The material structure described by Tm3Ga2 crystallizes in the tetragonal I4/mcm space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 4-coordinate geometry to two equivalent Ga(3) and four equivalent Ga(4) atoms. In the second Tm site, Tm(2) is bonded in a 5-coordinate geometry to two equivalent Ga(4) and three equivalent Ga(3) atoms. In the third Tm site, Tm(3) is bonded in a 6-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), and three equivalent Ga(4) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 8-coordinate geometry to eight equivalent Tm(3) atoms. In the second Ga site, Ga(2) is bonded in a body-centered cubic geometry to eight equivalent Tm(3) atoms. In the third Ga site, Ga(3) is bonded in a 9-coordinate geometry to two equivalent Tm(1), three equivalent Tm(2), and four equivalent Tm(3) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Tm(2), two equivalent Tm(1), six equivalent Tm(3), and one Ga(4) atom. is represented by the CIF file [CIF]
data_Tm3Ga2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.855
_cell_length_b   10.855
_cell_length_c   10.855
_cell_angle_alpha   95.816
_cell_angle_beta   116.701
_cell_angle_gamma   116.701
_symmetry_Int_Tables_number   1
_cell_volume   944.250
_cell_formula_units_Z   8
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
  Tm  Tm0  1  0.500  0.854  0.354  1.0
  Tm  Tm1  1  0.500  0.354  0.854  1.0
  Tm  Tm2  1  0.500  0.146  0.646  1.0
  Tm  Tm3  1  0.500  0.646  0.146  1.0
  Tm  Tm4  1  0.162  0.331  0.831  1.0
  Tm  Tm5  1  0.838  0.669  0.169  1.0
  Tm  Tm6  1  0.500  0.169  0.331  1.0
  Tm  Tm7  1  0.500  0.831  0.669  1.0
  Tm  Tm8  1  0.730  0.569  0.433  1.0
  Tm  Tm9  1  0.270  0.703  0.839  1.0
  Tm  Tm10  1  0.864  0.203  0.933  1.0
  Tm  Tm11  1  0.136  0.069  0.339  1.0
  Tm  Tm12  1  0.864  0.433  0.703  1.0
  Tm  Tm13  1  0.136  0.839  0.569  1.0
  Tm  Tm14  1  0.730  0.933  0.069  1.0
  Tm  Tm15  1  0.270  0.339  0.203  1.0
  Tm  Tm16  1  0.270  0.431  0.567  1.0
  Tm  Tm17  1  0.730  0.297  0.161  1.0
  Tm  Tm18  1  0.136  0.797  0.067  1.0
  Tm  Tm19  1  0.864  0.931  0.661  1.0
  Tm  Tm20  1  0.136  0.567  0.297  1.0
  Tm  Tm21  1  0.864  0.161  0.431  1.0
  Tm  Tm22  1  0.270  0.067  0.931  1.0
  Tm  Tm23  1  0.730  0.661  0.797  1.0
  Ga  Ga24  1  0.000  0.750  0.750  1.0
  Ga  Ga25  1  0.000  0.250  0.250  1.0
  Ga  Ga26  1  0.000  0.500  0.500  1.0
  Ga  Ga27  1  0.000  0.000  0.000  1.0
  Ga  Ga28  1  0.263  0.882  0.382  1.0
  Ga  Ga29  1  0.737  0.118  0.618  1.0
  Ga  Ga30  1  0.500  0.618  0.882  1.0
  Ga  Ga31  1  0.500  0.382  0.118  1.0
  Ga  Ga32  1  0.145  0.122  0.622  1.0
  Ga  Ga33  1  0.855  0.477  0.977  1.0
  Ga  Ga34  1  0.500  0.977  0.122  1.0
  Ga  Ga35  1  0.500  0.622  0.477  1.0
  Ga  Ga36  1  0.855  0.878  0.378  1.0
  Ga  Ga37  1  0.145  0.523  0.023  1.0
  Ga  Ga38  1  0.500  0.023  0.878  1.0
  Ga  Ga39  1  0.500  0.378  0.523  1.0
[/CIF]
.
