The material structure described by Sm(IrB)4 is alpha Pu-derived structured and crystallizes in the tetragonal P4_2/n space group. Sm(1) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. Ir(1) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to one Sm(1), four equivalent Ir(1), and one B(1) atom. is represented by the CIF card [CIF]
data_Sm(BIr)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.686
_cell_length_b   7.686
_cell_length_c   3.987
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   235.478
_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
  Sm  Sm0  1  0.000  0.000  0.000  1.0
  Sm  Sm1  1  0.500  0.500  0.500  1.0
  B  B2  1  0.658  0.779  0.110  1.0
  B  B3  1  0.342  0.221  0.110  1.0
  B  B4  1  0.279  0.842  0.610  1.0
  B  B5  1  0.721  0.158  0.610  1.0
  B  B6  1  0.842  0.721  0.390  1.0
  B  B7  1  0.158  0.279  0.390  1.0
  B  B8  1  0.221  0.658  0.890  1.0
  B  B9  1  0.779  0.342  0.890  1.0
  Ir  Ir10  1  0.160  0.391  0.889  1.0
  Ir  Ir11  1  0.840  0.609  0.889  1.0
  Ir  Ir12  1  0.891  0.340  0.389  1.0
  Ir  Ir13  1  0.109  0.660  0.389  1.0
  Ir  Ir14  1  0.340  0.109  0.611  1.0
  Ir  Ir15  1  0.660  0.891  0.611  1.0
  Ir  Ir16  1  0.609  0.160  0.111  1.0
  Ir  Ir17  1  0.391  0.840  0.111  1.0
[/CIF]
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The material structure described by Sm(IrB)4 is alpha Pu-derived structured and crystallizes in the tetragonal P4_2/n space group. Sm(1) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. Ir(1) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to one Sm(1), four equivalent Ir(1), and one B(1) atom. is represented by the CIF card [CIF]
data_Sm(BIr)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.686
_cell_length_b   7.686
_cell_length_c   3.987
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   235.478
_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
  Sm  Sm0  1  0.000  0.000  0.000  1.0
  Sm  Sm1  1  0.500  0.500  0.500  1.0
  B  B2  1  0.658  0.779  0.110  1.0
  B  B3  1  0.342  0.221  0.110  1.0
  B  B4  1  0.279  0.842  0.610  1.0
  B  B5  1  0.721  0.158  0.610  1.0
  B  B6  1  0.842  0.721  0.390  1.0
  B  B7  1  0.158  0.279  0.390  1.0
  B  B8  1  0.221  0.658  0.890  1.0
  B  B9  1  0.779  0.342  0.890  1.0
  Ir  Ir10  1  0.160  0.391  0.889  1.0
  Ir  Ir11  1  0.840  0.609  0.889  1.0
  Ir  Ir12  1  0.891  0.340  0.389  1.0
  Ir  Ir13  1  0.109  0.660  0.389  1.0
  Ir  Ir14  1  0.340  0.109  0.611  1.0
  Ir  Ir15  1  0.660  0.891  0.611  1.0
  Ir  Ir16  1  0.609  0.160  0.111  1.0
  Ir  Ir17  1  0.391  0.840  0.111  1.0
[/CIF]
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