The material described by RuSi2 crystallizes in the orthorhombic Cmce space group. There are two 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 8-coordinate geometry to four equivalent Si(1) and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to two equivalent Ru(1), two equivalent Ru(2), two equivalent Si(1), and three equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Ru(1), two equivalent Ru(2), two equivalent Si(2), and three equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Si2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.482
_cell_length_b   6.482
_cell_length_c   8.177
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   102.961
_symmetry_Int_Tables_number   1
_cell_volume   334.772
_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  0.095  0.350  0.556  1.0
  Si  Si1  1  0.595  0.850  0.944  1.0
  Si  Si2  1  0.650  0.905  0.444  1.0
  Si  Si3  1  0.178  0.924  0.275  1.0
  Si  Si4  1  0.424  0.678  0.225  1.0
  Si  Si5  1  0.678  0.424  0.225  1.0
  Si  Si6  1  0.350  0.095  0.556  1.0
  Si  Si7  1  0.822  0.076  0.725  1.0
  Si  Si8  1  0.924  0.178  0.275  1.0
  Si  Si9  1  0.076  0.822  0.725  1.0
  Si  Si10  1  0.405  0.150  0.056  1.0
  Si  Si11  1  0.576  0.322  0.775  1.0
  Si  Si12  1  0.322  0.576  0.775  1.0
  Si  Si13  1  0.150  0.405  0.056  1.0
  Si  Si14  1  0.850  0.595  0.944  1.0
  Si  Si15  1  0.905  0.650  0.444  1.0
  Ru  Ru16  1  0.285  0.715  0.500  1.0
  Ru  Ru17  1  0.215  0.785  0.000  1.0
  Ru  Ru18  1  0.311  0.311  0.317  1.0
  Ru  Ru19  1  0.715  0.285  0.500  1.0
  Ru  Ru20  1  0.811  0.811  0.183  1.0
  Ru  Ru21  1  0.689  0.689  0.683  1.0
  Ru  Ru22  1  0.785  0.215  0.000  1.0
  Ru  Ru23  1  0.189  0.189  0.817  1.0
[/CIF]
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The material described by RuSi2 crystallizes in the orthorhombic Cmce space group. There are two 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 8-coordinate geometry to four equivalent Si(1) and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to two equivalent Ru(1), two equivalent Ru(2), two equivalent Si(1), and three equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Ru(1), two equivalent Ru(2), two equivalent Si(2), and three equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Si2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.482
_cell_length_b   6.482
_cell_length_c   8.177
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   102.961
_symmetry_Int_Tables_number   1
_cell_volume   334.772
_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  0.095  0.350  0.556  1.0
  Si  Si1  1  0.595  0.850  0.944  1.0
  Si  Si2  1  0.650  0.905  0.444  1.0
  Si  Si3  1  0.178  0.924  0.275  1.0
  Si  Si4  1  0.424  0.678  0.225  1.0
  Si  Si5  1  0.678  0.424  0.225  1.0
  Si  Si6  1  0.350  0.095  0.556  1.0
  Si  Si7  1  0.822  0.076  0.725  1.0
  Si  Si8  1  0.924  0.178  0.275  1.0
  Si  Si9  1  0.076  0.822  0.725  1.0
  Si  Si10  1  0.405  0.150  0.056  1.0
  Si  Si11  1  0.576  0.322  0.775  1.0
  Si  Si12  1  0.322  0.576  0.775  1.0
  Si  Si13  1  0.150  0.405  0.056  1.0
  Si  Si14  1  0.850  0.595  0.944  1.0
  Si  Si15  1  0.905  0.650  0.444  1.0
  Ru  Ru16  1  0.285  0.715  0.500  1.0
  Ru  Ru17  1  0.215  0.785  0.000  1.0
  Ru  Ru18  1  0.311  0.311  0.317  1.0
  Ru  Ru19  1  0.715  0.285  0.500  1.0
  Ru  Ru20  1  0.811  0.811  0.183  1.0
  Ru  Ru21  1  0.689  0.689  0.683  1.0
  Ru  Ru22  1  0.785  0.215  0.000  1.0
  Ru  Ru23  1  0.189  0.189  0.817  1.0
[/CIF]
.