0.101  0.202  1.0
  Mn  Mn2  1  0.750  0.750  0.500  1.0
  Mn  Mn3  1  0.250  0.250  0.500  1.0
  Si  Si4  1  0.250  0.675  0.350  1.0
  Si  Si5  1  0.750  0.325  0.650  1.0
  Si  Si6  1  0.750  0.464  0.928  1.0
  Si  Si7  1  0.250  0.536  0.072  1.0
[/CIF]
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