The material structure described by Sr2Pt3In4 crystallizes in the hexagonal P-62m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 16-coordinate geometry to two equivalent Pt(1), four equivalent Pt(3), two equivalent In(1), two equivalent In(3), two equivalent In(4), and four equivalent In(2) atoms. In the second Sr site, Sr(2) is bonded in a 15-coordinate geometry to six equivalent Pt(2), three equivalent In(2), and six equivalent In(1) atoms. In the third Sr site, Sr(3) is bonded in a 13-coordinate geometry to one Pt(1), four equivalent Pt(2), two equivalent In(2), two equivalent In(4), and four equivalent In(1) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one In(3), two equivalent In(2), and two equivalent In(4) atoms. In the second Pt site, Pt(1) is bonded in a 9-coordinate geometry to one Sr(3), two equivalent Sr(1), two equivalent In(2), and four equivalent In(1) atoms. In the third Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent Sr(2), two equivalent Sr(3), one In(4), two equivalent In(1), and two equivalent In(2) atoms. There are four inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), two equivalent Sr(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. In the second In site, In(2) is bonded in a 4-coordinate geometry to one Sr(2), one Sr(3), two equivalent Sr(1), one Pt(1), one Pt(3), and two equivalent Pt(2) atoms. In the third In site, In(3) is bonded in a distorted trigonal planar geometry to six equivalent Sr(1) and three equivalent Pt(3) atoms. In the fourth In site, In(4) is bonded to two equivalent Sr(1), two equivalent Sr(3), two equivalent Pt(2), and two equivalent Pt(3) atoms to form a mixture of distorted corner and edge-sharing InSr4Pt4 tetrahedra. is represented by the CIF file [CIF]
data_Sr2In4Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.728
_cell_length_b   14.728
_cell_length_c   4.553
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.999
_symmetry_Int_Tables_number   1
_cell_volume   855.313
_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
  Sr  Sr0  1  0.186  1.000  0.500  1.0
  Sr  Sr1  1  0.814  0.814  0.500  1.0
  Sr  Sr2  1  1.000  0.186  0.500  1.0
  Sr  Sr3  1  0.667  0.333  0.000  1.0
  Sr  Sr4  1  0.333  0.667  1.000  1.0
  Sr  Sr5  1  0.551  0.000  1.000  1.0
  Sr  Sr6  1  0.449  0.449  0.000  1.0
  Sr  Sr7  1  1.000  0.551  1.000  1.0
  In  In8  1  0.479  0.125  0.500  1.0
  In  In9  1  0.875  0.354  0.500  1.0
  In  In10  1  0.646  0.521  0.500  1.0
  In  In11  1  0.521  0.646  0.500  1.0
  In  In12  1  0.354  0.875  0.500  1.0
  In  In13  1  0.125  0.479  0.500  1.0
  In  In14  1  0.379  0.196  1.000  1.0
  In  In15  1  0.804  0.184  0.000  1.0
  In  In16  1  0.816  0.621  0.000  1.0
  In  In17  1  0.621  0.816  1.000  1.0
  In  In18  1  1.000  1.000  0.000  1.0
  In  In19  1  0.184  0.804  1.000  1.0
  In  In20  1  0.723  1.000  0.500  1.0
  In  In21  1  0.277  0.277  0.500  1.0
  In  In22  1  0.000  0.723  0.500  1.0
  In  In23  1  0.196  0.379  0.000  1.0
  Pt  Pt24  1  1.000  0.351  1.000  1.0
  Pt  Pt25  1  0.351  1.000  1.000  1.0
  Pt  Pt26  1  0.482  0.313  0.500  1.0
  Pt  Pt27  1  0.687  0.169  0.500  1.0
  Pt  Pt28  1  0.831  0.518  0.500  1.0
  Pt  Pt29  1  0.518  0.831  0.500  1.0
  Pt  Pt30  1  0.169  0.687  0.500  1.0
  Pt  Pt31  1  0.313  0.482  0.500  1.0
  Pt  Pt32  1  1.000  0.819  1.000  1.0
  Pt  Pt33  1  0.181  0.181  0.000  1.0
  Pt  Pt34  1  0.819  1.000  1.000  1.0
  Pt  Pt35  1  0.649  0.649  1.000  1.0
[/CIF]
