The material structure described by Tb2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Tb(1) is bonded in a 6-coordinate geometry to six equivalent C(1) atoms. C(1) is bonded to four equivalent Tb(1) and one C(1) atom to form a mixture of distorted edge and corner-sharing CTb4C trigonal bipyramids. is represented by the CIF card [CIF]
data_Tb2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.156
_cell_length_b   7.156
_cell_length_c   7.156
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   282.050
_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
  Tb  Tb0  1  0.601  0.601  0.601  1.0
  Tb  Tb1  1  0.399  0.500  0.000  1.0
  Tb  Tb2  1  0.500  0.000  0.399  1.0
  Tb  Tb3  1  0.000  0.399  0.500  1.0
  Tb  Tb4  1  0.500  0.000  0.899  1.0
  Tb  Tb5  1  0.000  0.899  0.500  1.0
  Tb  Tb6  1  0.899  0.500  0.000  1.0
  Tb  Tb7  1  0.101  0.101  0.101  1.0
  C  C8  1  0.750  0.794  0.044  1.0
  C  C9  1  0.750  0.956  0.206  1.0
  C  C10  1  0.294  0.250  0.544  1.0
  C  C11  1  0.544  0.294  0.250  1.0
  C  C12  1  0.206  0.750  0.956  1.0
  C  C13  1  0.956  0.206  0.750  1.0
  C  C14  1  0.250  0.706  0.456  1.0
  C  C15  1  0.706  0.456  0.250  1.0
  C  C16  1  0.250  0.544  0.294  1.0
  C  C17  1  0.456  0.250  0.706  1.0
  C  C18  1  0.044  0.750  0.794  1.0
  C  C19  1  0.794  0.044  0.750  1.0
[/CIF]
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The material structure described by Tb2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Tb(1) is bonded in a 6-coordinate geometry to six equivalent C(1) atoms. C(1) is bonded to four equivalent Tb(1) and one C(1) atom to form a mixture of distorted edge and corner-sharing CTb4C trigonal bipyramids. is represented by the CIF card [CIF]
data_Tb2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.156
_cell_length_b   7.156
_cell_length_c   7.156
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   282.050
_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
  Tb  Tb0  1  0.601  0.601  0.601  1.0
  Tb  Tb1  1  0.399  0.500  0.000  1.0
  Tb  Tb2  1  0.500  0.000  0.399  1.0
  Tb  Tb3  1  0.000  0.399  0.500  1.0
  Tb  Tb4  1  0.500  0.000  0.899  1.0
  Tb  Tb5  1  0.000  0.899  0.500  1.0
  Tb  Tb6  1  0.899  0.500  0.000  1.0
  Tb  Tb7  1  0.101  0.101  0.101  1.0
  C  C8  1  0.750  0.794  0.044  1.0
  C  C9  1  0.750  0.956  0.206  1.0
  C  C10  1  0.294  0.250  0.544  1.0
  C  C11  1  0.544  0.294  0.250  1.0
  C  C12  1  0.206  0.750  0.956  1.0
  C  C13  1  0.956  0.206  0.750  1.0
  C  C14  1  0.250  0.706  0.456  1.0
  C  C15  1  0.706  0.456  0.250  1.0
  C  C16  1  0.250  0.544  0.294  1.0
  C  C17  1  0.456  0.250  0.706  1.0
  C  C18  1  0.044  0.750  0.794  1.0
  C  C19  1  0.794  0.044  0.750  1.0
[/CIF]
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