The compound described by Er3Ni3Ga8 is beta Plutonium-derived structured and crystallizes in the monoclinic Cm space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 14-coordinate geometry to two equivalent Ni(1), two equivalent Ni(3), one Ga(1), one Ga(2), one Ga(3), one Ga(5), two equivalent Ga(4), two equivalent Ga(6), and two equivalent Ga(7) atoms. In the second Er site, Er(2) is bonded in a 14-coordinate geometry to two equivalent Ni(2), one Ga(1), one Ga(2), one Ga(4), one Ga(6), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(7), and two equivalent Ga(8) atoms. In the third Er site, Er(3) is bonded in a 16-coordinate geometry to two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(3), one Ga(3), one Ga(4), one Ga(5), one Ga(6), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(8) atoms. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Ni(3), one Ga(2), one Ga(4), and two equivalent Ga(3) atoms. In the second Ni site, Ni(2) is bonded in a 5-coordinate geometry to two equivalent Er(2), two equivalent Er(3), one Ga(2), one Ga(5), one Ga(8), and two equivalent Ga(6) atoms. In the third Ni site, Ni(3) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Ni(1), one Ga(1), one Ga(6), and two equivalent Ga(5) atoms. There are eight inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 12-coordinate geometry to one Er(1), one Er(2), two equivalent Er(3), one Ni(3), one Ga(8), two equivalent Ga(4), two equivalent Ga(5), and two equivalent Ga(7) atoms. In the second Ga site, Ga(2) is bonded in a 12-coordinate geometry to one Er(1), one Er(2), two equivalent Er(3), one Ni(1), one Ni(2), two equivalent Ga(3), two equivalent Ga(6), and two equivalent Ga(7) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Er(1), one Er(3), two equivalent Er(2), two equivalent Ni(1), one Ga(7), one Ga(8), and two equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Er(2), one Er(3), two equivalent Er(1), one Ni(1), one Ga(7), two equivalent Ga(1), and two equivalent Ga(8) atoms. In the fifth Ga site, Ga(5) is bonded in a 3-coordinate geometry to one Er(1), one Er(3), two equivalent Er(2), one Ni(2), two equivalent Ni(3), one Ga(7), and two equivalent Ga(1) atoms. In the sixth Ga site, Ga(6) is bonded in a 3-coordinate geometry to one Er(2), one Er(3), two equivalent Er(1), one Ni(3), two equivalent Ni(2), one Ga(7), and two equivalent Ga(2) atoms. In the seventh Ga site, Ga(7) is bonded to two equivalent Er(1), two equivalent Er(2), one Ga(3), one Ga(4), one Ga(5), one Ga(6), two equivalent Ga(1), and two equivalent Ga(2) atoms to form distorted face-sharing GaEr4Ga8 cuboctahedra. In the eighth Ga site, Ga(8) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Er(3), one Ni(2), one Ga(1), one Ga(3), and two equivalent Ga(4) atoms. is represented by the CIF card [CIF]
data_Er3Ga8Ni3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.965
_cell_length_b   7.965
_cell_length_c   9.504
_cell_angle_alpha   54.237
_cell_angle_beta   54.237
_cell_angle_gamma   30.010
_symmetry_Int_Tables_number   1
_cell_volume   240.089
_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  0.695  0.695  0.300  1.0
  Er  Er1  1  0.313  0.313  0.684  1.0
  Er  Er2  1  0.991  0.991  0.013  1.0
  Ga  Ga3  1  0.496  0.496  0.715  1.0
  Ga  Ga4  1  0.499  0.499  0.281  1.0
  Ga  Ga5  1  0.846  0.846  0.416  1.0
  Ga  Ga6  1  0.159  0.159  0.565  1.0
  Ga  Ga7  1  0.842  0.842  0.892  1.0
  Ga  Ga8  1  0.160  0.160  0.104  1.0
  Ga  Ga9  1  1.000  1.000  0.499  1.0
  Ga  Ga10  1  0.655  0.655  0.739  1.0
  Ni  Ni11  1  0.342  0.342  0.286  1.0
  Ni  Ni12  1  0.657  0.657  0.982  1.0
  Ni  Ni13  1  0.346  0.346  0.025  1.0
[/CIF]