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The material structure described by Sr2Pt3In4 crystallizes in the hexagonal P-62m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 16-coordinate geometry to two equivalent Pt(1), four equivalent Pt(3), two equivalent In(1), two equivalent In(3), two equivalent In(4), and four equivalent In(2) atoms. In the second Sr site, Sr(2) is bonded in a 15-coordinate geometry to six equivalent Pt(2), three equivalent In(2), and six equivalent In(1) atoms. In the third Sr site, Sr(3) is bonded in a 13-coordinate geometry to one Pt(1), four equivalent Pt(2), two equivalent In(2), two equivalent In(4), and four equivalent In(1) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one In(3), two equivalent In(2), and two equivalent In(4) atoms. In the second Pt site, Pt(1) is bonded in a 9-coordinate geometry to one Sr(3), two equivalent Sr(1), two equivalent In(2), and four equivalent In(1) atoms. In the third Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent Sr(2), two equivalent Sr(3), one In(4), two equivalent In(1), and two equivalent In(2) atoms. There are four inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), two equivalent Sr(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. In the second In site, In(2) is bonded in a 4-coordinate geometry to one Sr(2), one Sr(3), two equivalent Sr(1), one Pt(1), one Pt(3), and two equivalent Pt(2) atoms. In the third In site, In(3) is bonded in a distorted trigonal planar geometry to six equivalent Sr(1) and three equivalent Pt(3) atoms. In the fourth In site, In(4) is bonded to two equivalent Sr(1), two equivalent Sr(3), two equivalent Pt(2), and two equivalent Pt(3) atoms to form a mixture of distorted corner and edge-sharing InSr4Pt4 tetrahedra. is represented by the CIF file [CIF]
data_Sr2In4Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.728
_cell_length_b   14.728
_cell_length_c   4.553
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.999
_symmetry_Int_Tables_number   1
_cell_volume   855.313
_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
  Sr  Sr0  1  0.186  1.000  0.500  1.0
  Sr  Sr1  1  0.814  0.814  0.500  1.0
  Sr  Sr2  1  1.000  0.186  0.500  1.0
  Sr  Sr3  1  0.667  0.333  0.000  1.0
  Sr  Sr4  1  0.333  0.667  1.000  1.0
  Sr  Sr5  1  0.551  0.000  1.000  1.0
  Sr  Sr6  1  0.449  0.449  0.000  1.0
  Sr  Sr7  1  1.000  0.551  1.000  1.0
  In  In8  1  0.479  0.125  0.500  1.0
  In  In9  1  0.875  0.354  0.500  1.0
  In  In10  1  0.646  0.521  0.500  1.0
  In  In11  1  0.521  0.646  0.500  1.0
  In  In12  1  0.354  0.875  0.500  1.0
  In  In13  1  0.125  0.479  0.500  1.0
  In  In14  1  0.379  0.196  1.000  1.0
  In  In15  1  0.804  0.184  0.000  1.0
  In  In16  1  0.816  0.621  0.000  1.0
  In  In17  1  0.621  0.816  1.000  1.0
  In  In18  1  1.000  1.000  0.000  1.0
  In  In19  1  0.184  0.804  1.000  1.0
  In  In20  1  0.723  1.000  0.500  1.0
  In  In21  1  0.277  0.277  0.500  1.0
  In  In22  1  0.000  0.723  0.500  1.0
  In  In23  1  0.196  0.379  0.000  1.0
  Pt  Pt24  1  1.000  0.351  1.000  1.0
  Pt  Pt25  1  0.351  1.000  1.000  1.0
  Pt  Pt26  1  0.482  0.313  0.500  1.0
  Pt  Pt27  1  0.687  0.169  0.500  1.0
  Pt  Pt28  1  0.831  0.518  0.500  1.0
  Pt  Pt29  1  0.518  0.831  0.500  1.0
  Pt  Pt30  1  0.169  0.687  0.500  1.0
  Pt  Pt31  1  0.313  0.482  0.500  1.0
  Pt  Pt32  1  1.000  0.819  1.000  1.0
  Pt  Pt33  1  0.181  0.181  0.000  1.0
  Pt  Pt34  1  0.819  1.000  1.000  1.0
  Pt  Pt35  1  0.649  0.649  1.000  1.0
[/CIF]
.