The material structure described by Er3Pt4 crystallizes in the triclinic P-1 space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(5), and three equivalent Pt(4) atoms. In the second Er site, Er(2) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(4), and three equivalent Pt(5) atoms. In the third Er site, Er(3) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(4), two equivalent Pt(5), and three equivalent Pt(3) atoms. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Er(1), two equivalent Er(2), and two equivalent Er(3) atoms. In the second Pt site, Pt(2) is bonded in a distorted octahedral geometry to two equivalent Er(1), two equivalent Er(2), and two equivalent Er(3) atoms. In the third Pt site, Pt(3) is bonded in a 10-coordinate geometry to two equivalent Er(1), two equivalent Er(2), three equivalent Er(3), one Pt(3), one Pt(4), and one Pt(5) atom. In the fourth Pt site, Pt(4) is bonded in a 10-coordinate geometry to two equivalent Er(2), two equivalent Er(3), three equivalent Er(1), one Pt(3), one Pt(4), and one Pt(5) atom. In the fifth Pt site, Pt(5) is bonded in a 10-coordinate geometry to two equivalent Er(1), two equivalent Er(3), three equivalent Er(2), one Pt(3), one Pt(4), and one Pt(5) atom. is represented by the CIF card [CIF]
data_Er3Pt4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.670
_cell_length_b   7.754
_cell_length_c   7.758
_cell_angle_alpha   114.327
_cell_angle_beta   104.129
_cell_angle_gamma   104.109
_symmetry_Int_Tables_number   1
_cell_volume   277.556
_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
  Er  Er0  1  0.405  0.126  0.378  1.0
  Er  Er1  1  0.027  0.622  0.748  1.0
  Er  Er2  1  0.279  0.252  0.874  1.0
  Er  Er3  1  0.595  0.874  0.622  1.0
  Er  Er4  1  0.973  0.378  0.252  1.0
  Er  Er5  1  0.721  0.748  0.126  1.0
  Pt  Pt6  1  0.000  0.000  0.000  1.0
  Pt  Pt7  1  0.500  0.000  0.000  1.0
  Pt  Pt8  1  0.228  0.676  0.166  1.0
  Pt  Pt9  1  0.062  0.834  0.510  1.0
  Pt  Pt10  1  0.552  0.490  0.324  1.0
  Pt  Pt11  1  0.772  0.324  0.834  1.0
  Pt  Pt12  1  0.938  0.166  0.490  1.0
  Pt  Pt13  1  0.448  0.510  0.676  1.0
[/CIF]
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The material structure described by Er3Pt4 crystallizes in the triclinic P-1 space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(5), and three equivalent Pt(4) atoms. In the second Er site, Er(2) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(4), and three equivalent Pt(5) atoms. In the third Er site, Er(3) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(4), two equivalent Pt(5), and three equivalent Pt(3) atoms. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Er(1), two equivalent Er(2), and two equivalent Er(3) atoms. In the second Pt site, Pt(2) is bonded in a distorted octahedral geometry to two equivalent Er(1), two equivalent Er(2), and two equivalent Er(3) atoms. In the third Pt site, Pt(3) is bonded in a 10-coordinate geometry to two equivalent Er(1), two equivalent Er(2), three equivalent Er(3), one Pt(3), one Pt(4), and one Pt(5) atom. In the fourth Pt site, Pt(4) is bonded in a 10-coordinate geometry to two equivalent Er(2), two equivalent Er(3), three equivalent Er(1), one Pt(3), one Pt(4), and one Pt(5) atom. In the fifth Pt site, Pt(5) is bonded in a 10-coordinate geometry to two equivalent Er(1), two equivalent Er(3), three equivalent Er(2), one Pt(3), one Pt(4), and one Pt(5) atom. is represented by the CIF card [CIF]
data_Er3Pt4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.670
_cell_length_b   7.754
_cell_length_c   7.758
_cell_angle_alpha   114.327
_cell_angle_beta   104.129
_cell_angle_gamma   104.109
_symmetry_Int_Tables_number   1
_cell_volume   277.556
_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
  Er  Er0  1  0.405  0.126  0.378  1.0
  Er  Er1  1  0.027  0.622  0.748  1.0
  Er  Er2  1  0.279  0.252  0.874  1.0
  Er  Er3  1  0.595  0.874  0.622  1.0
  Er  Er4  1  0.973  0.378  0.252  1.0
  Er  Er5  1  0.721  0.748  0.126  1.0
  Pt  Pt6  1  0.000  0.000  0.000  1.0
  Pt  Pt7  1  0.500  0.000  0.000  1.0
  Pt  Pt8  1  0.228  0.676  0.166  1.0
  Pt  Pt9  1  0.062  0.834  0.510  1.0
  Pt  Pt10  1  0.552  0.490  0.324  1.0
  Pt  Pt11  1  0.772  0.324  0.834  1.0
  Pt  Pt12  1  0.938  0.166  0.490  1.0
  Pt  Pt13  1  0.448  0.510  0.676  1.0
[/CIF]
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