The material structure described by Tb2B2C3 crystallizes in the orthorhombic Cmmm space group. Tb(1) is bonded in a 10-coordinate geometry to six equivalent B(1) and four equivalent C(1) atoms. B(1) is bonded in a single-bond geometry to six equivalent Tb(1) and one C(1) atom. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to four equivalent Tb(1), one B(1), and one C(2) atom. In the second C site, C(2) is bonded in a linear geometry to two equivalent C(1) atoms. is represented by the CIF card [CIF]
data_Tb2B2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.859
_cell_length_b   6.859
_cell_length_c   3.705
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   151.380
_symmetry_Int_Tables_number   1
_cell_volume   83.494
_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
  Tb  Tb0  1  0.863  0.137  0.000  1.0
  Tb  Tb1  1  0.137  0.863  0.000  1.0
  B  B2  1  0.717  0.283  0.500  1.0
  B  B3  1  0.283  0.717  0.500  1.0
  C  C4  1  0.399  0.601  0.500  1.0
  C  C5  1  0.500  0.500  0.500  1.0
  C  C6  1  0.601  0.399  0.500  1.0
[/CIF]
.
The material structure described by Tb2B2C3 crystallizes in the orthorhombic Cmmm space group. Tb(1) is bonded in a 10-coordinate geometry to six equivalent B(1) and four equivalent C(1) atoms. B(1) is bonded in a single-bond geometry to six equivalent Tb(1) and one C(1) atom. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to four equivalent Tb(1), one B(1), and one C(2) atom. In the second C site, C(2) is bonded in a linear geometry to two equivalent C(1) atoms. is represented by the CIF card [CIF]
data_Tb2B2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.859
_cell_length_b   6.859
_cell_length_c   3.705
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   151.380
_symmetry_Int_Tables_number   1
_cell_volume   83.494
_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
  Tb  Tb0  1  0.863  0.137  0.000  1.0
  Tb  Tb1  1  0.137  0.863  0.000  1.0
  B  B2  1  0.717  0.283  0.500  1.0
  B  B3  1  0.283  0.717  0.500  1.0
  C  C4  1  0.399  0.601  0.500  1.0
  C  C5  1  0.500  0.500  0.500  1.0
  C  C6  1  0.601  0.399  0.500  1.0
[/CIF]
.