The crystal structure described by Y3Cu2Ga9 crystallizes in the orthorhombic Immm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to two equivalent Cu(1), two equivalent Ga(3), four equivalent Ga(1), and four equivalent Ga(2) atoms. In the second Y site, Y(2) is bonded to four equivalent Cu(1), four equivalent Ga(2), and eight equivalent Ga(1) atoms to form distorted YGa12Cu4 cuboctahedra that share corners with four equivalent Ga(3)Y4Ga4Cu4 cuboctahedra, faces with two equivalent Y(2)Ga12Cu4 cuboctahedra, and faces with two equivalent Ga(3)Y4Ga4Cu4 cuboctahedra. Cu(1) is bonded in a 12-coordinate geometry to two equivalent Y(1), two equivalent Y(2), two equivalent Ga(1), two equivalent Ga(3), and four equivalent Ga(2) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), one Cu(1), one Ga(1), and three equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to one Y(2), two equivalent Y(1), two equivalent Cu(1), one Ga(3), and three equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded to four equivalent Y(1), four equivalent Cu(1), and four equivalent Ga(2) atoms to form GaY4Ga4Cu4 cuboctahedra that share corners with four equivalent Y(2)Ga12Cu4 cuboctahedra, faces with two equivalent Y(2)Ga12Cu4 cuboctahedra, and faces with two equivalent Ga(3)Y4Ga4Cu4 cuboctahedra. is represented by the CIF file [CIF]
data_Y3Ga9Cu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.088
_cell_length_b   8.088
_cell_length_c   8.088
_cell_angle_alpha   150.202
_cell_angle_beta   104.823
_cell_angle_gamma   82.899
_symmetry_Int_Tables_number   1
_cell_volume   248.783
_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
  Y  Y0  1  0.319  0.319  0.000  1.0
  Y  Y1  1  0.681  0.681  0.000  1.0
  Y  Y2  1  0.000  0.000  0.000  1.0
  Ga  Ga3  1  0.710  0.338  0.372  1.0
  Ga  Ga4  1  0.290  0.662  0.628  1.0
  Ga  Ga5  1  0.966  0.338  0.628  1.0
  Ga  Ga6  1  0.034  0.662  0.372  1.0
  Ga  Ga7  1  0.408  0.130  0.278  1.0
  Ga  Ga8  1  0.592  0.870  0.722  1.0
  Ga  Ga9  1  0.853  0.130  0.722  1.0
  Ga  Ga10  1  0.147  0.870  0.278  1.0
  Ga  Ga11  1  0.500  0.000  0.500  1.0
  Cu  Cu12  1  0.720  0.500  0.220  1.0
  Cu  Cu13  1  0.280  0.500  0.780  1.0
[/CIF]
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The crystal structure described by Y3Cu2Ga9 crystallizes in the orthorhombic Immm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to two equivalent Cu(1), two equivalent Ga(3), four equivalent Ga(1), and four equivalent Ga(2) atoms. In the second Y site, Y(2) is bonded to four equivalent Cu(1), four equivalent Ga(2), and eight equivalent Ga(1) atoms to form distorted YGa12Cu4 cuboctahedra that share corners with four equivalent Ga(3)Y4Ga4Cu4 cuboctahedra, faces with two equivalent Y(2)Ga12Cu4 cuboctahedra, and faces with two equivalent Ga(3)Y4Ga4Cu4 cuboctahedra. Cu(1) is bonded in a 12-coordinate geometry to two equivalent Y(1), two equivalent Y(2), two equivalent Ga(1), two equivalent Ga(3), and four equivalent Ga(2) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), one Cu(1), one Ga(1), and three equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to one Y(2), two equivalent Y(1), two equivalent Cu(1), one Ga(3), and three equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded to four equivalent Y(1), four equivalent Cu(1), and four equivalent Ga(2) atoms to form GaY4Ga4Cu4 cuboctahedra that share corners with four equivalent Y(2)Ga12Cu4 cuboctahedra, faces with two equivalent Y(2)Ga12Cu4 cuboctahedra, and faces with two equivalent Ga(3)Y4Ga4Cu4 cuboctahedra. is represented by the CIF file [CIF]
data_Y3Ga9Cu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.088
_cell_length_b   8.088
_cell_length_c   8.088
_cell_angle_alpha   150.202
_cell_angle_beta   104.823
_cell_angle_gamma   82.899
_symmetry_Int_Tables_number   1
_cell_volume   248.783
_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
  Y  Y0  1  0.319  0.319  0.000  1.0
  Y  Y1  1  0.681  0.681  0.000  1.0
  Y  Y2  1  0.000  0.000  0.000  1.0
  Ga  Ga3  1  0.710  0.338  0.372  1.0
  Ga  Ga4  1  0.290  0.662  0.628  1.0
  Ga  Ga5  1  0.966  0.338  0.628  1.0
  Ga  Ga6  1  0.034  0.662  0.372  1.0
  Ga  Ga7  1  0.408  0.130  0.278  1.0
  Ga  Ga8  1  0.592  0.870  0.722  1.0
  Ga  Ga9  1  0.853  0.130  0.722  1.0
  Ga  Ga10  1  0.147  0.870  0.278  1.0
  Ga  Ga11  1  0.500  0.000  0.500  1.0
  Cu  Cu12  1  0.720  0.500  0.220  1.0
  Cu  Cu13  1  0.280  0.500  0.780  1.0
[/CIF]
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