The material described by Zr9Pt11 crystallizes in the tetragonal I4/m space group. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 9-coordinate geometry to one Pt(3), two equivalent Pt(2), and six equivalent Pt(1) atoms. In the second Zr site, Zr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Pt(2) and six equivalent Pt(1) atoms. In the third Zr site, Zr(3) is bonded in a 10-coordinate geometry to two equivalent Pt(3) and eight equivalent Pt(1) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 7-coordinate geometry to one Zr(3), three equivalent Zr(1), and three equivalent Zr(2) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to four equivalent Zr(1) and four equivalent Zr(2) atoms. In the third Pt site, Pt(3) is bonded in a distorted square co-planar geometry to two equivalent Zr(3) and four equivalent Zr(1) atoms. is represented by the CIF file [CIF]
data_Zr9Pt11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.175
_cell_length_b   8.175
_cell_length_c   8.175
_cell_angle_alpha   100.139
_cell_angle_beta   100.139
_cell_angle_gamma   130.386
_symmetry_Int_Tables_number   1
_cell_volume   377.784
_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
  Zr  Zr0  1  0.418  0.247  0.665  1.0
  Zr  Zr1  1  0.753  0.418  0.171  1.0
  Zr  Zr2  1  0.247  0.582  0.829  1.0
  Zr  Zr3  1  0.582  0.753  0.335  1.0
  Zr  Zr4  1  0.095  0.307  0.403  1.0
  Zr  Zr5  1  0.693  0.095  0.788  1.0
  Zr  Zr6  1  0.307  0.905  0.212  1.0
  Zr  Zr7  1  0.905  0.693  0.597  1.0
  Zr  Zr8  1  0.000  0.000  0.000  1.0
  Pt  Pt9  1  0.905  0.563  0.887  1.0
  Pt  Pt10  1  0.563  0.676  0.658  1.0
  Pt  Pt11  1  0.676  0.018  0.113  1.0
  Pt  Pt12  1  0.018  0.905  0.342  1.0
  Pt  Pt13  1  0.437  0.324  0.342  1.0
  Pt  Pt14  1  0.095  0.437  0.113  1.0
  Pt  Pt15  1  0.324  0.982  0.887  1.0
  Pt  Pt16  1  0.982  0.095  0.658  1.0
  Pt  Pt17  1  0.750  0.250  0.500  1.0
  Pt  Pt18  1  0.250  0.750  0.500  1.0
  Pt  Pt19  1  0.500  0.500  0.000  1.0
[/CIF]
.
The material described by Zr9Pt11 crystallizes in the tetragonal I4/m space group. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 9-coordinate geometry to one Pt(3), two equivalent Pt(2), and six equivalent Pt(1) atoms. In the second Zr site, Zr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Pt(2) and six equivalent Pt(1) atoms. In the third Zr site, Zr(3) is bonded in a 10-coordinate geometry to two equivalent Pt(3) and eight equivalent Pt(1) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 7-coordinate geometry to one Zr(3), three equivalent Zr(1), and three equivalent Zr(2) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to four equivalent Zr(1) and four equivalent Zr(2) atoms. In the third Pt site, Pt(3) is bonded in a distorted square co-planar geometry to two equivalent Zr(3) and four equivalent Zr(1) atoms. is represented by the CIF file [CIF]
data_Zr9Pt11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.175
_cell_length_b   8.175
_cell_length_c   8.175
_cell_angle_alpha   100.139
_cell_angle_beta   100.139
_cell_angle_gamma   130.386
_symmetry_Int_Tables_number   1
_cell_volume   377.784
_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
  Zr  Zr0  1  0.418  0.247  0.665  1.0
  Zr  Zr1  1  0.753  0.418  0.171  1.0
  Zr  Zr2  1  0.247  0.582  0.829  1.0
  Zr  Zr3  1  0.582  0.753  0.335  1.0
  Zr  Zr4  1  0.095  0.307  0.403  1.0
  Zr  Zr5  1  0.693  0.095  0.788  1.0
  Zr  Zr6  1  0.307  0.905  0.212  1.0
  Zr  Zr7  1  0.905  0.693  0.597  1.0
  Zr  Zr8  1  0.000  0.000  0.000  1.0
  Pt  Pt9  1  0.905  0.563  0.887  1.0
  Pt  Pt10  1  0.563  0.676  0.658  1.0
  Pt  Pt11  1  0.676  0.018  0.113  1.0
  Pt  Pt12  1  0.018  0.905  0.342  1.0
  Pt  Pt13  1  0.437  0.324  0.342  1.0
  Pt  Pt14  1  0.095  0.437  0.113  1.0
  Pt  Pt15  1  0.324  0.982  0.887  1.0
  Pt  Pt16  1  0.982  0.095  0.658  1.0
  Pt  Pt17  1  0.750  0.250  0.500  1.0
  Pt  Pt18  1  0.250  0.750  0.500  1.0
  Pt  Pt19  1  0.500  0.500  0.000  1.0
[/CIF]
.