The crystal structure described by Co3Al3Si4 crystallizes in the cubic Im-3m space group. Co(1) is bonded in a 8-coordinate geometry to four equivalent Al(1) and four equivalent Si(1) atoms. Al(1) is bonded in a 4-coordinate geometry to four equivalent Co(1) atoms. Si(1) is bonded in a 7-coordinate geometry to three equivalent Co(1) and four equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Al3Co3Si4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.954
_cell_length_b   6.954
_cell_length_c   6.954
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   258.869
_cell_formula_units_Z   2
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
  Al  Al0  1  0.500  0.750  0.250  1.0
  Al  Al1  1  0.500  0.250  0.750  1.0
  Al  Al2  1  0.250  0.500  0.750  1.0
  Al  Al3  1  0.750  0.500  0.250  1.0
  Al  Al4  1  0.750  0.250  0.500  1.0
  Al  Al5  1  0.250  0.750  0.500  1.0
  Co  Co6  1  0.000  0.335  0.335  1.0
  Co  Co7  1  0.000  0.665  0.665  1.0
  Co  Co8  1  0.335  0.000  0.335  1.0
  Co  Co9  1  0.665  0.000  0.665  1.0
  Co  Co10  1  0.335  0.335  0.000  1.0
  Co  Co11  1  0.665  0.665  0.000  1.0
  Si  Si12  1  0.322  0.322  0.322  1.0
  Si  Si13  1  0.678  0.678  0.678  1.0
  Si  Si14  1  0.000  0.000  0.678  1.0
  Si  Si15  1  0.000  0.678  0.000  1.0
  Si  Si16  1  0.000  0.000  0.322  1.0
  Si  Si17  1  0.000  0.322  0.000  1.0
  Si  Si18  1  0.678  0.000  0.000  1.0
  Si  Si19  1  0.322  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Co3Al3Si4 crystallizes in the cubic Im-3m space group. Co(1) is bonded in a 8-coordinate geometry to four equivalent Al(1) and four equivalent Si(1) atoms. Al(1) is bonded in a 4-coordinate geometry to four equivalent Co(1) atoms. Si(1) is bonded in a 7-coordinate geometry to three equivalent Co(1) and four equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Al3Co3Si4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.954
_cell_length_b   6.954
_cell_length_c   6.954
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   258.869
_cell_formula_units_Z   2
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
  Al  Al0  1  0.500  0.750  0.250  1.0
  Al  Al1  1  0.500  0.250  0.750  1.0
  Al  Al2  1  0.250  0.500  0.750  1.0
  Al  Al3  1  0.750  0.500  0.250  1.0
  Al  Al4  1  0.750  0.250  0.500  1.0
  Al  Al5  1  0.250  0.750  0.500  1.0
  Co  Co6  1  0.000  0.335  0.335  1.0
  Co  Co7  1  0.000  0.665  0.665  1.0
  Co  Co8  1  0.335  0.000  0.335  1.0
  Co  Co9  1  0.665  0.000  0.665  1.0
  Co  Co10  1  0.335  0.335  0.000  1.0
  Co  Co11  1  0.665  0.665  0.000  1.0
  Si  Si12  1  0.322  0.322  0.322  1.0
  Si  Si13  1  0.678  0.678  0.678  1.0
  Si  Si14  1  0.000  0.000  0.678  1.0
  Si  Si15  1  0.000  0.678  0.000  1.0
  Si  Si16  1  0.000  0.000  0.322  1.0
  Si  Si17  1  0.000  0.322  0.000  1.0
  Si  Si18  1  0.678  0.000  0.000  1.0
  Si  Si19  1  0.322  0.000  0.000  1.0
[/CIF]
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