The structure described by Lu(FeB)2 crystallizes in the tetragonal I4/mmm space group. Lu(1) is bonded to eight equivalent Fe(1) and eight equivalent B(1) atoms to form distorted LuFe8B8 hexagonal bipyramids that share corners with sixteen equivalent Fe(1)Lu4B4 tetrahedra, edges with twelve equivalent Lu(1)Fe8B8 hexagonal bipyramids, edges with eight equivalent Fe(1)Lu4B4 tetrahedra, and faces with four equivalent Lu(1)Fe8B8 hexagonal bipyramids. Fe(1) is bonded to four equivalent Lu(1) and four equivalent B(1) atoms to form distorted FeLu4B4 tetrahedra that share corners with eight equivalent Lu(1)Fe8B8 hexagonal bipyramids, corners with twelve equivalent Fe(1)Lu4B4 tetrahedra, edges with four equivalent Lu(1)Fe8B8 hexagonal bipyramids, edges with six equivalent Fe(1)Lu4B4 tetrahedra, and faces with four equivalent Fe(1)Lu4B4 tetrahedra. B(1) is bonded in a 9-coordinate geometry to four equivalent Lu(1), four equivalent Fe(1), and one B(1) atom. is represented by the CIF file [CIF]
data_Lu(FeB)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.438
_cell_length_b   3.438
_cell_length_c   5.249
_cell_angle_alpha   109.119
_cell_angle_beta   109.119
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   55.001
_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
  Lu  Lu0  1  0.000  0.000  0.000  1.0
  Fe  Fe1  1  0.250  0.750  0.500  1.0
  Fe  Fe2  1  0.750  0.250  0.500  1.0
  B  B3  1  0.606  0.606  0.213  1.0
  B  B4  1  0.394  0.394  0.787  1.0
[/CIF]
.
The structure described by Lu(FeB)2 crystallizes in the tetragonal I4/mmm space group. Lu(1) is bonded to eight equivalent Fe(1) and eight equivalent B(1) atoms to form distorted LuFe8B8 hexagonal bipyramids that share corners with sixteen equivalent Fe(1)Lu4B4 tetrahedra, edges with twelve equivalent Lu(1)Fe8B8 hexagonal bipyramids, edges with eight equivalent Fe(1)Lu4B4 tetrahedra, and faces with four equivalent Lu(1)Fe8B8 hexagonal bipyramids. Fe(1) is bonded to four equivalent Lu(1) and four equivalent B(1) atoms to form distorted FeLu4B4 tetrahedra that share corners with eight equivalent Lu(1)Fe8B8 hexagonal bipyramids, corners with twelve equivalent Fe(1)Lu4B4 tetrahedra, edges with four equivalent Lu(1)Fe8B8 hexagonal bipyramids, edges with six equivalent Fe(1)Lu4B4 tetrahedra, and faces with four equivalent Fe(1)Lu4B4 tetrahedra. B(1) is bonded in a 9-coordinate geometry to four equivalent Lu(1), four equivalent Fe(1), and one B(1) atom. is represented by the CIF file [CIF]
data_Lu(FeB)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.438
_cell_length_b   3.438
_cell_length_c   5.249
_cell_angle_alpha   109.119
_cell_angle_beta   109.119
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   55.001
_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
  Lu  Lu0  1  0.000  0.000  0.000  1.0
  Fe  Fe1  1  0.250  0.750  0.500  1.0
  Fe  Fe2  1  0.750  0.250  0.500  1.0
  B  B3  1  0.606  0.606  0.213  1.0
  B  B4  1  0.394  0.394  0.787  1.0
[/CIF]
.