The crystal structure described by Sr2InF7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one F(1), one F(2), one F(4), one F(6), one F(7), two equivalent F(3), and two equivalent F(5) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one F(1), one F(2), one F(3), one F(5), one F(7), two equivalent F(4), and two equivalent F(6) atoms. In(1) is bonded in a distorted pentagonal bipyramidal geometry to one F(1), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(7) atom. There are seven inequivalent F sites. In the first F site, F(6) is bonded to one Sr(1), two equivalent Sr(2), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. In the second F site, F(7) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one In(1) atom. In the third F site, F(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one In(1) atom. In the fourth F site, F(2) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Sr(2), and one In(1) atom. In the fifth F site, F(3) is bonded to one Sr(2), two equivalent Sr(1), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. In the sixth F site, F(4) is bonded to one Sr(1), two equivalent Sr(2), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. In the seventh F site, F(5) is bonded to one Sr(2), two equivalent Sr(1), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. is represented by the CIF file [CIF]
data_Sr2InF7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.303
_cell_length_b   5.457
_cell_length_c   8.304
_cell_angle_alpha   89.348
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   557.453
_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  0.279  0.763  0.446  1.0
  Sr  Sr1  1  0.779  0.237  0.054  1.0
  Sr  Sr2  1  0.721  0.237  0.554  1.0
  Sr  Sr3  1  0.221  0.763  0.946  1.0
  Sr  Sr4  1  0.062  0.236  0.675  1.0
  Sr  Sr5  1  0.562  0.764  0.825  1.0
  Sr  Sr6  1  0.938  0.764  0.325  1.0
  Sr  Sr7  1  0.438  0.236  0.175  1.0
  In  In8  1  0.375  0.279  0.713  1.0
  In  In9  1  0.875  0.721  0.787  1.0
  In  In10  1  0.625  0.721  0.287  1.0
  In  In11  1  0.125  0.279  0.213  1.0
  F  F12  1  0.858  0.793  0.035  1.0
  F  F13  1  0.358  0.207  0.465  1.0
  F  F14  1  0.142  0.207  0.965  1.0
  F  F15  1  0.642  0.793  0.535  1.0
  F  F16  1  0.573  0.367  0.375  1.0
  F  F17  1  0.073  0.633  0.125  1.0
  F  F18  1  0.427  0.633  0.625  1.0
  F  F19  1  0.927  0.367  0.875  1.0
  F  F20  1  0.229  0.494  0.702  1.0
  F  F21  1  0.729  0.506  0.798  1.0
  F  F22  1  0.771  0.506  0.298  1.0
  F  F23  1  0.271  0.494  0.202  1.0
  F  F24  1  0.396  0.494  0.926  1.0
  F  F25  1  0.896  0.506  0.574  1.0
  F  F26  1  0.604  0.506  0.074  1.0
  F  F27  1  0.104  0.494  0.426  1.0
  F  F28  1  0.245  0.011  0.694  1.0
  F  F29  1  0.745  0.989  0.806  1.0
  F  F30  1  0.755  0.989  0.306  1.0
  F  F31  1  0.255  0.011  0.194  1.0
  F  F32  1  0.396  0.013  0.910  1.0
  F  F33  1  0.896  0.987  0.590  1.0
  F  F34  1  0.604  0.987  0.090  1.0
  F  F35  1  0.104  0.013  0.410  1.0
  F  F36  1  0.043  0.798  0.787  1.0
  F  F37  1  0.543  0.202  0.713  1.0
  F  F38  1  0.957  0.202  0.213  1.0
  F  F39  1  0.457  0.798  0.287  1.0
[/CIF]
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The crystal structure described by Sr2InF7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one F(1), one F(2), one F(4), one F(6), one F(7), two equivalent F(3), and two equivalent F(5) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one F(1), one F(2), one F(3), one F(5), one F(7), two equivalent F(4), and two equivalent F(6) atoms. In(1) is bonded in a distorted pentagonal bipyramidal geometry to one F(1), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(7) atom. There are seven inequivalent F sites. In the first F site, F(6) is bonded to one Sr(1), two equivalent Sr(2), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. In the second F site, F(7) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one In(1) atom. In the third F site, F(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one In(1) atom. In the fourth F site, F(2) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Sr(2), and one In(1) atom. In the fifth F site, F(3) is bonded to one Sr(2), two equivalent Sr(1), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. In the sixth F site, F(4) is bonded to one Sr(1), two equivalent Sr(2), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. In the seventh F site, F(5) is bonded to one Sr(2), two equivalent Sr(1), and one In(1) atom to form a mixture of corner and edge-sharing FSr3In tetrahedra. is represented by the CIF file [CIF]
data_Sr2InF7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.303
_cell_length_b   5.457
_cell_length_c   8.304
_cell_angle_alpha   89.348
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   557.453
_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  0.279  0.763  0.446  1.0
  Sr  Sr1  1  0.779  0.237  0.054  1.0
  Sr  Sr2  1  0.721  0.237  0.554  1.0
  Sr  Sr3  1  0.221  0.763  0.946  1.0
  Sr  Sr4  1  0.062  0.236  0.675  1.0
  Sr  Sr5  1  0.562  0.764  0.825  1.0
  Sr  Sr6  1  0.938  0.764  0.325  1.0
  Sr  Sr7  1  0.438  0.236  0.175  1.0
  In  In8  1  0.375  0.279  0.713  1.0
  In  In9  1  0.875  0.721  0.787  1.0
  In  In10  1  0.625  0.721  0.287  1.0
  In  In11  1  0.125  0.279  0.213  1.0
  F  F12  1  0.858  0.793  0.035  1.0
  F  F13  1  0.358  0.207  0.465  1.0
  F  F14  1  0.142  0.207  0.965  1.0
  F  F15  1  0.642  0.793  0.535  1.0
  F  F16  1  0.573  0.367  0.375  1.0
  F  F17  1  0.073  0.633  0.125  1.0
  F  F18  1  0.427  0.633  0.625  1.0
  F  F19  1  0.927  0.367  0.875  1.0
  F  F20  1  0.229  0.494  0.702  1.0
  F  F21  1  0.729  0.506  0.798  1.0
  F  F22  1  0.771  0.506  0.298  1.0
  F  F23  1  0.271  0.494  0.202  1.0
  F  F24  1  0.396  0.494  0.926  1.0
  F  F25  1  0.896  0.506  0.574  1.0
  F  F26  1  0.604  0.506  0.074  1.0
  F  F27  1  0.104  0.494  0.426  1.0
  F  F28  1  0.245  0.011  0.694  1.0
  F  F29  1  0.745  0.989  0.806  1.0
  F  F30  1  0.755  0.989  0.306  1.0
  F  F31  1  0.255  0.011  0.194  1.0
  F  F32  1  0.396  0.013  0.910  1.0
  F  F33  1  0.896  0.987  0.590  1.0
  F  F34  1  0.604  0.987  0.090  1.0
  F  F35  1  0.104  0.013  0.410  1.0
  F  F36  1  0.043  0.798  0.787  1.0
  F  F37  1  0.543  0.202  0.713  1.0
  F  F38  1  0.957  0.202  0.213  1.0
  F  F39  1  0.457  0.798  0.287  1.0
[/CIF]
.