The material structure described by Ca2Pt3Sn5 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to two equivalent Pt(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(5) atoms. In the second Ca site, Ca(2) is bonded in a 13-coordinate geometry to one Pt(3), four equivalent Pt(1), two equivalent Sn(4), two equivalent Sn(5), and four equivalent Sn(3) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 9-coordinate geometry to one Ca(2), two equivalent Ca(1), one Sn(2), one Sn(5), two equivalent Sn(3), and two equivalent Sn(4) atoms. In the second Pt site, Pt(1) is bonded in a 9-coordinate geometry to four equivalent Ca(2), one Sn(4), two equivalent Sn(3), and two equivalent Sn(5) atoms. In the third Pt site, Pt(2) is bonded in a 7-coordinate geometry to one Sn(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 5-coordinate geometry to two equivalent Ca(1), three equivalent Pt(2), and one Sn(5) atom. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Ca(1), one Pt(3), and three equivalent Pt(2) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to four equivalent Ca(2), two equivalent Pt(1), and two equivalent Pt(3) atoms. In the fourth Sn site, Sn(4) is bonded in a 4-coordinate geometry to two equivalent Ca(2), one Pt(1), one Pt(2), and two equivalent Pt(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 8-coordinate geometry to two equivalent Ca(1), two equivalent Ca(2), one Pt(3), two equivalent Pt(1), and one Sn(1) atom. is represented by the CIF file [CIF]
data_Ca2Sn5Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.491
_cell_length_b   7.392
_cell_length_c   26.591
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   882.712
_cell_formula_units_Z   4
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
  Ca  Ca0  1  0.750  0.252  0.923  1.0
  Ca  Ca1  1  0.250  0.748  0.077  1.0
  Ca  Ca2  1  0.750  0.752  0.577  1.0
  Ca  Ca3  1  0.250  0.248  0.423  1.0
  Ca  Ca4  1  0.750  0.285  0.227  1.0
  Ca  Ca5  1  0.250  0.715  0.773  1.0
  Ca  Ca6  1  0.750  0.785  0.273  1.0
  Ca  Ca7  1  0.250  0.215  0.727  1.0
  Sn  Sn8  1  0.250  0.464  0.543  1.0
  Sn  Sn9  1  0.250  0.039  0.543  1.0
  Sn  Sn10  1  0.750  0.961  0.457  1.0
  Sn  Sn11  1  0.250  0.539  0.957  1.0
  Sn  Sn12  1  0.750  0.461  0.043  1.0
  Sn  Sn13  1  0.750  0.380  0.798  1.0
  Sn  Sn14  1  0.750  0.536  0.457  1.0
  Sn  Sn15  1  0.250  0.964  0.957  1.0
  Sn  Sn16  1  0.750  0.036  0.043  1.0
  Sn  Sn17  1  0.250  0.790  0.369  1.0
  Sn  Sn18  1  0.750  0.210  0.631  1.0
  Sn  Sn19  1  0.250  0.290  0.131  1.0
  Sn  Sn20  1  0.750  0.908  0.153  1.0
  Sn  Sn21  1  0.250  0.620  0.202  1.0
  Sn  Sn22  1  0.750  0.880  0.702  1.0
  Sn  Sn23  1  0.250  0.120  0.298  1.0
  Sn  Sn24  1  0.250  0.592  0.653  1.0
  Sn  Sn25  1  0.250  0.092  0.847  1.0
  Sn  Sn26  1  0.750  0.408  0.347  1.0
  Sn  Sn27  1  0.750  0.710  0.869  1.0
  Pt  Pt28  1  0.750  0.000  0.800  1.0
  Pt  Pt29  1  0.250  0.745  0.472  1.0
  Pt  Pt30  1  0.750  0.255  0.528  1.0
  Pt  Pt31  1  0.250  0.245  0.028  1.0
  Pt  Pt32  1  0.750  0.755  0.972  1.0
  Pt  Pt33  1  0.250  0.960  0.643  1.0
  Pt  Pt34  1  0.750  0.040  0.357  1.0
  Pt  Pt35  1  0.250  0.460  0.857  1.0
  Pt  Pt36  1  0.750  0.540  0.143  1.0
  Pt  Pt37  1  0.250  0.500  0.300  1.0
  Pt  Pt38  1  0.750  0.500  0.700  1.0
  Pt  Pt39  1  0.250  1.000  0.200  1.0
[/CIF]
.
