The compound described by LaOsGa4 crystallizes in the orthorhombic Pmma space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 16-coordinate geometry to four equivalent Os(1), two equivalent Ga(4), two equivalent Ga(6), four equivalent Ga(1), and four equivalent Ga(5) atoms. In the second La site, La(2) is bonded in a 10-coordinate geometry to one Ga(2), one Ga(4), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(6), and four equivalent Ga(1) atoms. There are two inequivalent Os sites. In the first Os site, Os(2) is bonded in a 8-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. In the second Os site, Os(1) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(4), and two equivalent Ga(5) atoms. There are six inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one La(1), two equivalent La(2), one Os(1), one Os(2), one Ga(2), one Ga(3), one Ga(4), and one Ga(6) atom. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to two equivalent La(2), two equivalent Os(2), two equivalent Ga(4), and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to two equivalent La(2), one Os(2), two equivalent Os(1), one Ga(3), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one La(1), one La(2), two equivalent Os(1), one Ga(2), one Ga(4), two equivalent Ga(1), and two equivalent Ga(3) atoms. In the fifth Ga site, Ga(5) is bonded in a 5-coordinate geometry to two equivalent La(1), two equivalent La(2), two equivalent Os(1), and one Ga(6) atom. In the sixth Ga site, Ga(6) is bonded to two equivalent La(1), four equivalent La(2), two equivalent Ga(5), and four equivalent Ga(1) atoms to form face-sharing GaLa6Ga6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaGa4Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.697
_cell_length_b   8.823
_cell_length_c   9.800
_cell_angle_alpha   90.000
_cell_angle_beta   90.001
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   665.511
_cell_formula_units_Z   6
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
  La  La0  1  0.322  0.500  0.750  1.0
  La  La1  1  0.678  0.500  0.250  1.0
  La  La2  1  0.839  0.250  0.750  1.0
  La  La3  1  0.161  0.750  0.250  1.0
  La  La4  1  0.839  0.750  0.750  1.0
  La  La5  1  0.161  0.250  0.250  1.0
  Ga  Ga6  1  0.182  0.232  0.574  1.0
  Ga  Ga7  1  0.818  0.768  0.426  1.0
  Ga  Ga8  1  0.182  0.768  0.925  1.0
  Ga  Ga9  1  0.818  0.232  0.426  1.0
  Ga  Ga10  1  0.818  0.232  0.074  1.0
  Ga  Ga11  1  0.182  0.768  0.574  1.0
  Ga  Ga12  1  0.818  0.768  0.074  1.0
  Ga  Ga13  1  0.182  0.232  0.926  1.0
  Ga  Ga14  1  0.132  1.000  0.750  1.0
  Ga  Ga15  1  0.868  0.000  0.250  1.0
  Ga  Ga16  1  0.340  0.000  0.060  1.0
  Ga  Ga17  1  0.660  0.000  0.940  1.0
  Ga  Ga18  1  0.340  0.000  0.440  1.0
  Ga  Ga19  1  0.660  0.000  0.560  1.0
  Ga  Ga20  1  0.451  0.155  0.750  1.0
  Ga  Ga21  1  0.549  0.845  0.250  1.0
  Ga  Ga22  1  0.451  0.845  0.750  1.0
  Ga  Ga23  1  0.549  0.155  0.250  1.0
  Ga  Ga24  1  0.655  0.500  0.580  1.0
  Ga  Ga25  1  0.345  0.500  0.420  1.0
  Ga  Ga26  1  0.655  0.500  0.920  1.0
  Ga  Ga27  1  0.345  0.500  0.080  1.0
  Ga  Ga28  1  0.000  0.500  0.500  1.0
  Ga  Ga29  1  0.000  0.500  1.000  1.0
  Os  Os30  1  0.500  0.256  0.500  1.0
  Os  Os31  1  0.500  0.744  0.500  1.0
  Os  Os32  1  0.500  0.744  1.000  1.0
  Os  Os33  1  0.500  0.256  1.000  1.0
  Os  Os34  1  0.000  0.000  0.500  1.0
  Os  Os35  1  1.000  0.000  1.000  1.0
[/CIF]
