The compound described by Sm2Pt3Si5 crystallizes in the orthorhombic Ibam space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 17-coordinate geometry to two equivalent Pt(2); five Pt(1,1); two equivalent Si(3); four equivalent Si(1); and four Si(2,2) atoms. In the second Sm site, Sm(1) is bonded in a 17-coordinate geometry to two equivalent Pt(2); five Pt(1,1); two equivalent Si(3); four equivalent Si(1); and four Si(2,2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(2) is bonded in a 6-coordinate geometry to four Sm(1,1); two equivalent Si(1); and four Si(2,2) atoms. In the second Pt site, Pt(1) is bonded in a 5-coordinate geometry to five Sm(1,1); one Si(2); two equivalent Si(1); and two equivalent Si(3) atoms. In the third Pt site, Pt(1) is bonded in a 5-coordinate geometry to five Sm(1,1); one Si(2); two equivalent Si(1); and two equivalent Si(3) atoms. There are five inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(2); two Pt(1,1); and two Si(2,2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(1); two equivalent Pt(2); and two equivalent Si(1) atoms. In the third Si site, Si(2) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(1); two equivalent Pt(2); and two equivalent Si(1) atoms. In the fourth Si site, Si(3) is bonded in a 8-coordinate geometry to four Sm(1,1) and four Pt(1,1) atoms. In the fifth Si site, Si(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(2); two Pt(1,1); and two Si(2,2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2Si5Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.186
_cell_length_b   8.183
_cell_length_c   8.180
_cell_angle_alpha   136.511
_cell_angle_beta   105.083
_cell_angle_gamma   90.835
_symmetry_Int_Tables_number   1
_cell_volume   346.623
_cell_formula_units_Z   2
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  0.640  0.371  0.269  1.0
  Sm  Sm1  1  0.360  0.629  0.731  1.0
  Sm  Sm2  1  0.102  0.871  0.231  1.0
  Sm  Sm3  1  0.898  0.129  0.769  1.0
  Si  Si4  1  0.271  0.522  0.250  1.0
  Si  Si5  1  0.729  0.478  0.750  1.0
  Si  Si6  1  0.729  0.979  0.250  1.0
  Si  Si7  1  0.271  0.021  0.750  1.0
  Si  Si8  1  0.464  0.113  0.351  1.0
  Si  Si9  1  0.536  0.887  0.649  1.0
  Si  Si10  1  0.762  0.613  0.149  1.0
  Si  Si11  1  0.238  0.387  0.851  1.0
  Si  Si12  1  0.000  0.250  0.250  1.0
  Si  Si13  1  1.000  0.750  0.750  1.0
  Pt  Pt14  1  0.248  0.137  0.112  1.0
  Pt  Pt15  1  0.752  0.863  0.888  1.0
  Pt  Pt16  1  0.025  0.637  0.389  1.0
  Pt  Pt17  1  0.975  0.363  0.611  1.0
  Pt  Pt18  1  0.500  0.250  0.750  1.0
  Pt  Pt19  1  0.500  0.750  0.250  1.0
[/CIF]
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The compound described by Sm2Pt3Si5 crystallizes in the orthorhombic Ibam space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 17-coordinate geometry to two equivalent Pt(2); five Pt(1,1); two equivalent Si(3); four equivalent Si(1); and four Si(2,2) atoms. In the second Sm site, Sm(1) is bonded in a 17-coordinate geometry to two equivalent Pt(2); five Pt(1,1); two equivalent Si(3); four equivalent Si(1); and four Si(2,2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(2) is bonded in a 6-coordinate geometry to four Sm(1,1); two equivalent Si(1); and four Si(2,2) atoms. In the second Pt site, Pt(1) is bonded in a 5-coordinate geometry to five Sm(1,1); one Si(2); two equivalent Si(1); and two equivalent Si(3) atoms. In the third Pt site, Pt(1) is bonded in a 5-coordinate geometry to five Sm(1,1); one Si(2); two equivalent Si(1); and two equivalent Si(3) atoms. There are five inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(2); two Pt(1,1); and two Si(2,2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(1); two equivalent Pt(2); and two equivalent Si(1) atoms. In the third Si site, Si(2) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(1); two equivalent Pt(2); and two equivalent Si(1) atoms. In the fourth Si site, Si(3) is bonded in a 8-coordinate geometry to four Sm(1,1) and four Pt(1,1) atoms. In the fifth Si site, Si(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Pt(2); two Pt(1,1); and two Si(2,2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2Si5Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.186
_cell_length_b   8.183
_cell_length_c   8.180
_cell_angle_alpha   136.511
_cell_angle_beta   105.083
_cell_angle_gamma   90.835
_symmetry_Int_Tables_number   1
_cell_volume   346.623
_cell_formula_units_Z   2
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  0.640  0.371  0.269  1.0
  Sm  Sm1  1  0.360  0.629  0.731  1.0
  Sm  Sm2  1  0.102  0.871  0.231  1.0
  Sm  Sm3  1  0.898  0.129  0.769  1.0
  Si  Si4  1  0.271  0.522  0.250  1.0
  Si  Si5  1  0.729  0.478  0.750  1.0
  Si  Si6  1  0.729  0.979  0.250  1.0
  Si  Si7  1  0.271  0.021  0.750  1.0
  Si  Si8  1  0.464  0.113  0.351  1.0
  Si  Si9  1  0.536  0.887  0.649  1.0
  Si  Si10  1  0.762  0.613  0.149  1.0
  Si  Si11  1  0.238  0.387  0.851  1.0
  Si  Si12  1  0.000  0.250  0.250  1.0
  Si  Si13  1  1.000  0.750  0.750  1.0
  Pt  Pt14  1  0.248  0.137  0.112  1.0
  Pt  Pt15  1  0.752  0.863  0.888  1.0
  Pt  Pt16  1  0.025  0.637  0.389  1.0
  Pt  Pt17  1  0.975  0.363  0.611  1.0
  Pt  Pt18  1  0.500  0.250  0.750  1.0
  Pt  Pt19  1  0.500  0.750  0.250  1.0
[/CIF]
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