The crystal structure described by Sc4Pt7Si2 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 10-coordinate geometry to two equivalent Pt(1), two equivalent Pt(3), two equivalent Pt(4), and four equivalent Pt(2) atoms. In the second Sc site, Sc(2) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Pt(2), four equivalent Pt(4), and four equivalent Si(1) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Sc(1), two equivalent Sc(2), and two equivalent Si(1) atoms. In the second Pt site, Pt(2) is bonded in a 7-coordinate geometry to two equivalent Sc(2), four equivalent Sc(1), and one Si(1) atom. In the third Pt site, Pt(3) is bonded in a distorted square co-planar geometry to four equivalent Sc(1) atoms. In the fourth Pt site, Pt(4) is bonded in a 6-coordinate geometry to two equivalent Sc(1), four equivalent Sc(2), and two equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to four equivalent Sc(2), one Pt(2), two equivalent Pt(1), and two equivalent Pt(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sc4Si2Pt7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.995
_cell_length_b   6.510
_cell_length_c   16.281
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   423.413
_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
  Sc  Sc0  1  0.000  0.285  0.461  1.0
  Sc  Sc1  1  0.000  0.715  0.539  1.0
  Sc  Sc2  1  0.000  0.785  0.039  1.0
  Sc  Sc3  1  0.000  0.215  0.961  1.0
  Sc  Sc4  1  0.000  0.525  0.291  1.0
  Sc  Sc5  1  0.000  0.475  0.709  1.0
  Sc  Sc6  1  0.000  0.025  0.209  1.0
  Sc  Sc7  1  0.000  0.975  0.791  1.0
  Si  Si8  1  0.500  0.840  0.308  1.0
  Si  Si9  1  0.500  0.160  0.692  1.0
  Si  Si10  1  0.500  0.340  0.192  1.0
  Si  Si11  1  0.500  0.660  0.808  1.0
  Pt  Pt12  1  0.000  0.908  0.382  1.0
  Pt  Pt13  1  0.000  0.092  0.618  1.0
  Pt  Pt14  1  0.000  0.408  0.118  1.0
  Pt  Pt15  1  0.000  0.592  0.882  1.0
  Pt  Pt16  1  0.500  0.595  0.421  1.0
  Pt  Pt17  1  0.500  0.405  0.579  1.0
  Pt  Pt18  1  0.500  0.095  0.079  1.0
  Pt  Pt19  1  0.500  0.905  0.921  1.0
  Pt  Pt20  1  0.500  0.500  0.000  1.0
  Pt  Pt21  1  0.500  0.000  0.500  1.0
  Pt  Pt22  1  0.500  0.214  0.331  1.0
  Pt  Pt23  1  0.500  0.786  0.669  1.0
  Pt  Pt24  1  0.500  0.714  0.169  1.0
  Pt  Pt25  1  0.500  0.286  0.831  1.0
[/CIF]
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The crystal structure described by Sc4Pt7Si2 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 10-coordinate geometry to two equivalent Pt(1), two equivalent Pt(3), two equivalent Pt(4), and four equivalent Pt(2) atoms. In the second Sc site, Sc(2) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Pt(2), four equivalent Pt(4), and four equivalent Si(1) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Sc(1), two equivalent Sc(2), and two equivalent Si(1) atoms. In the second Pt site, Pt(2) is bonded in a 7-coordinate geometry to two equivalent Sc(2), four equivalent Sc(1), and one Si(1) atom. In the third Pt site, Pt(3) is bonded in a distorted square co-planar geometry to four equivalent Sc(1) atoms. In the fourth Pt site, Pt(4) is bonded in a 6-coordinate geometry to two equivalent Sc(1), four equivalent Sc(2), and two equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to four equivalent Sc(2), one Pt(2), two equivalent Pt(1), and two equivalent Pt(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sc4Si2Pt7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.995
_cell_length_b   6.510
_cell_length_c   16.281
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   423.413
_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
  Sc  Sc0  1  0.000  0.285  0.461  1.0
  Sc  Sc1  1  0.000  0.715  0.539  1.0
  Sc  Sc2  1  0.000  0.785  0.039  1.0
  Sc  Sc3  1  0.000  0.215  0.961  1.0
  Sc  Sc4  1  0.000  0.525  0.291  1.0
  Sc  Sc5  1  0.000  0.475  0.709  1.0
  Sc  Sc6  1  0.000  0.025  0.209  1.0
  Sc  Sc7  1  0.000  0.975  0.791  1.0
  Si  Si8  1  0.500  0.840  0.308  1.0
  Si  Si9  1  0.500  0.160  0.692  1.0
  Si  Si10  1  0.500  0.340  0.192  1.0
  Si  Si11  1  0.500  0.660  0.808  1.0
  Pt  Pt12  1  0.000  0.908  0.382  1.0
  Pt  Pt13  1  0.000  0.092  0.618  1.0
  Pt  Pt14  1  0.000  0.408  0.118  1.0
  Pt  Pt15  1  0.000  0.592  0.882  1.0
  Pt  Pt16  1  0.500  0.595  0.421  1.0
  Pt  Pt17  1  0.500  0.405  0.579  1.0
  Pt  Pt18  1  0.500  0.095  0.079  1.0
  Pt  Pt19  1  0.500  0.905  0.921  1.0
  Pt  Pt20  1  0.500  0.500  0.000  1.0
  Pt  Pt21  1  0.500  0.000  0.500  1.0
  Pt  Pt22  1  0.500  0.214  0.331  1.0
  Pt  Pt23  1  0.500  0.786  0.669  1.0
  Pt  Pt24  1  0.500  0.714  0.169  1.0
  Pt  Pt25  1  0.500  0.286  0.831  1.0
[/CIF]
.