The material described by Fe2C crystallizes in the orthorhombic Pnma space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 3-coordinate geometry to three equivalent C(1) atoms. In the second Fe site, Fe(2) is bonded in a 4-coordinate geometry to four equivalent C(1) atoms. C(1) is bonded in a 7-coordinate geometry to three equivalent Fe(1) and four equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.603
_cell_length_b   6.172
_cell_length_c   6.581
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   105.736
_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
  Fe  Fe0  1  0.750  0.676  0.475  1.0
  Fe  Fe1  1  0.750  0.176  0.025  1.0
  Fe  Fe2  1  0.250  0.324  0.525  1.0
  Fe  Fe3  1  0.250  0.824  0.975  1.0
  Fe  Fe4  1  0.250  0.994  0.320  1.0
  Fe  Fe5  1  0.250  0.494  0.180  1.0
  Fe  Fe6  1  0.750  0.006  0.680  1.0
  Fe  Fe7  1  0.750  0.506  0.820  1.0
  C  C8  1  0.250  0.724  0.689  1.0
  C  C9  1  0.250  0.224  0.811  1.0
  C  C10  1  0.750  0.276  0.311  1.0
  C  C11  1  0.750  0.776  0.189  1.0
[/CIF]
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The material described by Fe2C crystallizes in the orthorhombic Pnma space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 3-coordinate geometry to three equivalent C(1) atoms. In the second Fe site, Fe(2) is bonded in a 4-coordinate geometry to four equivalent C(1) atoms. C(1) is bonded in a 7-coordinate geometry to three equivalent Fe(1) and four equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.603
_cell_length_b   6.172
_cell_length_c   6.581
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   105.736
_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
  Fe  Fe0  1  0.750  0.676  0.475  1.0
  Fe  Fe1  1  0.750  0.176  0.025  1.0
  Fe  Fe2  1  0.250  0.324  0.525  1.0
  Fe  Fe3  1  0.250  0.824  0.975  1.0
  Fe  Fe4  1  0.250  0.994  0.320  1.0
  Fe  Fe5  1  0.250  0.494  0.180  1.0
  Fe  Fe6  1  0.750  0.006  0.680  1.0
  Fe  Fe7  1  0.750  0.506  0.820  1.0
  C  C8  1  0.250  0.724  0.689  1.0
  C  C9  1  0.250  0.224  0.811  1.0
  C  C10  1  0.750  0.276  0.311  1.0
  C  C11  1  0.750  0.776  0.189  1.0
[/CIF]
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