The crystal structure described by Mg2FeIr5B2 crystallizes in the tetragonal P4/mbm space group. Mg(1) is bonded in a 11-coordinate geometry to two equivalent Ir(1), eight equivalent Ir(2), and one B(1) atom. Fe(1) is bonded in a body-centered cubic geometry to eight equivalent Ir(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mg(1) and four equivalent B(1) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to four equivalent Mg(1), two equivalent Fe(1), and two equivalent B(1) atoms. B(1) is bonded in a 7-coordinate geometry to one Mg(1), two equivalent Ir(1), and four equivalent Ir(2) atoms. is represented by the CIF card [CIF]
data_Mg2FeB2Ir5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.459
_cell_length_b   9.459
_cell_length_c   2.923
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   261.547
_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
  Mg  Mg0  1  0.824  0.324  0.000  1.0
  Mg  Mg1  1  0.176  0.676  0.000  1.0
  Mg  Mg2  1  0.324  0.176  0.000  1.0
  Mg  Mg3  1  0.676  0.824  0.000  1.0
  Fe  Fe4  1  0.500  0.500  0.000  1.0
  Fe  Fe5  1  0.000  0.000  0.000  1.0
  B  B6  1  0.626  0.126  0.000  1.0
  B  B7  1  0.374  0.874  0.000  1.0
  B  B8  1  0.126  0.374  0.000  1.0
  B  B9  1  0.874  0.626  0.000  1.0
  Ir  Ir10  1  0.500  0.000  0.500  1.0
  Ir  Ir11  1  0.000  0.500  0.500  1.0
  Ir  Ir12  1  0.714  0.571  0.500  1.0
  Ir  Ir13  1  0.286  0.429  0.500  1.0
  Ir  Ir14  1  0.214  0.929  0.500  1.0
  Ir  Ir15  1  0.786  0.071  0.500  1.0
  Ir  Ir16  1  0.429  0.714  0.500  1.0
  Ir  Ir17  1  0.571  0.286  0.500  1.0
  Ir  Ir18  1  0.071  0.214  0.500  1.0
  Ir  Ir19  1  0.929  0.786  0.500  1.0
[/CIF]
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The crystal structure described by Mg2FeIr5B2 crystallizes in the tetragonal P4/mbm space group. Mg(1) is bonded in a 11-coordinate geometry to two equivalent Ir(1), eight equivalent Ir(2), and one B(1) atom. Fe(1) is bonded in a body-centered cubic geometry to eight equivalent Ir(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mg(1) and four equivalent B(1) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to four equivalent Mg(1), two equivalent Fe(1), and two equivalent B(1) atoms. B(1) is bonded in a 7-coordinate geometry to one Mg(1), two equivalent Ir(1), and four equivalent Ir(2) atoms. is represented by the CIF card [CIF]
data_Mg2FeB2Ir5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.459
_cell_length_b   9.459
_cell_length_c   2.923
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   261.547
_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
  Mg  Mg0  1  0.824  0.324  0.000  1.0
  Mg  Mg1  1  0.176  0.676  0.000  1.0
  Mg  Mg2  1  0.324  0.176  0.000  1.0
  Mg  Mg3  1  0.676  0.824  0.000  1.0
  Fe  Fe4  1  0.500  0.500  0.000  1.0
  Fe  Fe5  1  0.000  0.000  0.000  1.0
  B  B6  1  0.626  0.126  0.000  1.0
  B  B7  1  0.374  0.874  0.000  1.0
  B  B8  1  0.126  0.374  0.000  1.0
  B  B9  1  0.874  0.626  0.000  1.0
  Ir  Ir10  1  0.500  0.000  0.500  1.0
  Ir  Ir11  1  0.000  0.500  0.500  1.0
  Ir  Ir12  1  0.714  0.571  0.500  1.0
  Ir  Ir13  1  0.286  0.429  0.500  1.0
  Ir  Ir14  1  0.214  0.929  0.500  1.0
  Ir  Ir15  1  0.786  0.071  0.500  1.0
  Ir  Ir16  1  0.429  0.714  0.500  1.0
  Ir  Ir17  1  0.571  0.286  0.500  1.0
  Ir  Ir18  1  0.071  0.214  0.500  1.0
  Ir  Ir19  1  0.929  0.786  0.500  1.0
[/CIF]
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