The compound described by GdCo9Si4 crystallizes in the tetragonal I4/mcm space group. Gd(1) is bonded in a 18-coordinate geometry to two equivalent Co(3), eight equivalent Co(2), and eight equivalent Si(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one Co(1), one Co(3), two equivalent Co(2), and four equivalent Si(1) atoms. In the second Co site, Co(2) is bonded in a 11-coordinate geometry to two equivalent Gd(1), two equivalent Co(1), three equivalent Co(2), and four equivalent Si(1) atoms. In the third Co site, Co(3) is bonded to two equivalent Gd(1) and four equivalent Co(1) atoms to form corner-sharing CoGd2Co4 octahedra. The corner-sharing octahedra are not tilted. Si(1) is bonded in a 10-coordinate geometry to two equivalent Gd(1), four equivalent Co(1), and four equivalent Co(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdCo9Si4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.118
_cell_length_b   8.118
_cell_length_c   8.118
_cell_angle_alpha   122.717
_cell_angle_beta   122.717
_cell_angle_gamma   85.355
_symmetry_Int_Tables_number   1
_cell_volume   361.461
_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
  Gd  Gd0  1  0.750  0.750  0.000  1.0
  Gd  Gd1  1  0.250  0.250  0.000  1.0
  Co  Co2  1  0.227  0.522  0.749  1.0
  Co  Co3  1  0.522  0.773  0.295  1.0
  Co  Co4  1  0.438  0.702  0.500  1.0
  Co  Co5  1  0.478  0.227  0.705  1.0
  Co  Co6  1  0.798  0.062  0.500  1.0
  Co  Co7  1  0.298  0.798  0.736  1.0
  Co  Co8  1  0.773  0.478  0.251  1.0
  Co  Co9  1  0.727  0.978  0.705  1.0
  Co  Co10  1  0.062  0.562  0.264  1.0
  Co  Co11  1  0.562  0.298  0.500  1.0
  Co  Co12  1  0.702  0.202  0.264  1.0
  Co  Co13  1  0.938  0.438  0.736  1.0
  Co  Co14  1  0.202  0.938  0.500  1.0
  Co  Co15  1  0.978  0.273  0.251  1.0
  Co  Co16  1  0.022  0.727  0.749  1.0
  Co  Co17  1  0.273  0.022  0.295  1.0
  Co  Co18  1  0.000  0.000  0.000  1.0
  Co  Co19  1  0.500  0.500  0.000  1.0
  Si  Si20  1  0.684  0.545  0.500  1.0
  Si  Si21  1  0.316  0.455  0.500  1.0
  Si  Si22  1  0.184  0.684  0.139  1.0
  Si  Si23  1  0.545  0.045  0.861  1.0
  Si  Si24  1  0.816  0.316  0.861  1.0
  Si  Si25  1  0.045  0.184  0.500  1.0
  Si  Si26  1  0.455  0.955  0.139  1.0
  Si  Si27  1  0.955  0.816  0.500  1.0
[/CIF]
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The compound described by GdCo9Si4 crystallizes in the tetragonal I4/mcm space group. Gd(1) is bonded in a 18-coordinate geometry to two equivalent Co(3), eight equivalent Co(2), and eight equivalent Si(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one Co(1), one Co(3), two equivalent Co(2), and four equivalent Si(1) atoms. In the second Co site, Co(2) is bonded in a 11-coordinate geometry to two equivalent Gd(1), two equivalent Co(1), three equivalent Co(2), and four equivalent Si(1) atoms. In the third Co site, Co(3) is bonded to two equivalent Gd(1) and four equivalent Co(1) atoms to form corner-sharing CoGd2Co4 octahedra. The corner-sharing octahedra are not tilted. Si(1) is bonded in a 10-coordinate geometry to two equivalent Gd(1), four equivalent Co(1), and four equivalent Co(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdCo9Si4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.118
_cell_length_b   8.118
_cell_length_c   8.118
_cell_angle_alpha   122.717
_cell_angle_beta   122.717
_cell_angle_gamma   85.355
_symmetry_Int_Tables_number   1
_cell_volume   361.461
_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
  Gd  Gd0  1  0.750  0.750  0.000  1.0
  Gd  Gd1  1  0.250  0.250  0.000  1.0
  Co  Co2  1  0.227  0.522  0.749  1.0
  Co  Co3  1  0.522  0.773  0.295  1.0
  Co  Co4  1  0.438  0.702  0.500  1.0
  Co  Co5  1  0.478  0.227  0.705  1.0
  Co  Co6  1  0.798  0.062  0.500  1.0
  Co  Co7  1  0.298  0.798  0.736  1.0
  Co  Co8  1  0.773  0.478  0.251  1.0
  Co  Co9  1  0.727  0.978  0.705  1.0
  Co  Co10  1  0.062  0.562  0.264  1.0
  Co  Co11  1  0.562  0.298  0.500  1.0
  Co  Co12  1  0.702  0.202  0.264  1.0
  Co  Co13  1  0.938  0.438  0.736  1.0
  Co  Co14  1  0.202  0.938  0.500  1.0
  Co  Co15  1  0.978  0.273  0.251  1.0
  Co  Co16  1  0.022  0.727  0.749  1.0
  Co  Co17  1  0.273  0.022  0.295  1.0
  Co  Co18  1  0.000  0.000  0.000  1.0
  Co  Co19  1  0.500  0.500  0.000  1.0
  Si  Si20  1  0.684  0.545  0.500  1.0
  Si  Si21  1  0.316  0.455  0.500  1.0
  Si  Si22  1  0.184  0.684  0.139  1.0
  Si  Si23  1  0.545  0.045  0.861  1.0
  Si  Si24  1  0.816  0.316  0.861  1.0
  Si  Si25  1  0.045  0.184  0.500  1.0
  Si  Si26  1  0.455  0.955  0.139  1.0
  Si  Si27  1  0.955  0.816  0.500  1.0
[/CIF]
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