The crystal structure described by Cr3Ga4 crystallizes in the monoclinic C2/m space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a cuboctahedral geometry to four equivalent Cr(4), two equivalent Ga(1), two equivalent Ga(2), and four equivalent Ga(3) atoms. In the second Cr site, Cr(2) is bonded in a 7-coordinate geometry to one Cr(3), one Ga(1), two equivalent Ga(3), and four equivalent Ga(4) atoms. In the third Cr site, Cr(3) is bonded in a 11-coordinate geometry to one Cr(2), two equivalent Cr(4), two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(4) atoms. In the fourth Cr site, Cr(4) is bonded in a 9-coordinate geometry to one Cr(1), one Cr(3), one Ga(2), one Ga(4), two equivalent Ga(1), and three equivalent Ga(3) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to one Cr(1), one Cr(2), and four equivalent Cr(4) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Cr(1), two equivalent Cr(3), two equivalent Cr(4), one Ga(2), two equivalent Ga(3), and two equivalent Ga(4) atoms. In the third Ga site, Ga(3) is bonded in a 6-coordinate geometry to one Cr(1), one Cr(2), one Cr(3), three equivalent Cr(4), and one Ga(2) atom. In the fourth Ga site, Ga(4) is bonded in a 6-coordinate geometry to one Cr(4), two equivalent Cr(2), two equivalent Cr(3), one Ga(2), and one Ga(4) atom. is represented by the CIF file [CIF]
data_Cr3Ga4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.381
_cell_length_b   6.381
_cell_length_c   7.866
_cell_angle_alpha   78.386
_cell_angle_beta   78.386
_cell_angle_gamma   75.994
_symmetry_Int_Tables_number   1
_cell_volume   300.478
_cell_formula_units_Z   3
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
  Cr  Cr0  1  0.000  0.000  0.000  1.0
  Cr  Cr1  1  0.506  0.506  0.662  1.0
  Cr  Cr2  1  0.494  0.494  0.338  1.0
  Cr  Cr3  1  0.230  0.230  0.339  1.0
  Cr  Cr4  1  0.770  0.770  0.661  1.0
  Cr  Cr5  1  0.961  0.332  0.143  1.0
  Cr  Cr6  1  0.668  0.039  0.857  1.0
  Cr  Cr7  1  0.039  0.668  0.857  1.0
  Cr  Cr8  1  0.332  0.961  0.143  1.0
  Ga  Ga9  1  0.287  0.287  0.902  1.0
  Ga  Ga10  1  0.713  0.713  0.098  1.0
  Ga  Ga11  1  0.048  0.048  0.648  1.0
  Ga  Ga12  1  0.952  0.952  0.352  1.0
  Ga  Ga13  1  0.388  0.811  0.845  1.0
  Ga  Ga14  1  0.189  0.612  0.155  1.0
  Ga  Ga15  1  0.612  0.189  0.155  1.0
  Ga  Ga16  1  0.811  0.388  0.845  1.0
  Ga  Ga17  1  0.152  0.544  0.559  1.0
  Ga  Ga18  1  0.456  0.848  0.441  1.0
  Ga  Ga19  1  0.848  0.456  0.441  1.0
  Ga  Ga20  1  0.544  0.152  0.559  1.0
[/CIF]
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The crystal structure described by Cr3Ga4 crystallizes in the monoclinic C2/m space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a cuboctahedral geometry to four equivalent Cr(4), two equivalent Ga(1), two equivalent Ga(2), and four equivalent Ga(3) atoms. In the second Cr site, Cr(2) is bonded in a 7-coordinate geometry to one Cr(3), one Ga(1), two equivalent Ga(3), and four equivalent Ga(4) atoms. In the third Cr site, Cr(3) is bonded in a 11-coordinate geometry to one Cr(2), two equivalent Cr(4), two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(4) atoms. In the fourth Cr site, Cr(4) is bonded in a 9-coordinate geometry to one Cr(1), one Cr(3), one Ga(2), one Ga(4), two equivalent Ga(1), and three equivalent Ga(3) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to one Cr(1), one Cr(2), and four equivalent Cr(4) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Cr(1), two equivalent Cr(3), two equivalent Cr(4), one Ga(2), two equivalent Ga(3), and two equivalent Ga(4) atoms. In the third Ga site, Ga(3) is bonded in a 6-coordinate geometry to one Cr(1), one Cr(2), one Cr(3), three equivalent Cr(4), and one Ga(2) atom. In the fourth Ga site, Ga(4) is bonded in a 6-coordinate geometry to one Cr(4), two equivalent Cr(2), two equivalent Cr(3), one Ga(2), and one Ga(4) atom. is represented by the CIF file [CIF]
data_Cr3Ga4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.381
_cell_length_b   6.381
_cell_length_c   7.866
_cell_angle_alpha   78.386
_cell_angle_beta   78.386
_cell_angle_gamma   75.994
_symmetry_Int_Tables_number   1
_cell_volume   300.478
_cell_formula_units_Z   3
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
  Cr  Cr0  1  0.000  0.000  0.000  1.0
  Cr  Cr1  1  0.506  0.506  0.662  1.0
  Cr  Cr2  1  0.494  0.494  0.338  1.0
  Cr  Cr3  1  0.230  0.230  0.339  1.0
  Cr  Cr4  1  0.770  0.770  0.661  1.0
  Cr  Cr5  1  0.961  0.332  0.143  1.0
  Cr  Cr6  1  0.668  0.039  0.857  1.0
  Cr  Cr7  1  0.039  0.668  0.857  1.0
  Cr  Cr8  1  0.332  0.961  0.143  1.0
  Ga  Ga9  1  0.287  0.287  0.902  1.0
  Ga  Ga10  1  0.713  0.713  0.098  1.0
  Ga  Ga11  1  0.048  0.048  0.648  1.0
  Ga  Ga12  1  0.952  0.952  0.352  1.0
  Ga  Ga13  1  0.388  0.811  0.845  1.0
  Ga  Ga14  1  0.189  0.612  0.155  1.0
  Ga  Ga15  1  0.612  0.189  0.155  1.0
  Ga  Ga16  1  0.811  0.388  0.845  1.0
  Ga  Ga17  1  0.152  0.544  0.559  1.0
  Ga  Ga18  1  0.456  0.848  0.441  1.0
  Ga  Ga19  1  0.848  0.456  0.441  1.0
  Ga  Ga20  1  0.544  0.152  0.559  1.0
[/CIF]
.