The structure described by RuSi4P4 crystallizes in the triclinic P1 space group. Ru(1) is bonded to one Si(1), one Si(3), one Si(4), one P(1), one P(2), and one P(4) atom to form RuSi3P3 octahedra that share corners with two equivalent Si(1)P3Ru tetrahedra, corners with two equivalent Si(3)P3Ru tetrahedra, corners with two equivalent Si(4)P3Ru tetrahedra, corners with two equivalent P(2)Si3Ru tetrahedra, corners with two equivalent P(4)Si3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, corners with three equivalent P(3)Si4 tetrahedra, and corners with two equivalent P(1)Si3Ru trigonal pyramids. There are four inequivalent Si sites. In the first Si site, Si(1) is bonded to one Ru(1), one P(1), one P(2), and one P(3) atom to form SiP3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one P(2)Si3Ru tetrahedra,  a cornercorner with one P(4)Si3Ru tetrahedra, corners with three equivalent Si(3)P3Ru tetrahedra, corners with three equivalent Si(4)P3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, and  a cornercorner with one P(1)Si3Ru trigonal pyramid. The corner-sharing octahedral tilt angles range from 50-70°. In the second Si site, Si(2) is bonded to one P(1), one P(2), one P(3), and one P(4) atom to form SiP4 tetrahedra that share corners with three equivalent Ru(1)Si3P3 octahedra, corners with three equivalent Si(1)P3Ru tetrahedra, corners with three equivalent Si(3)P3Ru tetrahedra, and corners with three equivalent Si(4)P3Ru tetrahedra. The corner-sharing octahedral tilt angles range from 54-76°. In the third Si site, Si(3) is bonded to one Ru(1), one P(2), one P(3), and one P(4) atom to form SiP3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one P(2)Si3Ru tetrahedra,  a cornercorner with one P(4)Si3Ru tetrahedra, corners with three equivalent Si(1)P3Ru tetrahedra, corners with three equivalent Si(4)P3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, and  a cornercorner with one P(1)Si3Ru trigonal pyramid. The corner-sharing octahedral tilt angles range from 56-63°. In the fourth Si site, Si(4) is bonded to one Ru(1), one P(1), one P(3), and one P(4) atom to form SiP3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one P(2)Si3Ru tetrahedra,  a cornercorner with one P(4)Si3Ru tetrahedra, corners with three equivalent Si(1)P3Ru tetrahedra, corners with three equivalent Si(3)P3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, and  a cornercorner with one P(1)Si3Ru trigonal pyramid. The corner-sharing octahedral tilt angles range from 62-72°. There are four inequivalent P sites. In the first P site, P(1) is bonded to one Ru(1), one Si(1), one Si(2), and one Si(4) atom to form distorted PSi3Ru trigonal pyramids that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one Si(1)P3Ru tetrahedra,  a cornercorner with one Si(3)P3Ru tetrahedra,  a cornercorner with one Si(4)P3Ru tetrahedra, corners with three equivalent P(2)Si3Ru tetrahedra, corners with three equivalent P(4)Si3Ru tetrahedra, and corners with three equivalent P(3)Si4 tetrahedra. The corner-sharing octahedral tilt angles range from 62-69°. In the second P site, P(2) is bonded to one Ru(1), one Si(1), one Si(2), and one Si(3) atom to form distorted PSi3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one Si(1)P3Ru tetrahedra,  a cornercorner with one Si(3)P3Ru tetrahedra,  a cornercorner with one Si(4)P3Ru tetrahedra, corners with three equivalent P(4)Si3Ru tetrahedra, corners with three equivalent P(3)Si4 tetrahedra, and corners with three equivalent P(1)Si3Ru trigonal pyramids. The corner-sharing octahedral tilt angles range from 52-64°. In the third P site, P(3) is bonded to one Si(1), one Si(2), one Si(3), and one Si(4) atom to form PSi4 tetrahedra that share corners with three equivalent Ru(1)Si3P3 octahedra, corners with three equivalent P(2)Si3Ru tetrahedra, corners with three equivalent P(4)Si3Ru tetrahedra, and corners with three equivalent P(1)Si3Ru trigonal pyramids. The corner-sharing octahedral tilt angles range from 51-73°. In the fourth P site, P(4) is bonded to one Ru(1), one Si(2), one Si(3), and one Si(4) atom to form distorted PSi3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one Si(1)P3Ru tetrahedra,  a cornercorner with one Si(3)P3Ru tetrahedra,  a cornercorner with one Si(4)P3Ru tetrahedra, corners with three equivalent P(2)Si3Ru tetrahedra, corners with three equivalent P(3)Si4 tetrahedra, and corners with three equivalent P(1)Si3Ru trigonal pyramids. The corner-sharing octahedral tilt angles range from 46-68°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si4P4Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.949
_cell_length_b   5.646
_cell_length_c   6.176
_cell_angle_alpha   85.539
_cell_angle_beta   68.267
_cell_angle_gamma   70.679
_symmetry_Int_Tables_number   1
_cell_volume   151.085
_cell_formula_units_Z   1
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  0.670  0.775  0.227  1.0
  Si  Si1  1  0.237  0.344  0.432  1.0
  Si  Si2  1  0.360  0.594  0.880  1.0
  Si  Si3  1  0.844  0.972  0.689  1.0
  P  P4  1  0.161  0.016  0.319  1.0
  P  P5  1  0.620  0.412  0.123  1.0
  P  P6  1  0.767  0.642  0.563  1.0
  P  P7  1  0.342  0.228  0.758  1.0
  Ru  Ru8  1  0.999  0.998  0.999  1.0
[/CIF]
.
