The crystal structure described by Ru2Si3 is Magnesium tetraboride-like structured and crystallizes in the orthorhombic Pbcn space group. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. In the second Ru site, Ru(2) is bonded in a 8-coordinate geometry to two equivalent Si(1), two equivalent Si(3), and four equivalent Si(2) atoms. In the third Ru site, Ru(3) is bonded in a 7-coordinate geometry to one Si(2), three equivalent Si(1), and three equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to one Ru(1), one Ru(2), three equivalent Ru(3), one Si(1), and one Si(3) atom. In the second Si site, Si(2) is bonded in a 5-coordinate geometry to one Ru(3), two equivalent Ru(1), and two equivalent Ru(2) atoms. In the third Si site, Si(3) is bonded in a 3-coordinate geometry to one Ru(2), three equivalent Ru(3), and one Si(1) atom. is represented by the CIF card [CIF]
data_Si3Ru2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.764
_cell_length_b   8.783
_cell_length_c   11.138
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   563.946
_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
  Si  Si0  1  0.997  0.873  0.462  1.0
  Si  Si1  1  0.497  0.627  0.038  1.0
  Si  Si2  1  0.499  0.503  0.373  1.0
  Si  Si3  1  0.999  0.497  0.373  1.0
  Si  Si4  1  0.003  0.627  0.962  1.0
  Si  Si5  1  0.503  0.873  0.538  1.0
  Si  Si6  1  0.775  0.806  0.728  1.0
  Si  Si7  1  0.501  0.997  0.873  1.0
  Si  Si8  1  0.001  0.503  0.627  1.0
  Si  Si9  1  0.501  0.497  0.627  1.0
  Si  Si10  1  0.725  0.306  0.228  1.0
  Si  Si11  1  0.997  0.373  0.038  1.0
  Si  Si12  1  0.275  0.194  0.728  1.0
  Si  Si13  1  0.001  0.003  0.873  1.0
  Si  Si14  1  0.775  0.306  0.772  1.0
  Si  Si15  1  0.003  0.127  0.538  1.0
  Si  Si16  1  0.275  0.694  0.772  1.0
  Si  Si17  1  0.225  0.194  0.272  1.0
  Si  Si18  1  0.225  0.694  0.228  1.0
  Si  Si19  1  0.725  0.806  0.272  1.0
  Si  Si20  1  0.499  0.003  0.127  1.0
  Si  Si21  1  0.999  0.997  0.127  1.0
  Si  Si22  1  0.497  0.127  0.462  1.0
  Si  Si23  1  0.503  0.373  0.962  1.0
  Ru  Ru24  1  0.250  0.669  0.500  1.0
  Ru  Ru25  1  0.750  0.831  0.000  1.0
  Ru  Ru26  1  0.250  0.344  0.500  1.0
  Ru  Ru27  1  0.864  0.569  0.178  1.0
  Ru  Ru28  1  0.636  0.069  0.678  1.0
  Ru  Ru29  1  0.750  0.656  0.500  1.0
  Ru  Ru30  1  0.136  0.431  0.822  1.0
  Ru  Ru31  1  0.750  0.156  0.000  1.0
  Ru  Ru32  1  0.864  0.069  0.322  1.0
  Ru  Ru33  1  0.250  0.844  0.000  1.0
  Ru  Ru34  1  0.636  0.569  0.822  1.0
  Ru  Ru35  1  0.250  0.169  0.000  1.0
  Ru  Ru36  1  0.364  0.931  0.322  1.0
  Ru  Ru37  1  0.136  0.931  0.678  1.0
  Ru  Ru38  1  0.750  0.331  0.500  1.0
  Ru  Ru39  1  0.364  0.431  0.178  1.0
[/CIF]
.
The crystal structure described by Ru2Si3 is Magnesium tetraboride-like structured and crystallizes in the orthorhombic Pbcn space group. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. In the second Ru site, Ru(2) is bonded in a 8-coordinate geometry to two equivalent Si(1), two equivalent Si(3), and four equivalent Si(2) atoms. In the third Ru site, Ru(3) is bonded in a 7-coordinate geometry to one Si(2), three equivalent Si(1), and three equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to one Ru(1), one Ru(2), three equivalent Ru(3), one Si(1), and one Si(3) atom. In the second Si site, Si(2) is bonded in a 5-coordinate geometry to one Ru(3), two equivalent Ru(1), and two equivalent Ru(2) atoms. In the third Si site, Si(3) is bonded in a 3-coordinate geometry to one Ru(2), three equivalent Ru(3), and one Si(1) atom. is represented by the CIF card [CIF]
data_Si3Ru2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.764
_cell_length_b   8.783
_cell_length_c   11.138
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   563.946
_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
  Si  Si0  1  0.997  0.873  0.462  1.0
  Si  Si1  1  0.497  0.627  0.038  1.0
  Si  Si2  1  0.499  0.503  0.373  1.0
  Si  Si3  1  0.999  0.497  0.373  1.0
  Si  Si4  1  0.003  0.627  0.962  1.0
  Si  Si5  1  0.503  0.873  0.538  1.0
  Si  Si6  1  0.775  0.806  0.728  1.0
  Si  Si7  1  0.501  0.997  0.873  1.0
  Si  Si8  1  0.001  0.503  0.627  1.0
  Si  Si9  1  0.501  0.497  0.627  1.0
  Si  Si10  1  0.725  0.306  0.228  1.0
  Si  Si11  1  0.997  0.373  0.038  1.0
  Si  Si12  1  0.275  0.194  0.728  1.0
  Si  Si13  1  0.001  0.003  0.873  1.0
  Si  Si14  1  0.775  0.306  0.772  1.0
  Si  Si15  1  0.003  0.127  0.538  1.0
  Si  Si16  1  0.275  0.694  0.772  1.0
  Si  Si17  1  0.225  0.194  0.272  1.0
  Si  Si18  1  0.225  0.694  0.228  1.0
  Si  Si19  1  0.725  0.806  0.272  1.0
  Si  Si20  1  0.499  0.003  0.127  1.0
  Si  Si21  1  0.999  0.997  0.127  1.0
  Si  Si22  1  0.497  0.127  0.462  1.0
  Si  Si23  1  0.503  0.373  0.962  1.0
  Ru  Ru24  1  0.250  0.669  0.500  1.0
  Ru  Ru25  1  0.750  0.831  0.000  1.0
  Ru  Ru26  1  0.250  0.344  0.500  1.0
  Ru  Ru27  1  0.864  0.569  0.178  1.0
  Ru  Ru28  1  0.636  0.069  0.678  1.0
  Ru  Ru29  1  0.750  0.656  0.500  1.0
  Ru  Ru30  1  0.136  0.431  0.822  1.0
  Ru  Ru31  1  0.750  0.156  0.000  1.0
  Ru  Ru32  1  0.864  0.069  0.322  1.0
  Ru  Ru33  1  0.250  0.844  0.000  1.0
  Ru  Ru34  1  0.636  0.569  0.822  1.0
  Ru  Ru35  1  0.250  0.169  0.000  1.0
  Ru  Ru36  1  0.364  0.931  0.322  1.0
  Ru  Ru37  1  0.136  0.931  0.678  1.0
  Ru  Ru38  1  0.750  0.331  0.500  1.0
  Ru  Ru39  1  0.364  0.431  0.178  1.0
[/CIF]
.