The crystal structure described by Er5Pt4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 6-coordinate geometry to one Pt(3), two equivalent Pt(2), and three equivalent Pt(1) atoms. In the second Er site, Er(2) is bonded in a 7-coordinate geometry to one Pt(2), two equivalent Pt(3), and four equivalent Pt(1) atoms. In the third Er site, Er(3) is bonded to two equivalent Pt(1), two equivalent Pt(2), and two equivalent Pt(3) atoms to form distorted corner-sharing ErPt6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), four equivalent Er(2), and one Pt(2) atom. In the second Pt site, Pt(1) is bonded in a 8-coordinate geometry to one Er(3), three equivalent Er(1), and four equivalent Er(2) atoms. In the third Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Er(3), four equivalent Er(1), and one Pt(3) atom. is represented by the CIF card [CIF]
data_Er5Pt4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.404
_cell_length_b   7.485
_cell_length_c   14.388
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   797.375
_cell_formula_units_Z   4
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
  Er  Er0  1  0.349  0.832  0.877  1.0
  Er  Er1  1  0.849  0.668  0.623  1.0
  Er  Er2  1  0.651  0.168  0.377  1.0
  Er  Er3  1  0.151  0.332  0.123  1.0
  Er  Er4  1  0.651  0.168  0.123  1.0
  Er  Er5  1  0.151  0.332  0.377  1.0
  Er  Er6  1  0.349  0.832  0.623  1.0
  Er  Er7  1  0.849  0.668  0.877  1.0
  Er  Er8  1  0.503  0.320  0.907  1.0
  Er  Er9  1  0.003  0.180  0.593  1.0
  Er  Er10  1  0.497  0.680  0.407  1.0
  Er  Er11  1  0.997  0.820  0.093  1.0
  Er  Er12  1  0.497  0.680  0.093  1.0
  Er  Er13  1  0.997  0.820  0.407  1.0
  Er  Er14  1  0.503  0.320  0.593  1.0
  Er  Er15  1  0.003  0.180  0.907  1.0
  Er  Er16  1  0.187  0.489  0.750  1.0
  Er  Er17  1  0.687  0.011  0.750  1.0
  Er  Er18  1  0.813  0.511  0.250  1.0
  Er  Er19  1  0.313  0.989  0.250  1.0
  Pt  Pt20  1  0.313  0.033  0.041  1.0
  Pt  Pt21  1  0.813  0.467  0.459  1.0
  Pt  Pt22  1  0.687  0.967  0.541  1.0
  Pt  Pt23  1  0.187  0.533  0.959  1.0
  Pt  Pt24  1  0.687  0.967  0.959  1.0
  Pt  Pt25  1  0.187  0.533  0.541  1.0
  Pt  Pt26  1  0.313  0.033  0.459  1.0
  Pt  Pt27  1  0.813  0.467  0.041  1.0
  Pt  Pt28  1  0.553  0.611  0.750  1.0
  Pt  Pt29  1  0.053  0.889  0.750  1.0
  Pt  Pt30  1  0.447  0.389  0.250  1.0
  Pt  Pt31  1  0.947  0.111  0.250  1.0
  Pt  Pt32  1  0.325  0.143  0.750  1.0
  Pt  Pt33  1  0.825  0.357  0.750  1.0
  Pt  Pt34  1  0.675  0.857  0.250  1.0
  Pt  Pt35  1  0.175  0.643  0.250  1.0
[/CIF]
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The crystal structure described by Er5Pt4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 6-coordinate geometry to one Pt(3), two equivalent Pt(2), and three equivalent Pt(1) atoms. In the second Er site, Er(2) is bonded in a 7-coordinate geometry to one Pt(2), two equivalent Pt(3), and four equivalent Pt(1) atoms. In the third Er site, Er(3) is bonded to two equivalent Pt(1), two equivalent Pt(2), and two equivalent Pt(3) atoms to form distorted corner-sharing ErPt6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), four equivalent Er(2), and one Pt(2) atom. In the second Pt site, Pt(1) is bonded in a 8-coordinate geometry to one Er(3), three equivalent Er(1), and four equivalent Er(2) atoms. In the third Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Er(3), four equivalent Er(1), and one Pt(3) atom. is represented by the CIF card [CIF]
data_Er5Pt4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.404
_cell_length_b   7.485
_cell_length_c   14.388
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   797.375
_cell_formula_units_Z   4
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
  Er  Er0  1  0.349  0.832  0.877  1.0
  Er  Er1  1  0.849  0.668  0.623  1.0
  Er  Er2  1  0.651  0.168  0.377  1.0
  Er  Er3  1  0.151  0.332  0.123  1.0
  Er  Er4  1  0.651  0.168  0.123  1.0
  Er  Er5  1  0.151  0.332  0.377  1.0
  Er  Er6  1  0.349  0.832  0.623  1.0
  Er  Er7  1  0.849  0.668  0.877  1.0
  Er  Er8  1  0.503  0.320  0.907  1.0
  Er  Er9  1  0.003  0.180  0.593  1.0
  Er  Er10  1  0.497  0.680  0.407  1.0
  Er  Er11  1  0.997  0.820  0.093  1.0
  Er  Er12  1  0.497  0.680  0.093  1.0
  Er  Er13  1  0.997  0.820  0.407  1.0
  Er  Er14  1  0.503  0.320  0.593  1.0
  Er  Er15  1  0.003  0.180  0.907  1.0
  Er  Er16  1  0.187  0.489  0.750  1.0
  Er  Er17  1  0.687  0.011  0.750  1.0
  Er  Er18  1  0.813  0.511  0.250  1.0
  Er  Er19  1  0.313  0.989  0.250  1.0
  Pt  Pt20  1  0.313  0.033  0.041  1.0
  Pt  Pt21  1  0.813  0.467  0.459  1.0
  Pt  Pt22  1  0.687  0.967  0.541  1.0
  Pt  Pt23  1  0.187  0.533  0.959  1.0
  Pt  Pt24  1  0.687  0.967  0.959  1.0
  Pt  Pt25  1  0.187  0.533  0.541  1.0
  Pt  Pt26  1  0.313  0.033  0.459  1.0
  Pt  Pt27  1  0.813  0.467  0.041  1.0
  Pt  Pt28  1  0.553  0.611  0.750  1.0
  Pt  Pt29  1  0.053  0.889  0.750  1.0
  Pt  Pt30  1  0.447  0.389  0.250  1.0
  Pt  Pt31  1  0.947  0.111  0.250  1.0
  Pt  Pt32  1  0.325  0.143  0.750  1.0
  Pt  Pt33  1  0.825  0.357  0.750  1.0
  Pt  Pt34  1  0.675  0.857  0.250  1.0
  Pt  Pt35  1  0.175  0.643  0.250  1.0
[/CIF]
.