The material structure described by Ca2Pt3Sn5 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to two equivalent Pt(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(5) atoms. In the second Ca site, Ca(2) is bonded in a 13-coordinate geometry to one Pt(3), four equivalent Pt(1), two equivalent Sn(4), two equivalent Sn(5), and four equivalent Sn(3) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 9-coordinate geometry to one Ca(2), two equivalent Ca(1), one Sn(2), one Sn(5), two equivalent Sn(3), and two equivalent Sn(4) atoms. In the second Pt site, Pt(1) is bonded in a 9-coordinate geometry to four equivalent Ca(2), one Sn(4), two equivalent Sn(3), and two equivalent Sn(5) atoms. In the third Pt site, Pt(2) is bonded in a 7-coordinate geometry to one Sn(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 5-coordinate geometry to two equivalent Ca(1), three equivalent Pt(2), and one Sn(5) atom. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Ca(1), one Pt(3), and three equivalent Pt(2) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to four equivalent Ca(2), two equivalent Pt(1), and two equivalent Pt(3) atoms. In the fourth Sn site, Sn(4) is bonded in a 4-coordinate geometry to two equivalent Ca(2), one Pt(1), one Pt(2), and two equivalent Pt(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 8-coordinate geometry to two equivalent Ca(1), two equivalent Ca(2), one Pt(3), two equivalent Pt(1), and one Sn(1) atom. is represented by the CIF file [CIF]
data_Ca2Sn5Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.491
_cell_length_b   7.392
_cell_length_c   26.591
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   882.712
_cell_formula_units_Z   4
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
  Ca  Ca0  1  0.750  0.252  0.923  1.0
  Ca  Ca1  1  0.250  0.748  0.077  1.0
  Ca  Ca2  1  0.750  0.752  0.577  1.0
  Ca  Ca3  1  0.250  0.248  0.423  1.0
  Ca  Ca4  1  0.750  0.285  0.227  1.0
  Ca  Ca5  1  0.250  0.715  0.773  1.0
  Ca  Ca6  1  0.750  0.785  0.273  1.0
  Ca  Ca7  1  0.250  0.215  0.727  1.0
  Sn  Sn8  1  0.250  0.464  0.543  1.0
  Sn  Sn9  1  0.250  0.039  0.543  1.0
  Sn  Sn10  1  0.750  0.961  0.457  1.0
  Sn  Sn11  1  0.250  0.539  0.957  1.0
  Sn  Sn12  1  0.750  0.461  0.043  1.0
  Sn  Sn13  1  0.750  0.380  0.798  1.0
  Sn  Sn14  1  0.750  0.536  0.457  1.0
  Sn  Sn15  1  0.250  0.964  0.957  1.0
  Sn  Sn16  1  0.750  0.036  0.043  1.0
  Sn  Sn17  1  0.250  0.790  0.369  1.0
  Sn  Sn18  1  0.750  0.210  0.631  1.0
  Sn  Sn19  1  0.250  0.290  0.131  1.0
  Sn  Sn20  1  0.750  0.908  0.153  1.0
  Sn  Sn21  1  0.250  0.620  0.202  1.0
  Sn  Sn22  1  0.750  0.880  0.702  1.0
  Sn  Sn23  1  0.250  0.120  0.298  1.0
  Sn  Sn24  1  0.250  0.592  0.653  1.0
  Sn  Sn25  1  0.250  0.092  0.847  1.0
  Sn  Sn26  1  0.750  0.408  0.347  1.0
  Sn  Sn27  1  0.750  0.710  0.869  1.0
  Pt  Pt28  1  0.750  0.000  0.800  1.0
  Pt  Pt29  1  0.250  0.745  0.472  1.0
  Pt  Pt30  1  0.750  0.255  0.528  1.0
  Pt  Pt31  1  0.250  0.245  0.028  1.0
  Pt  Pt32  1  0.750  0.755  0.972  1.0
  Pt  Pt33  1  0.250  0.960  0.643  1.0
  Pt  Pt34  1  0.750  0.040  0.357  1.0
  Pt  Pt35  1  0.250  0.460  0.857  1.0
  Pt  Pt36  1  0.750  0.540  0.143  1.0
  Pt  Pt37  1  0.250  0.500  0.300  1.0
  Pt  Pt38  1  0.750  0.500  0.700  1.0
  Pt  Pt39  1  0.250  1.000  0.200  1.0
[/CIF]
.