The structure described by ErB2C2 crystallizes in the tetragonal P4_2/mmc space group. Er(1) is bonded in a 16-coordinate geometry to eight equivalent B(1) and eight equivalent C(1) atoms. B(1) is bonded in a 2-coordinate geometry to four equivalent Er(1) and two equivalent C(1) atoms. C(1) is bonded in a 3-coordinate geometry to four equivalent Er(1), two equivalent B(1), and one C(1) atom. is represented by the CIF card [CIF]
data_Er(BC)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.789
_cell_length_b   3.789
_cell_length_c   7.092
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   101.824
_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
  Er  Er0  1  0.000  0.000  0.750  1.0
  Er  Er1  1  0.000  0.000  0.250  1.0
  B  B2  1  0.215  0.500  0.000  1.0
  B  B3  1  0.785  0.500  0.000  1.0
  B  B4  1  0.500  0.215  0.500  1.0
  B  B5  1  0.500  0.785  0.500  1.0
  C  C6  1  0.500  0.188  0.000  1.0
  C  C7  1  0.500  0.812  0.000  1.0
  C  C8  1  0.812  0.500  0.500  1.0
  C  C9  1  0.188  0.500  0.500  1.0
[/CIF]
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The structure described by ErB2C2 crystallizes in the tetragonal P4_2/mmc space group. Er(1) is bonded in a 16-coordinate geometry to eight equivalent B(1) and eight equivalent C(1) atoms. B(1) is bonded in a 2-coordinate geometry to four equivalent Er(1) and two equivalent C(1) atoms. C(1) is bonded in a 3-coordinate geometry to four equivalent Er(1), two equivalent B(1), and one C(1) atom. is represented by the CIF card [CIF]
data_Er(BC)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.789
_cell_length_b   3.789
_cell_length_c   7.092
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   101.824
_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
  Er  Er0  1  0.000  0.000  0.750  1.0
  Er  Er1  1  0.000  0.000  0.250  1.0
  B  B2  1  0.215  0.500  0.000  1.0
  B  B3  1  0.785  0.500  0.000  1.0
  B  B4  1  0.500  0.215  0.500  1.0
  B  B5  1  0.500  0.785  0.500  1.0
  C  C6  1  0.500  0.188  0.000  1.0
  C  C7  1  0.500  0.812  0.000  1.0
  C  C8  1  0.812  0.500  0.500  1.0
  C  C9  1  0.188  0.500  0.500  1.0
[/CIF]
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