The compound described by Sr5Pb3F crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted square co-planar geometry to two equivalent Pb(1) and four equivalent Pb(2) atoms. In the second Sr site, Sr(2) is bonded in a single-bond geometry to two equivalent Pb(1), three equivalent Pb(2), and one F(1) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 10-coordinate geometry to two equivalent Sr(1) and eight equivalent Sr(2) atoms. In the second Pb site, Pb(2) is bonded in a 9-coordinate geometry to two equivalent Sr(1), six equivalent Sr(2), and one Pb(2) atom. F(1) is bonded in a tetrahedral geometry to four equivalent Sr(2) atoms. is represented by the CIF card [CIF]
data_Sr5Pb3F
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.131
_cell_length_b   10.131
_cell_length_c   10.131
_cell_angle_alpha   129.155
_cell_angle_beta   129.155
_cell_angle_gamma   74.774
_symmetry_Int_Tables_number   1
_cell_volume   609.004
_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
  Sr  Sr0  1  0.500  0.500  0.000  1.0
  Sr  Sr1  1  0.000  0.000  0.000  1.0
  Sr  Sr2  1  0.507  0.007  0.819  1.0
  Sr  Sr3  1  0.188  0.688  0.181  1.0
  Sr  Sr4  1  0.007  0.188  0.500  1.0
  Sr  Sr5  1  0.688  0.507  0.500  1.0
  Sr  Sr6  1  0.493  0.993  0.181  1.0
  Sr  Sr7  1  0.812  0.312  0.819  1.0
  Sr  Sr8  1  0.993  0.812  0.500  1.0
  Sr  Sr9  1  0.312  0.493  0.500  1.0
  Pb  Pb10  1  0.250  0.250  0.000  1.0
  Pb  Pb11  1  0.750  0.750  0.000  1.0
  Pb  Pb12  1  0.874  0.374  0.248  1.0
  Pb  Pb13  1  0.126  0.626  0.752  1.0
  Pb  Pb14  1  0.374  0.126  0.500  1.0
  Pb  Pb15  1  0.626  0.874  0.500  1.0
  F  F16  1  0.250  0.750  0.500  1.0
  F  F17  1  0.750  0.250  0.500  1.0
[/CIF]
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The compound described by Sr5Pb3F crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted square co-planar geometry to two equivalent Pb(1) and four equivalent Pb(2) atoms. In the second Sr site, Sr(2) is bonded in a single-bond geometry to two equivalent Pb(1), three equivalent Pb(2), and one F(1) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 10-coordinate geometry to two equivalent Sr(1) and eight equivalent Sr(2) atoms. In the second Pb site, Pb(2) is bonded in a 9-coordinate geometry to two equivalent Sr(1), six equivalent Sr(2), and one Pb(2) atom. F(1) is bonded in a tetrahedral geometry to four equivalent Sr(2) atoms. is represented by the CIF card [CIF]
data_Sr5Pb3F
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.131
_cell_length_b   10.131
_cell_length_c   10.131
_cell_angle_alpha   129.155
_cell_angle_beta   129.155
_cell_angle_gamma   74.774
_symmetry_Int_Tables_number   1
_cell_volume   609.004
_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
  Sr  Sr0  1  0.500  0.500  0.000  1.0
  Sr  Sr1  1  0.000  0.000  0.000  1.0
  Sr  Sr2  1  0.507  0.007  0.819  1.0
  Sr  Sr3  1  0.188  0.688  0.181  1.0
  Sr  Sr4  1  0.007  0.188  0.500  1.0
  Sr  Sr5  1  0.688  0.507  0.500  1.0
  Sr  Sr6  1  0.493  0.993  0.181  1.0
  Sr  Sr7  1  0.812  0.312  0.819  1.0
  Sr  Sr8  1  0.993  0.812  0.500  1.0
  Sr  Sr9  1  0.312  0.493  0.500  1.0
  Pb  Pb10  1  0.250  0.250  0.000  1.0
  Pb  Pb11  1  0.750  0.750  0.000  1.0
  Pb  Pb12  1  0.874  0.374  0.248  1.0
  Pb  Pb13  1  0.126  0.626  0.752  1.0
  Pb  Pb14  1  0.374  0.126  0.500  1.0
  Pb  Pb15  1  0.626  0.874  0.500  1.0
  F  F16  1  0.250  0.750  0.500  1.0
  F  F17  1  0.750  0.250  0.500  1.0
[/CIF]
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