The crystal structure described by Ru2Si3 is Magnesium tetraboride-like structured and crystallizes in the tetragonal P-4c2 space group. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 8-coordinate geometry to four equivalent Si(1) and four equivalent Si(2) atoms. In the second Ru site, Ru(2) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. In the third Ru site, Ru(3) is bonded in a 8-coordinate geometry to two equivalent Si(1) and six equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 5-coordinate geometry to one Ru(2), two equivalent Ru(1), and two equivalent Ru(3) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to one Ru(1), one Ru(2), and three equivalent Ru(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si3Ru2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.570
_cell_length_b   5.570
_cell_length_c   8.865
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   275.078
_cell_formula_units_Z   4
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
  Si  Si0  1  0.829  0.829  0.750  1.0
  Si  Si1  1  0.829  0.171  0.250  1.0
  Si  Si2  1  0.171  0.829  0.250  1.0
  Si  Si3  1  0.171  0.171  0.750  1.0
  Si  Si4  1  0.204  0.644  0.593  1.0
  Si  Si5  1  0.796  0.356  0.593  1.0
  Si  Si6  1  0.644  0.796  0.407  1.0
  Si  Si7  1  0.356  0.204  0.407  1.0
  Si  Si8  1  0.204  0.356  0.093  1.0
  Si  Si9  1  0.356  0.796  0.907  1.0
  Si  Si10  1  0.644  0.204  0.907  1.0
  Si  Si11  1  0.796  0.644  0.093  1.0
  Ru  Ru12  1  0.000  0.000  0.500  1.0
  Ru  Ru13  1  0.000  0.000  0.000  1.0
  Ru  Ru14  1  0.500  0.500  0.750  1.0
  Ru  Ru15  1  0.500  0.500  0.250  1.0
  Ru  Ru16  1  0.000  0.500  0.873  1.0
  Ru  Ru17  1  0.500  0.000  0.127  1.0
  Ru  Ru18  1  0.500  0.000  0.627  1.0
  Ru  Ru19  1  0.000  0.500  0.373  1.0
[/CIF]
.
The crystal structure described by Ru2Si3 is Magnesium tetraboride-like structured and crystallizes in the tetragonal P-4c2 space group. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 8-coordinate geometry to four equivalent Si(1) and four equivalent Si(2) atoms. In the second Ru site, Ru(2) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. In the third Ru site, Ru(3) is bonded in a 8-coordinate geometry to two equivalent Si(1) and six equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 5-coordinate geometry to one Ru(2), two equivalent Ru(1), and two equivalent Ru(3) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to one Ru(1), one Ru(2), and three equivalent Ru(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si3Ru2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.570
_cell_length_b   5.570
_cell_length_c   8.865
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   275.078
_cell_formula_units_Z   4
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
  Si  Si0  1  0.829  0.829  0.750  1.0
  Si  Si1  1  0.829  0.171  0.250  1.0
  Si  Si2  1  0.171  0.829  0.250  1.0
  Si  Si3  1  0.171  0.171  0.750  1.0
  Si  Si4  1  0.204  0.644  0.593  1.0
  Si  Si5  1  0.796  0.356  0.593  1.0
  Si  Si6  1  0.644  0.796  0.407  1.0
  Si  Si7  1  0.356  0.204  0.407  1.0
  Si  Si8  1  0.204  0.356  0.093  1.0
  Si  Si9  1  0.356  0.796  0.907  1.0
  Si  Si10  1  0.644  0.204  0.907  1.0
  Si  Si11  1  0.796  0.644  0.093  1.0
  Ru  Ru12  1  0.000  0.000  0.500  1.0
  Ru  Ru13  1  0.000  0.000  0.000  1.0
  Ru  Ru14  1  0.500  0.500  0.750  1.0
  Ru  Ru15  1  0.500  0.500  0.250  1.0
  Ru  Ru16  1  0.000  0.500  0.873  1.0
  Ru  Ru17  1  0.500  0.000  0.127  1.0
  Ru  Ru18  1  0.500  0.000  0.627  1.0
  Ru  Ru19  1  0.000  0.500  0.373  1.0
[/CIF]
.