The material structure described by SmPt5Si3 crystallizes in the hexagonal P6_3/m space group. Sm(1) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Pt(4), two equivalent Pt(5), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. There are five inequivalent Pt sites. In the first Pt site, Pt(4) is bonded in a 6-coordinate geometry to two equivalent Sm(1), one Si(1), and three equivalent Si(2) atoms. In the second Pt site, Pt(5) is bonded in a 6-coordinate geometry to two equivalent Sm(1), one Si(2), and three equivalent Si(3) atoms. In the third Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Sm(1), one Si(1), one Si(3), and two equivalent Si(2) atoms. In the fourth Pt site, Pt(2) is bonded in a 5-coordinate geometry to one Si(2) and four equivalent Si(1) atoms. In the fifth Pt site, Pt(3) is bonded in a trigonal non-coplanar geometry to three equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 8-coordinate geometry to two equivalent Sm(1), one Pt(1), one Pt(4), and four equivalent Pt(2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), one Pt(2), one Pt(5), two equivalent Pt(1), and three equivalent Pt(4) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to two equivalent Sm(1), one Pt(1), three equivalent Pt(3), and three equivalent Pt(5) atoms. is represented by the CIF card [CIF]
data_SmSi3Pt5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.054
_cell_length_b   16.054
_cell_length_c   4.009
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   894.806
_cell_formula_units_Z   6
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
  Sm  Sm0  1  0.609  0.903  0.250  1.0
  Sm  Sm1  1  0.706  0.609  0.750  1.0
  Sm  Sm2  1  0.903  0.294  0.750  1.0
  Sm  Sm3  1  0.097  0.706  0.250  1.0
  Sm  Sm4  1  0.294  0.391  0.250  1.0
  Sm  Sm5  1  0.391  0.097  0.750  1.0
  Si  Si6  1  0.449  0.767  0.750  1.0
  Si  Si7  1  0.627  0.061  0.750  1.0
  Si  Si8  1  0.566  0.627  0.250  1.0
  Si  Si9  1  0.061  0.434  0.250  1.0
  Si  Si10  1  0.939  0.566  0.750  1.0
  Si  Si11  1  0.434  0.373  0.750  1.0
  Si  Si12  1  0.682  0.449  0.250  1.0
  Si  Si13  1  0.767  0.318  0.250  1.0
  Si  Si14  1  0.233  0.682  0.750  1.0
  Si  Si15  1  0.318  0.551  0.750  1.0
  Si  Si16  1  0.551  0.233  0.250  1.0
  Si  Si17  1  0.373  0.939  0.250  1.0
  Si  Si18  1  0.751  0.883  0.750  1.0
  Si  Si19  1  0.883  0.132  0.250  1.0
  Si  Si20  1  0.117  0.868  0.750  1.0
  Si  Si21  1  0.132  0.249  0.750  1.0
  Si  Si22  1  0.249  0.117  0.250  1.0
  Si  Si23  1  0.868  0.751  0.250  1.0
  Pt  Pt24  1  0.588  0.745  0.750  1.0
  Pt  Pt25  1  0.435  0.665  0.250  1.0
  Pt  Pt26  1  0.230  0.565  0.250  1.0
  Pt  Pt27  1  0.665  0.230  0.750  1.0
  Pt  Pt28  1  0.565  0.335  0.750  1.0
  Pt  Pt29  1  0.335  0.770  0.250  1.0
  Pt  Pt30  1  0.150  0.032  0.750  1.0
  Pt  Pt31  1  0.118  0.150  0.250  1.0
  Pt  Pt32  1  0.032  0.882  0.250  1.0
  Pt  Pt33  1  0.968  0.118  0.750  1.0
  Pt  Pt34  1  0.882  0.850  0.750  1.0
  Pt  Pt35  1  0.850  0.968  0.250  1.0
  Pt  Pt36  1  0.844  0.588  0.250  1.0
  Pt  Pt37  1  0.745  0.156  0.250  1.0
  Pt  Pt38  1  0.255  0.844  0.750  1.0
  Pt  Pt39  1  0.156  0.412  0.750  1.0
  Pt  Pt40  1  0.412  0.255  0.250  1.0
  Pt  Pt41  1  0.466  0.924  0.750  1.0
  Pt  Pt42  1  0.542  0.466  0.250  1.0
  Pt  Pt43  1  0.924  0.458  0.250  1.0
  Pt  Pt44  1  0.076  0.542  0.750  1.0
  Pt  Pt45  1  0.458  0.534  0.750  1.0
  Pt  Pt46  1  0.534  0.076  0.250  1.0
  Pt  Pt47  1  0.724  0.765  0.250  1.0
  Pt  Pt48  1  0.960  0.724  0.750  1.0
  Pt  Pt49  1  0.765  0.040  0.750  1.0
  Pt  Pt50  1  0.235  0.960  0.250  1.0
  Pt  Pt51  1  0.040  0.276  0.250  1.0
  Pt  Pt52  1  0.276  0.235  0.750  1.0
  Pt  Pt53  1  0.770  0.435  0.750  1.0
[/CIF]
.
