The structure described by Na3Pt9B5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 16-coordinate geometry to two equivalent Na(2), four equivalent Pt(2), four equivalent Pt(3), four equivalent Pt(4), and two equivalent B(3) atoms. In the second Na site, Na(2) is bonded in a 14-coordinate geometry to one Na(1), one Na(2), two equivalent Pt(1), two equivalent Pt(2), two equivalent Pt(3), and six equivalent Pt(4) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 4-coordinate geometry to four equivalent Na(2), two equivalent B(1), and two equivalent B(2) atoms. In the second Pt site, Pt(2) is bonded in a 3-coordinate geometry to two equivalent Na(1), two equivalent Na(2), one B(3), and two equivalent B(1) atoms. In the third Pt site, Pt(3) is bonded in a 3-coordinate geometry to two equivalent Na(1), two equivalent Na(2), one B(1), one B(2), and one B(3) atom. In the fourth Pt site, Pt(4) is bonded in a 3-coordinate geometry to one Na(1), three equivalent Na(2), one B(1), and two equivalent B(2) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to one Pt(1), one Pt(3), two equivalent Pt(2), and two equivalent Pt(4) atoms. In the second B site, B(2) is bonded to one Pt(1), one Pt(3), and four equivalent Pt(4) atoms to form a mixture of distorted edge and corner-sharing BPt6 pentagonal pyramids. In the third B site, B(3) is bonded in a 6-coordinate geometry to two equivalent Na(1), two equivalent Pt(2), and two equivalent Pt(3) atoms. is represented by the CIF file [CIF]
data_Na3B5Pt9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.363
_cell_length_b   6.363
_cell_length_c   15.173
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   128.148
_symmetry_Int_Tables_number   1
_cell_volume   483.186
_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
  Na  Na0  1  0.314  0.686  0.750  1.0
  Na  Na1  1  0.686  0.314  0.250  1.0
  Na  Na2  1  0.559  0.441  0.086  1.0
  Na  Na3  1  0.441  0.559  0.914  1.0
  Na  Na4  1  0.441  0.559  0.586  1.0
  Na  Na5  1  0.559  0.441  0.414  1.0
  B  B6  1  0.945  0.055  0.147  1.0
  B  B7  1  0.055  0.945  0.853  1.0
  B  B8  1  0.055  0.945  0.647  1.0
  B  B9  1  0.945  0.055  0.353  1.0
  B  B10  1  0.189  0.811  0.028  1.0
  B  B11  1  0.811  0.189  0.972  1.0
  B  B12  1  0.811  0.189  0.528  1.0
  B  B13  1  0.189  0.811  0.472  1.0
  B  B14  1  0.728  0.272  0.750  1.0
  B  B15  1  0.272  0.728  0.250  1.0
  Pt  Pt16  1  0.000  0.000  0.000  1.0
  Pt  Pt17  1  0.000  0.000  0.500  1.0
  Pt  Pt18  1  0.658  0.834  0.250  1.0
  Pt  Pt19  1  0.834  0.658  0.750  1.0
  Pt  Pt20  1  0.342  0.166  0.750  1.0
  Pt  Pt21  1  0.166  0.342  0.250  1.0
  Pt  Pt22  1  0.128  0.872  0.157  1.0
  Pt  Pt23  1  0.872  0.128  0.843  1.0
  Pt  Pt24  1  0.872  0.128  0.657  1.0
  Pt  Pt25  1  0.128  0.872  0.343  1.0
  Pt  Pt26  1  0.569  0.936  0.079  1.0
  Pt  Pt27  1  0.936  0.569  0.921  1.0
  Pt  Pt28  1  0.431  0.064  0.579  1.0
  Pt  Pt29  1  0.064  0.431  0.421  1.0
  Pt  Pt30  1  0.431  0.064  0.921  1.0
  Pt  Pt31  1  0.064  0.431  0.079  1.0
  Pt  Pt32  1  0.569  0.936  0.421  1.0
  Pt  Pt33  1  0.936  0.569  0.579  1.0
[/CIF]