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The compound described by Er3Ni3Ga8 is beta Plutonium-derived structured and crystallizes in the monoclinic Cm space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 14-coordinate geometry to two equivalent Ni(1), two equivalent Ni(3), one Ga(1), one Ga(2), one Ga(3), one Ga(5), two equivalent Ga(4), two equivalent Ga(6), and two equivalent Ga(7) atoms. In the second Er site, Er(2) is bonded in a 14-coordinate geometry to two equivalent Ni(2), one Ga(1), one Ga(2), one Ga(4), one Ga(6), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(7), and two equivalent Ga(8) atoms. In the third Er site, Er(3) is bonded in a 16-coordinate geometry to two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(3), one Ga(3), one Ga(4), one Ga(5), one Ga(6), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(8) atoms. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Ni(3), one Ga(2), one Ga(4), and two equivalent Ga(3) atoms. In the second Ni site, Ni(2) is bonded in a 5-coordinate geometry to two equivalent Er(2), two equivalent Er(3), one Ga(2), one Ga(5), one Ga(8), and two equivalent Ga(6) atoms. In the third Ni site, Ni(3) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Ni(1), one Ga(1), one Ga(6), and two equivalent Ga(5) atoms. There are eight inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 12-coordinate geometry to one Er(1), one Er(2), two equivalent Er(3), one Ni(3), one Ga(8), two equivalent Ga(4), two equivalent Ga(5), and two equivalent Ga(7) atoms. In the second Ga site, Ga(2) is bonded in a 12-coordinate geometry to one Er(1), one Er(2), two equivalent Er(3), one Ni(1), one Ni(2), two equivalent Ga(3), two equivalent Ga(6), and two equivalent Ga(7) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Er(1), one Er(3), two equivalent Er(2), two equivalent Ni(1), one Ga(7), one Ga(8), and two equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Er(2), one Er(3), two equivalent Er(1), one Ni(1), one Ga(7), two equivalent Ga(1), and two equivalent Ga(8) atoms. In the fifth Ga site, Ga(5) is bonded in a 3-coordinate geometry to one Er(1), one Er(3), two equivalent Er(2), one Ni(2), two equivalent Ni(3), one Ga(7), and two equivalent Ga(1) atoms. In the sixth Ga site, Ga(6) is bonded in a 3-coordinate geometry to one Er(2), one Er(3), two equivalent Er(1), one Ni(3), two equivalent Ni(2), one Ga(7), and two equivalent Ga(2) atoms. In the seventh Ga site, Ga(7) is bonded to two equivalent Er(1), two equivalent Er(2), one Ga(3), one Ga(4), one Ga(5), one Ga(6), two equivalent Ga(1), and two equivalent Ga(2) atoms to form distorted face-sharing GaEr4Ga8 cuboctahedra. In the eighth Ga site, Ga(8) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Er(3), one Ni(2), one Ga(1), one Ga(3), and two equivalent Ga(4) atoms. is represented by the CIF card [CIF]
data_Er3Ga8Ni3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.965
_cell_length_b   7.965
_cell_length_c   9.504
_cell_angle_alpha   54.237
_cell_angle_beta   54.237
_cell_angle_gamma   30.010
_symmetry_Int_Tables_number   1
_cell_volume   240.089
_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  0.695  0.695  0.300  1.0
  Er  Er1  1  0.313  0.313  0.684  1.0
  Er  Er2  1  0.991  0.991  0.013  1.0
  Ga  Ga3  1  0.496  0.496  0.715  1.0
  Ga  Ga4  1  0.499  0.499  0.281  1.0
  Ga  Ga5  1  0.846  0.846  0.416  1.0
  Ga  Ga6  1  0.159  0.159  0.565  1.0
  Ga  Ga7  1  0.842  0.842  0.892  1.0
  Ga  Ga8  1  0.160  0.160  0.104  1.0
  Ga  Ga9  1  1.000  1.000  0.499  1.0
  Ga  Ga10  1  0.655  0.655  0.739  1.0
  Ni  Ni11  1  0.342  0.342  0.286  1.0
  Ni  Ni12  1  0.657  0.657  0.982  1.0
  Ni  Ni13  1  0.346  0.346  0.025  1.0
[/CIF]
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