The crystal structure described by Sr2Rh7P6 crystallizes in the tetragonal P-42_1m space group. Sr(1) is bonded in a 18-coordinate geometry to four equivalent Rh(2), six equivalent Rh(1), four equivalent P(1), and four equivalent P(2) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 10-coordinate geometry to three equivalent Sr(1), one Rh(3), two equivalent Rh(2), one P(2), and three equivalent P(1) atoms. In the second Rh site, Rh(2) is bonded to four equivalent Sr(1), four equivalent Rh(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted RhSr4P4Rh4 tetrahedra that share corners with two equivalent Rh(3)P4Rh4 tetrahedra, corners with eight equivalent Rh(2)Sr4P4Rh4 tetrahedra,  an edgeedge with one Rh(2)Sr4P4Rh4 tetrahedra, edges with two equivalent Rh(3)P4Rh4 tetrahedra, and faces with two equivalent Rh(2)Sr4P4Rh4 tetrahedra. In the third Rh site, Rh(3) is bonded to four equivalent Rh(1) and four equivalent P(1) atoms to form a mixture of distorted corner and edge-sharing RhP4Rh4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to two equivalent Sr(1), one Rh(2), one Rh(3), and three equivalent Rh(1) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to four equivalent Sr(1), two equivalent Rh(1), two equivalent Rh(2), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2P6Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.121
_cell_length_b   11.121
_cell_length_c   4.104
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   507.535
_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  0.161  0.661  0.751  1.0
  Sr  Sr1  1  0.339  0.161  0.249  1.0
  Sr  Sr2  1  0.661  0.839  0.249  1.0
  Sr  Sr3  1  0.839  0.339  0.751  1.0
  P  P4  1  0.858  0.111  0.274  1.0
  P  P5  1  0.358  0.389  0.726  1.0
  P  P6  1  0.573  0.073  0.764  1.0
  P  P7  1  0.642  0.611  0.726  1.0
  P  P8  1  0.611  0.358  0.274  1.0
  P  P9  1  0.073  0.427  0.236  1.0
  P  P10  1  0.389  0.642  0.274  1.0
  P  P11  1  0.927  0.573  0.236  1.0
  P  P12  1  0.111  0.142  0.726  1.0
  P  P13  1  0.427  0.927  0.764  1.0
  P  P14  1  0.142  0.889  0.274  1.0
  P  P15  1  0.889  0.858  0.726  1.0
  Rh  Rh16  1  0.537  0.277  0.753  1.0
  Rh  Rh17  1  0.037  0.223  0.247  1.0
  Rh  Rh18  1  0.723  0.537  0.247  1.0
  Rh  Rh19  1  0.277  0.463  0.247  1.0
  Rh  Rh20  1  0.347  0.847  0.262  1.0
  Rh  Rh21  1  0.847  0.653  0.738  1.0
  Rh  Rh22  1  0.963  0.777  0.247  1.0
  Rh  Rh23  1  0.223  0.963  0.753  1.0
  Rh  Rh24  1  0.777  0.037  0.753  1.0
  Rh  Rh25  1  0.000  0.000  0.000  1.0
  Rh  Rh26  1  0.153  0.347  0.738  1.0
  Rh  Rh27  1  0.463  0.723  0.753  1.0
  Rh  Rh28  1  0.500  0.500  0.000  1.0
  Rh  Rh29  1  0.653  0.153  0.262  1.0
[/CIF]
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The crystal structure described by Sr2Rh7P6 crystallizes in the tetragonal P-42_1m space group. Sr(1) is bonded in a 18-coordinate geometry to four equivalent Rh(2), six equivalent Rh(1), four equivalent P(1), and four equivalent P(2) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 10-coordinate geometry to three equivalent Sr(1), one Rh(3), two equivalent Rh(2), one P(2), and three equivalent P(1) atoms. In the second Rh site, Rh(2) is bonded to four equivalent Sr(1), four equivalent Rh(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted RhSr4P4Rh4 tetrahedra that share corners with two equivalent Rh(3)P4Rh4 tetrahedra, corners with eight equivalent Rh(2)Sr4P4Rh4 tetrahedra,  an edgeedge with one Rh(2)Sr4P4Rh4 tetrahedra, edges with two equivalent Rh(3)P4Rh4 tetrahedra, and faces with two equivalent Rh(2)Sr4P4Rh4 tetrahedra. In the third Rh site, Rh(3) is bonded to four equivalent Rh(1) and four equivalent P(1) atoms to form a mixture of distorted corner and edge-sharing RhP4Rh4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to two equivalent Sr(1), one Rh(2), one Rh(3), and three equivalent Rh(1) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to four equivalent Sr(1), two equivalent Rh(1), two equivalent Rh(2), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2P6Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.121
_cell_length_b   11.121
_cell_length_c   4.104
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   507.535
_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  0.161  0.661  0.751  1.0
  Sr  Sr1  1  0.339  0.161  0.249  1.0
  Sr  Sr2  1  0.661  0.839  0.249  1.0
  Sr  Sr3  1  0.839  0.339  0.751  1.0
  P  P4  1  0.858  0.111  0.274  1.0
  P  P5  1  0.358  0.389  0.726  1.0
  P  P6  1  0.573  0.073  0.764  1.0
  P  P7  1  0.642  0.611  0.726  1.0
  P  P8  1  0.611  0.358  0.274  1.0
  P  P9  1  0.073  0.427  0.236  1.0
  P  P10  1  0.389  0.642  0.274  1.0
  P  P11  1  0.927  0.573  0.236  1.0
  P  P12  1  0.111  0.142  0.726  1.0
  P  P13  1  0.427  0.927  0.764  1.0
  P  P14  1  0.142  0.889  0.274  1.0
  P  P15  1  0.889  0.858  0.726  1.0
  Rh  Rh16  1  0.537  0.277  0.753  1.0
  Rh  Rh17  1  0.037  0.223  0.247  1.0
  Rh  Rh18  1  0.723  0.537  0.247  1.0
  Rh  Rh19  1  0.277  0.463  0.247  1.0
  Rh  Rh20  1  0.347  0.847  0.262  1.0
  Rh  Rh21  1  0.847  0.653  0.738  1.0
  Rh  Rh22  1  0.963  0.777  0.247  1.0
  Rh  Rh23  1  0.223  0.963  0.753  1.0
  Rh  Rh24  1  0.777  0.037  0.753  1.0
  Rh  Rh25  1  0.000  0.000  0.000  1.0
  Rh  Rh26  1  0.153  0.347  0.738  1.0
  Rh  Rh27  1  0.463  0.723  0.753  1.0
  Rh  Rh28  1  0.500  0.500  0.000  1.0
  Rh  Rh29  1  0.653  0.153  0.262  1.0
[/CIF]
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