The compound described by Er6Pt5Ga17 crystallizes in the monoclinic C2/m space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 12-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), one Ga(4), two equivalent Ga(5), two equivalent Ga(6), two equivalent Ga(7), and two equivalent Ga(8) atoms. In the second Er site, Er(2) is bonded in a 12-coordinate geometry to two equivalent Pt(2), two equivalent Pt(3), one Ga(3), two equivalent Ga(1), two equivalent Ga(4), two equivalent Ga(6), and two equivalent Ga(8) atoms. In the third Er site, Er(3) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(7), two equivalent Ga(9), and three equivalent Ga(2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 10-coordinate geometry to two equivalent Er(3), one Ga(5), one Ga(8), two equivalent Ga(2), two equivalent Ga(3), and two equivalent Ga(9) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to two equivalent Er(2), one Ga(6), one Ga(7), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the third Pt site, Pt(3) is bonded in a 8-coordinate geometry to four equivalent Er(2), two equivalent Ga(1), and two equivalent Ga(4) atoms. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Er(1), two equivalent Er(2), one Pt(3), two equivalent Pt(2), and three equivalent Ga(6) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Er(1), three equivalent Er(3), two equivalent Pt(1), one Ga(9), and three equivalent Ga(5) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Er(1), one Er(2), two equivalent Er(3), two equivalent Pt(1), one Ga(7), one Ga(9), and two equivalent Ga(8) atoms. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to one Er(1), two equivalent Er(2), one Pt(3), two equivalent Pt(2), one Ga(8), and two equivalent Ga(7) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Pt(1), one Ga(7), and three equivalent Ga(2) atoms. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(2), one Pt(2), one Ga(8), and three equivalent Ga(1) atoms. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Pt(2), one Ga(3), one Ga(5), and two equivalent Ga(4) atoms. In the eighth Ga site, Ga(8) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(2), one Pt(1), one Ga(4), one Ga(6), and two equivalent Ga(3) atoms. In the ninth Ga site, Ga(9) is bonded to four equivalent Er(3), four equivalent Pt(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form face-sharing GaEr4Ga4Pt4 cuboctahedra. is represented by the CIF card [CIF]
data_Er6Ga17Pt5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.241
_cell_length_b   8.150
_cell_length_c   16.182
_cell_angle_alpha   107.525
_cell_angle_beta   82.470
_cell_angle_gamma   105.082
_symmetry_Int_Tables_number   1
_cell_volume   514.236
_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
  Er  Er0  1  0.250  0.752  0.253  1.0
  Er  Er1  1  0.750  0.248  0.747  1.0
  Er  Er2  1  0.410  0.229  0.409  1.0
  Er  Er3  1  0.902  0.709  0.905  1.0
  Er  Er4  1  0.098  0.291  0.095  1.0
  Er  Er5  1  0.590  0.771  0.591  1.0
  Ga  Ga6  1  0.174  0.806  0.457  1.0
  Ga  Ga7  1  0.678  0.316  0.960  1.0
  Ga  Ga8  1  0.322  0.684  0.040  1.0
  Ga  Ga9  1  0.826  0.194  0.543  1.0
  Ga  Ga10  1  0.461  0.098  0.177  1.0
  Ga  Ga11  1  0.958  0.590  0.675  1.0
  Ga  Ga12  1  0.042  0.410  0.325  1.0
  Ga  Ga13  1  0.539  0.902  0.823  1.0
  Ga  Ga14  1  0.737  0.582  0.108  1.0
  Ga  Ga15  1  0.231  0.065  0.604  1.0
  Ga  Ga16  1  0.769  0.935  0.396  1.0
  Ga  Ga17  1  0.263  0.418  0.892  1.0
  Ga  Ga18  1  0.607  0.446  0.233  1.0
  Ga  Ga19  1  0.104  0.943  0.735  1.0
  Ga  Ga20  1  0.896  0.057  0.265  1.0
  Ga  Ga21  1  0.393  0.554  0.767  1.0
  Ga  Ga22  1  0.500  0.000  0.000  1.0
  Pt  Pt23  1  0.904  0.906  0.097  1.0
  Pt  Pt24  1  0.395  0.395  0.604  1.0
  Pt  Pt25  1  0.605  0.605  0.396  1.0
  Pt  Pt26  1  0.096  0.094  0.903  1.0
  Pt  Pt27  1  0.000  0.500  0.500  1.0
[/CIF]
.