The material structure described by SmPt5Si3 crystallizes in the hexagonal P6_3/m space group. Sm(1) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Pt(4), two equivalent Pt(5), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. There are five inequivalent Pt sites. In the first Pt site, Pt(4) is bonded in a 6-coordinate geometry to two equivalent Sm(1), one Si(1), and three equivalent Si(2) atoms. In the second Pt site, Pt(5) is bonded in a 6-coordinate geometry to two equivalent Sm(1), one Si(2), and three equivalent Si(3) atoms. In the third Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Sm(1), one Si(1), one Si(3), and two equivalent Si(2) atoms. In the fourth Pt site, Pt(2) is bonded in a 5-coordinate geometry to one Si(2) and four equivalent Si(1) atoms. In the fifth Pt site, Pt(3) is bonded in a trigonal non-coplanar geometry to three equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 8-coordinate geometry to two equivalent Sm(1), one Pt(1), one Pt(4), and four equivalent Pt(2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), one Pt(2), one Pt(5), two equivalent Pt(1), and three equivalent Pt(4) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to two equivalent Sm(1), one Pt(1), three equivalent Pt(3), and three equivalent Pt(5) atoms. is represented by the CIF card [CIF]
data_SmSi3Pt5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.054
_cell_length_b   16.054
_cell_length_c   4.009
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   894.806
_cell_formula_units_Z   6
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
  Sm  Sm0  1  0.609  0.903  0.250  1.0
  Sm  Sm1  1  0.706  0.609  0.750  1.0
  Sm  Sm2  1  0.903  0.294  0.750  1.0
  Sm  Sm3  1  0.097  0.706  0.250  1.0
  Sm  Sm4  1  0.294  0.391  0.250  1.0
  Sm  Sm5  1  0.391  0.097  0.750  1.0
  Si  Si6  1  0.449  0.767  0.750  1.0
  Si  Si7  1  0.627  0.061  0.750  1.0
  Si  Si8  1  0.566  0.627  0.250  1.0
  Si  Si9  1  0.061  0.434  0.250  1.0
  Si  Si10  1  0.939  0.566  0.750  1.0
  Si  Si11  1  0.434  0.373  0.750  1.0
  Si  Si12  1  0.682  0.449  0.250  1.0
  Si  Si13  1  0.767  0.318  0.250  1.0
  Si  Si14  1  0.233  0.682  0.750  1.0
  Si  Si15  1  0.318  0.551  0.750  1.0
  Si  Si16  1  0.551  0.233  0.250  1.0
  Si  Si17  1  0.373  0.939  0.250  1.0
  Si  Si18  1  0.751  0.883  0.750  1.0
  Si  Si19  1  0.883  0.132  0.250  1.0
  Si  Si20  1  0.117  0.868  0.750  1.0
  Si  Si21  1  0.132  0.249  0.750  1.0
  Si  Si22  1  0.249  0.117  0.250  1.0
  Si  Si23  1  0.868  0.751  0.250  1.0
  Pt  Pt24  1  0.588  0.745  0.750  1.0
  Pt  Pt25  1  0.435  0.665  0.250  1.0
  Pt  Pt26  1  0.230  0.565  0.250  1.0
  Pt  Pt27  1  0.665  0.230  0.750  1.0
  Pt  Pt28  1  0.565  0.335  0.750  1.0
  Pt  Pt29  1  0.335  0.770  0.250  1.0
  Pt  Pt30  1  0.150  0.032  0.750  1.0
  Pt  Pt31  1  0.118  0.150  0.250  1.0
  Pt  Pt32  1  0.032  0.882  0.250  1.0
  Pt  Pt33  1  0.968  0.118  0.750  1.0
  Pt  Pt34  1  0.882  0.850  0.750  1.0
  Pt  Pt35  1  0.850  0.968  0.250  1.0
  Pt  Pt36  1  0.844  0.588  0.250  1.0
  Pt  Pt37  1  0.745  0.156  0.250  1.0
  Pt  Pt38  1  0.255  0.844  0.750  1.0
  Pt  Pt39  1  0.156  0.412  0.750  1.0
  Pt  Pt40  1  0.412  0.255  0.250  1.0
  Pt  Pt41  1  0.466  0.924  0.750  1.0
  Pt  Pt42  1  0.542  0.466  0.250  1.0
  Pt  Pt43  1  0.924  0.458  0.250  1.0
  Pt  Pt44  1  0.076  0.542  0.750  1.0
  Pt  Pt45  1  0.458  0.534  0.750  1.0
  Pt  Pt46  1  0.534  0.076  0.250  1.0
  Pt  Pt47  1  0.724  0.765  0.250  1.0
  Pt  Pt48  1  0.960  0.724  0.750  1.0
  Pt  Pt49  1  0.765  0.040  0.750  1.0
  Pt  Pt50  1  0.235  0.960  0.250  1.0
  Pt  Pt51  1  0.040  0.276  0.250  1.0
  Pt  Pt52  1  0.276  0.235  0.750  1.0
  Pt  Pt53  1  0.770  0.435  0.750  1.0
[/CIF]
.