The structure described by RuSi4P4 crystallizes in the triclinic P1 space group. Ru(1) is bonded to one Si(1), one Si(3), one Si(4), one P(1), one P(2), and one P(4) atom to form RuSi3P3 octahedra that share corners with two equivalent Si(1)P3Ru tetrahedra, corners with two equivalent Si(3)P3Ru tetrahedra, corners with two equivalent Si(4)P3Ru tetrahedra, corners with two equivalent P(2)Si3Ru tetrahedra, corners with two equivalent P(4)Si3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, corners with three equivalent P(3)Si4 tetrahedra, and corners with two equivalent P(1)Si3Ru trigonal pyramids. There are four inequivalent Si sites. In the first Si site, Si(1) is bonded to one Ru(1), one P(1), one P(2), and one P(3) atom to form SiP3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one P(2)Si3Ru tetrahedra,  a cornercorner with one P(4)Si3Ru tetrahedra, corners with three equivalent Si(3)P3Ru tetrahedra, corners with three equivalent Si(4)P3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, and  a cornercorner with one P(1)Si3Ru trigonal pyramid. The corner-sharing octahedral tilt angles range from 50-70°. In the second Si site, Si(2) is bonded to one P(1), one P(2), one P(3), and one P(4) atom to form SiP4 tetrahedra that share corners with three equivalent Ru(1)Si3P3 octahedra, corners with three equivalent Si(1)P3Ru tetrahedra, corners with three equivalent Si(3)P3Ru tetrahedra, and corners with three equivalent Si(4)P3Ru tetrahedra. The corner-sharing octahedral tilt angles range from 54-76°. In the third Si site, Si(3) is bonded to one Ru(1), one P(2), one P(3), and one P(4) atom to form SiP3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one P(2)Si3Ru tetrahedra,  a cornercorner with one P(4)Si3Ru tetrahedra, corners with three equivalent Si(1)P3Ru tetrahedra, corners with three equivalent Si(4)P3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, and  a cornercorner with one P(1)Si3Ru trigonal pyramid. The corner-sharing octahedral tilt angles range from 56-63°. In the fourth Si site, Si(4) is bonded to one Ru(1), one P(1), one P(3), and one P(4) atom to form SiP3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one P(2)Si3Ru tetrahedra,  a cornercorner with one P(4)Si3Ru tetrahedra, corners with three equivalent Si(1)P3Ru tetrahedra, corners with three equivalent Si(3)P3Ru tetrahedra, corners with three equivalent Si(2)P4 tetrahedra, and  a cornercorner with one P(1)Si3Ru trigonal pyramid. The corner-sharing octahedral tilt angles range from 62-72°. There are four inequivalent P sites. In the first P site, P(1) is bonded to one Ru(1), one Si(1), one Si(2), and one Si(4) atom to form distorted PSi3Ru trigonal pyramids that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one Si(1)P3Ru tetrahedra,  a cornercorner with one Si(3)P3Ru tetrahedra,  a cornercorner with one Si(4)P3Ru tetrahedra, corners with three equivalent P(2)Si3Ru tetrahedra, corners with three equivalent P(4)Si3Ru tetrahedra, and corners with three equivalent P(3)Si4 tetrahedra. The corner-sharing octahedral tilt angles range from 62-69°. In the second P site, P(2) is bonded to one Ru(1), one Si(1), one Si(2), and one Si(3) atom to form distorted PSi3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one Si(1)P3Ru tetrahedra,  a cornercorner with one Si(3)P3Ru tetrahedra,  a cornercorner with one Si(4)P3Ru tetrahedra, corners with three equivalent P(4)Si3Ru tetrahedra, corners with three equivalent P(3)Si4 tetrahedra, and corners with three equivalent P(1)Si3Ru trigonal pyramids. The corner-sharing octahedral tilt angles range from 52-64°. In the third P site, P(3) is bonded to one Si(1), one Si(2), one Si(3), and one Si(4) atom to form PSi4 tetrahedra that share corners with three equivalent Ru(1)Si3P3 octahedra, corners with three equivalent P(2)Si3Ru tetrahedra, corners with three equivalent P(4)Si3Ru tetrahedra, and corners with three equivalent P(1)Si3Ru trigonal pyramids. The corner-sharing octahedral tilt angles range from 51-73°. In the fourth P site, P(4) is bonded to one Ru(1), one Si(2), one Si(3), and one Si(4) atom to form distorted PSi3Ru tetrahedra that share corners with two equivalent Ru(1)Si3P3 octahedra,  a cornercorner with one Si(1)P3Ru tetrahedra,  a cornercorner with one Si(3)P3Ru tetrahedra,  a cornercorner with one Si(4)P3Ru tetrahedra, corners with three equivalent P(2)Si3Ru tetrahedra, corners with three equivalent P(3)Si4 tetrahedra, and corners with three equivalent P(1)Si3Ru trigonal pyramids. The corner-sharing octahedral tilt angles range from 46-68°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si4P4Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.949
_cell_length_b   5.646
_cell_length_c   6.176
_cell_angle_alpha   85.539
_cell_angle_beta   68.267
_cell_angle_gamma   70.679
_symmetry_Int_Tables_number   1
_cell_volume   151.085
_cell_formula_units_Z   1
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  0.670  0.775  0.227  1.0
  Si  Si1  1  0.237  0.344  0.432  1.0
  Si  Si2  1  0.360  0.594  0.880  1.0
  Si  Si3  1  0.844  0.972  0.689  1.0
  P  P4  1  0.161  0.016  0.319  1.0
  P  P5  1  0.620  0.412  0.123  1.0
  P  P6  1  0.767  0.642  0.563  1.0
  P  P7  1  0.342  0.228  0.758  1.0
  Ru  Ru8  1  0.999  0.998  0.999  1.0
[/CIF]
.