The structure described by Er2NiGa3 crystallizes in the monoclinic Cm space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 12-coordinate geometry to three equivalent Ni(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. In the second Er site, Er(2) is bonded in a 12-coordinate geometry to three equivalent Ni(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. Ni(1) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), one Ga(1), one Ga(3), and two equivalent Ga(2) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), one Ni(1), one Ga(2), and two equivalent Ga(3) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), two equivalent Ni(1), one Ga(1), and one Ga(3) atom. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), one Ni(1), one Ga(2), and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Er2Ga3Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.468
_cell_length_b   5.468
_cell_length_c   6.976
_cell_angle_alpha   51.385
_cell_angle_beta   51.385
_cell_angle_gamma   46.074
_symmetry_Int_Tables_number   1
_cell_volume   110.409
_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  0.461  0.461  0.291  1.0
  Er  Er1  1  0.545  0.545  0.705  1.0
  Ga  Ga2  1  0.148  0.148  0.316  1.0
  Ga  Ga3  1  0.176  0.176  0.876  1.0
  Ga  Ga4  1  0.837  0.837  0.094  1.0
  Ni  Ni5  1  0.832  0.832  0.718  1.0
[/CIF]
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The structure described by Er2NiGa3 crystallizes in the monoclinic Cm space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 12-coordinate geometry to three equivalent Ni(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. In the second Er site, Er(2) is bonded in a 12-coordinate geometry to three equivalent Ni(1), three equivalent Ga(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. Ni(1) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), one Ga(1), one Ga(3), and two equivalent Ga(2) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), one Ni(1), one Ga(2), and two equivalent Ga(3) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), two equivalent Ni(1), one Ga(1), and one Ga(3) atom. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to three equivalent Er(1), three equivalent Er(2), one Ni(1), one Ga(2), and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Er2Ga3Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.468
_cell_length_b   5.468
_cell_length_c   6.976
_cell_angle_alpha   51.385
_cell_angle_beta   51.385
_cell_angle_gamma   46.074
_symmetry_Int_Tables_number   1
_cell_volume   110.409
_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  0.461  0.461  0.291  1.0
  Er  Er1  1  0.545  0.545  0.705  1.0
  Ga  Ga2  1  0.148  0.148  0.316  1.0
  Ga  Ga3  1  0.176  0.176  0.876  1.0
  Ga  Ga4  1  0.837  0.837  0.094  1.0
  Ni  Ni5  1  0.832  0.832  0.718  1.0
[/CIF]
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