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The compound described by LaOsGa4 crystallizes in the orthorhombic Pmma space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 16-coordinate geometry to four equivalent Os(1), two equivalent Ga(4), two equivalent Ga(6), four equivalent Ga(1), and four equivalent Ga(5) atoms. In the second La site, La(2) is bonded in a 10-coordinate geometry to one Ga(2), one Ga(4), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(6), and four equivalent Ga(1) atoms. There are two inequivalent Os sites. In the first Os site, Os(2) is bonded in a 8-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. In the second Os site, Os(1) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(4), and two equivalent Ga(5) atoms. There are six inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one La(1), two equivalent La(2), one Os(1), one Os(2), one Ga(2), one Ga(3), one Ga(4), and one Ga(6) atom. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to two equivalent La(2), two equivalent Os(2), two equivalent Ga(4), and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to two equivalent La(2), one Os(2), two equivalent Os(1), one Ga(3), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one La(1), one La(2), two equivalent Os(1), one Ga(2), one Ga(4), two equivalent Ga(1), and two equivalent Ga(3) atoms. In the fifth Ga site, Ga(5) is bonded in a 5-coordinate geometry to two equivalent La(1), two equivalent La(2), two equivalent Os(1), and one Ga(6) atom. In the sixth Ga site, Ga(6) is bonded to two equivalent La(1), four equivalent La(2), two equivalent Ga(5), and four equivalent Ga(1) atoms to form face-sharing GaLa6Ga6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaGa4Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.697
_cell_length_b   8.823
_cell_length_c   9.800
_cell_angle_alpha   90.000
_cell_angle_beta   90.001
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   665.511
_cell_formula_units_Z   6
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
  La  La0  1  0.322  0.500  0.750  1.0
  La  La1  1  0.678  0.500  0.250  1.0
  La  La2  1  0.839  0.250  0.750  1.0
  La  La3  1  0.161  0.750  0.250  1.0
  La  La4  1  0.839  0.750  0.750  1.0
  La  La5  1  0.161  0.250  0.250  1.0
  Ga  Ga6  1  0.182  0.232  0.574  1.0
  Ga  Ga7  1  0.818  0.768  0.426  1.0
  Ga  Ga8  1  0.182  0.768  0.925  1.0
  Ga  Ga9  1  0.818  0.232  0.426  1.0
  Ga  Ga10  1  0.818  0.232  0.074  1.0
  Ga  Ga11  1  0.182  0.768  0.574  1.0
  Ga  Ga12  1  0.818  0.768  0.074  1.0
  Ga  Ga13  1  0.182  0.232  0.926  1.0
  Ga  Ga14  1  0.132  1.000  0.750  1.0
  Ga  Ga15  1  0.868  0.000  0.250  1.0
  Ga  Ga16  1  0.340  0.000  0.060  1.0
  Ga  Ga17  1  0.660  0.000  0.940  1.0
  Ga  Ga18  1  0.340  0.000  0.440  1.0
  Ga  Ga19  1  0.660  0.000  0.560  1.0
  Ga  Ga20  1  0.451  0.155  0.750  1.0
  Ga  Ga21  1  0.549  0.845  0.250  1.0
  Ga  Ga22  1  0.451  0.845  0.750  1.0
  Ga  Ga23  1  0.549  0.155  0.250  1.0
  Ga  Ga24  1  0.655  0.500  0.580  1.0
  Ga  Ga25  1  0.345  0.500  0.420  1.0
  Ga  Ga26  1  0.655  0.500  0.920  1.0
  Ga  Ga27  1  0.345  0.500  0.080  1.0
  Ga  Ga28  1  0.000  0.500  0.500  1.0
  Ga  Ga29  1  0.000  0.500  1.000  1.0
  Os  Os30  1  0.500  0.256  0.500  1.0
  Os  Os31  1  0.500  0.744  0.500  1.0
  Os  Os32  1  0.500  0.744  1.000  1.0
  Os  Os33  1  0.500  0.256  1.000  1.0
  Os  Os34  1  0.000  0.000  0.500  1.0
  Os  Os35  1  1.000  0.000  1.000  1.0
[/CIF]
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