The structure described by Sc11Ir4 crystallizes in the cubic Fm-3m space group. The structure consists of four Sc6Ir clusters inside a Sc16Ir7 framework. In each Sc6Ir cluster, Sc(2) is bonded in a single-bond geometry to one Ir(3) atom. Ir(3) is bonded in an octahedral geometry to six equivalent Sc(2) atoms. In the Sc16Ir7 framework, there are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a trigonal planar geometry to three equivalent Ir(1) atoms. In the second Sc site, Sc(3) is bonded to one Ir(2) and three equivalent Ir(1) atoms to form a mixture of distorted corner and edge-sharing ScIr4 tetrahedra. There are two inequivalent Ir sites. In the first Ir site, Ir(2) is bonded in a body-centered cubic geometry to eight equivalent Sc(3) atoms. In the second Ir site, Ir(1) is bonded in a 8-coordinate geometry to four equivalent Sc(1) and four equivalent Sc(3) atoms. is represented by the CIF file [CIF]
data_Sc11Ir4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.454
_cell_length_b   9.454
_cell_length_c   9.454
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   597.567
_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
  Sc  Sc0  1  0.843  0.843  0.843  1.0
  Sc  Sc1  1  0.157  0.157  0.530  1.0
  Sc  Sc2  1  0.157  0.530  0.157  1.0
  Sc  Sc3  1  0.530  0.157  0.157  1.0
  Sc  Sc4  1  0.843  0.470  0.843  1.0
  Sc  Sc5  1  0.470  0.843  0.843  1.0
  Sc  Sc6  1  0.843  0.843  0.470  1.0
  Sc  Sc7  1  0.157  0.157  0.157  1.0
  Sc  Sc8  1  0.802  0.198  0.198  1.0
  Sc  Sc9  1  0.802  0.802  0.198  1.0
  Sc  Sc10  1  0.198  0.198  0.802  1.0
  Sc  Sc11  1  0.802  0.198  0.802  1.0
  Sc  Sc12  1  0.198  0.802  0.198  1.0
  Sc  Sc13  1  0.198  0.802  0.802  1.0
  Sc  Sc14  1  0.383  0.383  0.383  1.0
  Sc  Sc15  1  0.617  0.617  0.148  1.0
  Sc  Sc16  1  0.148  0.617  0.617  1.0
  Sc  Sc17  1  0.617  0.148  0.617  1.0
  Sc  Sc18  1  0.852  0.383  0.383  1.0
  Sc  Sc19  1  0.383  0.852  0.383  1.0
  Sc  Sc20  1  0.383  0.383  0.852  1.0
  Sc  Sc21  1  0.617  0.617  0.617  1.0
  Ir  Ir22  1  0.500  1.000  0.500  1.0
  Ir  Ir23  1  0.000  0.500  1.000  1.0
  Ir  Ir24  1  1.000  0.500  0.500  1.0
  Ir  Ir25  1  0.500  0.500  1.000  1.0
  Ir  Ir26  1  0.000  1.000  0.500  1.0
  Ir  Ir27  1  0.500  1.000  1.000  1.0
  Ir  Ir28  1  0.500  0.500  0.500  1.0
  Ir  Ir29  1  0.000  1.000  1.000  1.0
[/CIF]
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The structure described by Sc11Ir4 crystallizes in the cubic Fm-3m space group. The structure consists of four Sc6Ir clusters inside a Sc16Ir7 framework. In each Sc6Ir cluster, Sc(2) is bonded in a single-bond geometry to one Ir(3) atom. Ir(3) is bonded in an octahedral geometry to six equivalent Sc(2) atoms. In the Sc16Ir7 framework, there are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a trigonal planar geometry to three equivalent Ir(1) atoms. In the second Sc site, Sc(3) is bonded to one Ir(2) and three equivalent Ir(1) atoms to form a mixture of distorted corner and edge-sharing ScIr4 tetrahedra. There are two inequivalent Ir sites. In the first Ir site, Ir(2) is bonded in a body-centered cubic geometry to eight equivalent Sc(3) atoms. In the second Ir site, Ir(1) is bonded in a 8-coordinate geometry to four equivalent Sc(1) and four equivalent Sc(3) atoms. is represented by the CIF file [CIF]
data_Sc11Ir4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.454
_cell_length_b   9.454
_cell_length_c   9.454
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   597.567
_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
  Sc  Sc0  1  0.843  0.843  0.843  1.0
  Sc  Sc1  1  0.157  0.157  0.530  1.0
  Sc  Sc2  1  0.157  0.530  0.157  1.0
  Sc  Sc3  1  0.530  0.157  0.157  1.0
  Sc  Sc4  1  0.843  0.470  0.843  1.0
  Sc  Sc5  1  0.470  0.843  0.843  1.0
  Sc  Sc6  1  0.843  0.843  0.470  1.0
  Sc  Sc7  1  0.157  0.157  0.157  1.0
  Sc  Sc8  1  0.802  0.198  0.198  1.0
  Sc  Sc9  1  0.802  0.802  0.198  1.0
  Sc  Sc10  1  0.198  0.198  0.802  1.0
  Sc  Sc11  1  0.802  0.198  0.802  1.0
  Sc  Sc12  1  0.198  0.802  0.198  1.0
  Sc  Sc13  1  0.198  0.802  0.802  1.0
  Sc  Sc14  1  0.383  0.383  0.383  1.0
  Sc  Sc15  1  0.617  0.617  0.148  1.0
  Sc  Sc16  1  0.148  0.617  0.617  1.0
  Sc  Sc17  1  0.617  0.148  0.617  1.0
  Sc  Sc18  1  0.852  0.383  0.383  1.0
  Sc  Sc19  1  0.383  0.852  0.383  1.0
  Sc  Sc20  1  0.383  0.383  0.852  1.0
  Sc  Sc21  1  0.617  0.617  0.617  1.0
  Ir  Ir22  1  0.500  1.000  0.500  1.0
  Ir  Ir23  1  0.000  0.500  1.000  1.0
  Ir  Ir24  1  1.000  0.500  0.500  1.0
  Ir  Ir25  1  0.500  0.500  1.000  1.0
  Ir  Ir26  1  0.000  1.000  0.500  1.0
  Ir  Ir27  1  0.500  1.000  1.000  1.0
  Ir  Ir28  1  0.500  0.500  0.500  1.0
  Ir  Ir29  1  0.000  1.000  1.000  1.0
[/CIF]
.