The compound described by Er6Pt5Ga17 crystallizes in the monoclinic C2/m space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 12-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), one Ga(4), two equivalent Ga(5), two equivalent Ga(6), two equivalent Ga(7), and two equivalent Ga(8) atoms. In the second Er site, Er(2) is bonded in a 12-coordinate geometry to two equivalent Pt(2), two equivalent Pt(3), one Ga(3), two equivalent Ga(1), two equivalent Ga(4), two equivalent Ga(6), and two equivalent Ga(8) atoms. In the third Er site, Er(3) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(7), two equivalent Ga(9), and three equivalent Ga(2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 10-coordinate geometry to two equivalent Er(3), one Ga(5), one Ga(8), two equivalent Ga(2), two equivalent Ga(3), and two equivalent Ga(9) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to two equivalent Er(2), one Ga(6), one Ga(7), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the third Pt site, Pt(3) is bonded in a 8-coordinate geometry to four equivalent Er(2), two equivalent Ga(1), and two equivalent Ga(4) atoms. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Er(1), two equivalent Er(2), one Pt(3), two equivalent Pt(2), and three equivalent Ga(6) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Er(1), three equivalent Er(3), two equivalent Pt(1), one Ga(9), and three equivalent Ga(5) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Er(1), one Er(2), two equivalent Er(3), two equivalent Pt(1), one Ga(7), one Ga(9), and two equivalent Ga(8) atoms. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to one Er(1), two equivalent Er(2), one Pt(3), two equivalent Pt(2), one Ga(8), and two equivalent Ga(7) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Pt(1), one Ga(7), and three equivalent Ga(2) atoms. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(2), one Pt(2), one Ga(8), and three equivalent Ga(1) atoms. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Pt(2), one Ga(3), one Ga(5), and two equivalent Ga(4) atoms. In the eighth Ga site, Ga(8) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(2), one Pt(1), one Ga(4), one Ga(6), and two equivalent Ga(3) atoms. In the ninth Ga site, Ga(9) is bonded to four equivalent Er(3), four equivalent Pt(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form face-sharing GaEr4Ga4Pt4 cuboctahedra. is represented by the CIF card [CIF]
data_Er6Ga17Pt5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.241
_cell_length_b   8.150
_cell_length_c   16.182
_cell_angle_alpha   107.525
_cell_angle_beta   82.470
_cell_angle_gamma   105.082
_symmetry_Int_Tables_number   1
_cell_volume   514.236
_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
  Er  Er0  1  0.250  0.752  0.253  1.0
  Er  Er1  1  0.750  0.248  0.747  1.0
  Er  Er2  1  0.410  0.229  0.409  1.0
  Er  Er3  1  0.902  0.709  0.905  1.0
  Er  Er4  1  0.098  0.291  0.095  1.0
  Er  Er5  1  0.590  0.771  0.591  1.0
  Ga  Ga6  1  0.174  0.806  0.457  1.0
  Ga  Ga7  1  0.678  0.316  0.960  1.0
  Ga  Ga8  1  0.322  0.684  0.040  1.0
  Ga  Ga9  1  0.826  0.194  0.543  1.0
  Ga  Ga10  1  0.461  0.098  0.177  1.0
  Ga  Ga11  1  0.958  0.590  0.675  1.0
  Ga  Ga12  1  0.042  0.410  0.325  1.0
  Ga  Ga13  1  0.539  0.902  0.823  1.0
  Ga  Ga14  1  0.737  0.582  0.108  1.0
  Ga  Ga15  1  0.231  0.065  0.604  1.0
  Ga  Ga16  1  0.769  0.935  0.396  1.0
  Ga  Ga17  1  0.263  0.418  0.892  1.0
  Ga  Ga18  1  0.607  0.446  0.233  1.0
  Ga  Ga19  1  0.104  0.943  0.735  1.0
  Ga  Ga20  1  0.896  0.057  0.265  1.0
  Ga  Ga21  1  0.393  0.554  0.767  1.0
  Ga  Ga22  1  0.500  0.000  0.000  1.0
  Pt  Pt23  1  0.904  0.906  0.097  1.0
  Pt  Pt24  1  0.395  0.395  0.604  1.0
  Pt  Pt25  1  0.605  0.605  0.396  1.0
  Pt  Pt26  1  0.096  0.094  0.903  1.0
  Pt  Pt27  1  0.000  0.500  0.500  1.0
[/CIF]
.