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The structure described by Na3Pt9B5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 16-coordinate geometry to two equivalent Na(2), four equivalent Pt(2), four equivalent Pt(3), four equivalent Pt(4), and two equivalent B(3) atoms. In the second Na site, Na(2) is bonded in a 14-coordinate geometry to one Na(1), one Na(2), two equivalent Pt(1), two equivalent Pt(2), two equivalent Pt(3), and six equivalent Pt(4) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 4-coordinate geometry to four equivalent Na(2), two equivalent B(1), and two equivalent B(2) atoms. In the second Pt site, Pt(2) is bonded in a 3-coordinate geometry to two equivalent Na(1), two equivalent Na(2), one B(3), and two equivalent B(1) atoms. In the third Pt site, Pt(3) is bonded in a 3-coordinate geometry to two equivalent Na(1), two equivalent Na(2), one B(1), one B(2), and one B(3) atom. In the fourth Pt site, Pt(4) is bonded in a 3-coordinate geometry to one Na(1), three equivalent Na(2), one B(1), and two equivalent B(2) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to one Pt(1), one Pt(3), two equivalent Pt(2), and two equivalent Pt(4) atoms. In the second B site, B(2) is bonded to one Pt(1), one Pt(3), and four equivalent Pt(4) atoms to form a mixture of distorted edge and corner-sharing BPt6 pentagonal pyramids. In the third B site, B(3) is bonded in a 6-coordinate geometry to two equivalent Na(1), two equivalent Pt(2), and two equivalent Pt(3) atoms. is represented by the CIF file [CIF]
data_Na3B5Pt9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.363
_cell_length_b   6.363
_cell_length_c   15.173
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   128.148
_symmetry_Int_Tables_number   1
_cell_volume   483.186
_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
  Na  Na0  1  0.314  0.686  0.750  1.0
  Na  Na1  1  0.686  0.314  0.250  1.0
  Na  Na2  1  0.559  0.441  0.086  1.0
  Na  Na3  1  0.441  0.559  0.914  1.0
  Na  Na4  1  0.441  0.559  0.586  1.0
  Na  Na5  1  0.559  0.441  0.414  1.0
  B  B6  1  0.945  0.055  0.147  1.0
  B  B7  1  0.055  0.945  0.853  1.0
  B  B8  1  0.055  0.945  0.647  1.0
  B  B9  1  0.945  0.055  0.353  1.0
  B  B10  1  0.189  0.811  0.028  1.0
  B  B11  1  0.811  0.189  0.972  1.0
  B  B12  1  0.811  0.189  0.528  1.0
  B  B13  1  0.189  0.811  0.472  1.0
  B  B14  1  0.728  0.272  0.750  1.0
  B  B15  1  0.272  0.728  0.250  1.0
  Pt  Pt16  1  0.000  0.000  0.000  1.0
  Pt  Pt17  1  0.000  0.000  0.500  1.0
  Pt  Pt18  1  0.658  0.834  0.250  1.0
  Pt  Pt19  1  0.834  0.658  0.750  1.0
  Pt  Pt20  1  0.342  0.166  0.750  1.0
  Pt  Pt21  1  0.166  0.342  0.250  1.0
  Pt  Pt22  1  0.128  0.872  0.157  1.0
  Pt  Pt23  1  0.872  0.128  0.843  1.0
  Pt  Pt24  1  0.872  0.128  0.657  1.0
  Pt  Pt25  1  0.128  0.872  0.343  1.0
  Pt  Pt26  1  0.569  0.936  0.079  1.0
  Pt  Pt27  1  0.936  0.569  0.921  1.0
  Pt  Pt28  1  0.431  0.064  0.579  1.0
  Pt  Pt29  1  0.064  0.431  0.421  1.0
  Pt  Pt30  1  0.431  0.064  0.921  1.0
  Pt  Pt31  1  0.064  0.431  0.079  1.0
  Pt  Pt32  1  0.569  0.936  0.421  1.0
  Pt  Pt33  1  0.936  0.569  0.579  1.0
[/CIF]
.