The material described by Sm2(PtGe)3 crystallizes in the tetragonal P4/mmm space group. Sm(1) is bonded to four equivalent Sm(1), one Pt(2), and one Ge(1) atom to form distorted SmSm4GePt octahedra that share  a cornercorner with one Ge(2)Ge4Pt2 octahedra, corners with four equivalent Sm(1)Sm4GePt octahedra, edges with four equivalent Sm(1)Sm4GePt octahedra, and edges with four equivalent Ge(1)SmGe4Pt octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted linear geometry to two equivalent Ge(1) atoms. In the second Pt site, Pt(2) is bonded in a distorted linear geometry to one Sm(1) and one Ge(2) atom. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Sm(1), one Pt(1), and four equivalent Ge(1) atoms to form distorted GeSmGe4Pt octahedra that share corners with five equivalent Ge(1)SmGe4Pt octahedra, edges with four equivalent Sm(1)Sm4GePt octahedra, and edges with four equivalent Ge(1)SmGe4Pt octahedra. The corner-sharing octahedra are not tilted. In the second Ge site, Ge(2) is bonded to two equivalent Pt(2) and four equivalent Ge(2) atoms to form distorted GeGe4Pt2 octahedra that share corners with two equivalent Sm(1)Sm4GePt octahedra, corners with four equivalent Ge(2)Ge4Pt2 octahedra, and edges with four equivalent Ge(2)Ge4Pt2 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2(GePt)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.826
_cell_length_b   2.826
_cell_length_c   21.722
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   173.541
_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
  Sm  Sm0  1  0.500  0.500  0.759  1.0
  Sm  Sm1  1  0.500  0.500  0.241  1.0
  Ge  Ge2  1  0.500  0.500  0.387  1.0
  Ge  Ge3  1  0.500  0.500  0.613  1.0
  Ge  Ge4  1  0.500  0.500  0.000  1.0
  Pt  Pt5  1  0.500  0.500  0.500  1.0
  Pt  Pt6  1  0.500  0.500  0.115  1.0
  Pt  Pt7  1  0.500  0.500  0.885  1.0
[/CIF]
.
The material described by Sm2(PtGe)3 crystallizes in the tetragonal P4/mmm space group. Sm(1) is bonded to four equivalent Sm(1), one Pt(2), and one Ge(1) atom to form distorted SmSm4GePt octahedra that share  a cornercorner with one Ge(2)Ge4Pt2 octahedra, corners with four equivalent Sm(1)Sm4GePt octahedra, edges with four equivalent Sm(1)Sm4GePt octahedra, and edges with four equivalent Ge(1)SmGe4Pt octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted linear geometry to two equivalent Ge(1) atoms. In the second Pt site, Pt(2) is bonded in a distorted linear geometry to one Sm(1) and one Ge(2) atom. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Sm(1), one Pt(1), and four equivalent Ge(1) atoms to form distorted GeSmGe4Pt octahedra that share corners with five equivalent Ge(1)SmGe4Pt octahedra, edges with four equivalent Sm(1)Sm4GePt octahedra, and edges with four equivalent Ge(1)SmGe4Pt octahedra. The corner-sharing octahedra are not tilted. In the second Ge site, Ge(2) is bonded to two equivalent Pt(2) and four equivalent Ge(2) atoms to form distorted GeGe4Pt2 octahedra that share corners with two equivalent Sm(1)Sm4GePt octahedra, corners with four equivalent Ge(2)Ge4Pt2 octahedra, and edges with four equivalent Ge(2)Ge4Pt2 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2(GePt)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.826
_cell_length_b   2.826
_cell_length_c   21.722
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   173.541
_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
  Sm  Sm0  1  0.500  0.500  0.759  1.0
  Sm  Sm1  1  0.500  0.500  0.241  1.0
  Ge  Ge2  1  0.500  0.500  0.387  1.0
  Ge  Ge3  1  0.500  0.500  0.613  1.0
  Ge  Ge4  1  0.500  0.500  0.000  1.0
  Pt  Pt5  1  0.500  0.500  0.500  1.0
  Pt  Pt6  1  0.500  0.500  0.115  1.0
  Pt  Pt7  1  0.500  0.500  0.885  1.0
[/CIF]
.