The material structure described by Tm3Ga2 crystallizes in the tetragonal I4/mcm space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 4-coordinate geometry to two equivalent Ga(3) and four equivalent Ga(4) atoms. In the second Tm site, Tm(2) is bonded in a 5-coordinate geometry to two equivalent Ga(4) and three equivalent Ga(3) atoms. In the third Tm site, Tm(3) is bonded in a 6-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), and three equivalent Ga(4) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 8-coordinate geometry to eight equivalent Tm(3) atoms. In the second Ga site, Ga(2) is bonded in a body-centered cubic geometry to eight equivalent Tm(3) atoms. In the third Ga site, Ga(3) is bonded in a 9-coordinate geometry to two equivalent Tm(1), three equivalent Tm(2), and four equivalent Tm(3) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Tm(2), two equivalent Tm(1), six equivalent Tm(3), and one Ga(4) atom. is represented by the CIF file [CIF]
data_Tm3Ga2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.855
_cell_length_b   10.855
_cell_length_c   10.855
_cell_angle_alpha   95.816
_cell_angle_beta   116.701
_cell_angle_gamma   116.701
_symmetry_Int_Tables_number   1
_cell_volume   944.250
_cell_formula_units_Z   8
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
  Tm  Tm0  1  0.500  0.854  0.354  1.0
  Tm  Tm1  1  0.500  0.354  0.854  1.0
  Tm  Tm2  1  0.500  0.146  0.646  1.0
  Tm  Tm3  1  0.500  0.646  0.146  1.0
  Tm  Tm4  1  0.162  0.331  0.831  1.0
  Tm  Tm5  1  0.838  0.669  0.169  1.0
  Tm  Tm6  1  0.500  0.169  0.331  1.0
  Tm  Tm7  1  0.500  0.831  0.669  1.0
  Tm  Tm8  1  0.730  0.569  0.433  1.0
  Tm  Tm9  1  0.270  0.703  0.839  1.0
  Tm  Tm10  1  0.864  0.203  0.933  1.0
  Tm  Tm11  1  0.136  0.069  0.339  1.0
  Tm  Tm12  1  0.864  0.433  0.703  1.0
  Tm  Tm13  1  0.136  0.839  0.569  1.0
  Tm  Tm14  1  0.730  0.933  0.069  1.0
  Tm  Tm15  1  0.270  0.339  0.203  1.0
  Tm  Tm16  1  0.270  0.431  0.567  1.0
  Tm  Tm17  1  0.730  0.297  0.161  1.0
  Tm  Tm18  1  0.136  0.797  0.067  1.0
  Tm  Tm19  1  0.864  0.931  0.661  1.0
  Tm  Tm20  1  0.136  0.567  0.297  1.0
  Tm  Tm21  1  0.864  0.161  0.431  1.0
  Tm  Tm22  1  0.270  0.067  0.931  1.0
  Tm  Tm23  1  0.730  0.661  0.797  1.0
  Ga  Ga24  1  0.000  0.750  0.750  1.0
  Ga  Ga25  1  0.000  0.250  0.250  1.0
  Ga  Ga26  1  0.000  0.500  0.500  1.0
  Ga  Ga27  1  0.000  0.000  0.000  1.0
  Ga  Ga28  1  0.263  0.882  0.382  1.0
  Ga  Ga29  1  0.737  0.118  0.618  1.0
  Ga  Ga30  1  0.500  0.618  0.882  1.0
  Ga  Ga31  1  0.500  0.382  0.118  1.0
  Ga  Ga32  1  0.145  0.122  0.622  1.0
  Ga  Ga33  1  0.855  0.477  0.977  1.0
  Ga  Ga34  1  0.500  0.977  0.122  1.0
  Ga  Ga35  1  0.500  0.622  0.477  1.0
  Ga  Ga36  1  0.855  0.878  0.378  1.0
  Ga  Ga37  1  0.145  0.523  0.023  1.0
  Ga  Ga38  1  0.500  0.023  0.878  1.0
  Ga  Ga39  1  0.500  0.378  0.523  1.0
[/CIF]
.