The material described by SrRh2O4 crystallizes in the orthorhombic Pmmn space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(3) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(3) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form edge-sharing RhO6 octahedra. In the second Rh site, Rh(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form edge-sharing RhO6 octahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), one Rh(1), and two equivalent Rh(2) atoms to form OSrRh3 trigonal pyramids that share corners with four equivalent O(3)Sr2Rh3 trigonal bipyramids, corners with three equivalent O(1)SrRh3 trigonal pyramids, and edges with four equivalent O(3)Sr2Rh3 trigonal bipyramids. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Sr(1), one Rh(1), and two equivalent Rh(2) atoms. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Rh(2), and two equivalent Rh(1) atoms to form OSr2Rh3 trigonal bipyramids that share corners with five equivalent O(3)Sr2Rh3 trigonal bipyramids, corners with two equivalent O(1)SrRh3 trigonal pyramids, edges with four equivalent O(3)Sr2Rh3 trigonal bipyramids, and edges with two equivalent O(1)SrRh3 trigonal pyramids. is represented by the CIF file [CIF]
data_Sr(RhO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.366
_cell_length_b   6.185
_cell_length_c   11.339
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   376.276
_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  0.144  0.000  0.500  1.0
  Sr  Sr1  1  0.464  0.000  0.000  1.0
  Sr  Sr2  1  0.536  0.500  0.500  1.0
  Sr  Sr3  1  0.856  0.500  0.000  1.0
  Rh  Rh4  1  0.502  0.000  0.744  1.0
  Rh  Rh5  1  0.502  0.000  0.256  1.0
  Rh  Rh6  1  0.000  0.750  0.750  1.0
  Rh  Rh7  1  0.000  0.750  0.250  1.0
  Rh  Rh8  1  0.498  0.500  0.756  1.0
  Rh  Rh9  1  0.498  0.500  0.244  1.0
  Rh  Rh10  1  0.000  0.250  0.250  1.0
  Rh  Rh11  1  0.000  0.250  0.750  1.0
  O  O12  1  0.171  0.000  0.164  1.0
  O  O13  1  0.836  0.000  0.658  1.0
  O  O14  1  0.836  0.000  0.342  1.0
  O  O15  1  0.171  0.000  0.836  1.0
  O  O16  1  0.666  0.754  0.156  1.0
  O  O17  1  0.334  0.746  0.344  1.0
  O  O18  1  0.334  0.746  0.656  1.0
  O  O19  1  0.666  0.754  0.844  1.0
  O  O20  1  0.164  0.500  0.158  1.0
  O  O21  1  0.164  0.500  0.842  1.0
  O  O22  1  0.829  0.500  0.336  1.0
  O  O23  1  0.829  0.500  0.664  1.0
  O  O24  1  0.666  0.246  0.156  1.0
  O  O25  1  0.334  0.254  0.344  1.0
  O  O26  1  0.334  0.254  0.656  1.0
  O  O27  1  0.666  0.246  0.844  1.0
[/CIF]
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The material described by SrRh2O4 crystallizes in the orthorhombic Pmmn space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(3) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(3) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form edge-sharing RhO6 octahedra. In the second Rh site, Rh(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form edge-sharing RhO6 octahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), one Rh(1), and two equivalent Rh(2) atoms to form OSrRh3 trigonal pyramids that share corners with four equivalent O(3)Sr2Rh3 trigonal bipyramids, corners with three equivalent O(1)SrRh3 trigonal pyramids, and edges with four equivalent O(3)Sr2Rh3 trigonal bipyramids. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Sr(1), one Rh(1), and two equivalent Rh(2) atoms. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Rh(2), and two equivalent Rh(1) atoms to form OSr2Rh3 trigonal bipyramids that share corners with five equivalent O(3)Sr2Rh3 trigonal bipyramids, corners with two equivalent O(1)SrRh3 trigonal pyramids, edges with four equivalent O(3)Sr2Rh3 trigonal bipyramids, and edges with two equivalent O(1)SrRh3 trigonal pyramids. is represented by the CIF file [CIF]
data_Sr(RhO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.366
_cell_length_b   6.185
_cell_length_c   11.339
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   376.276
_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  0.144  0.000  0.500  1.0
  Sr  Sr1  1  0.464  0.000  0.000  1.0
  Sr  Sr2  1  0.536  0.500  0.500  1.0
  Sr  Sr3  1  0.856  0.500  0.000  1.0
  Rh  Rh4  1  0.502  0.000  0.744  1.0
  Rh  Rh5  1  0.502  0.000  0.256  1.0
  Rh  Rh6  1  0.000  0.750  0.750  1.0
  Rh  Rh7  1  0.000  0.750  0.250  1.0
  Rh  Rh8  1  0.498  0.500  0.756  1.0
  Rh  Rh9  1  0.498  0.500  0.244  1.0
  Rh  Rh10  1  0.000  0.250  0.250  1.0
  Rh  Rh11  1  0.000  0.250  0.750  1.0
  O  O12  1  0.171  0.000  0.164  1.0
  O  O13  1  0.836  0.000  0.658  1.0
  O  O14  1  0.836  0.000  0.342  1.0
  O  O15  1  0.171  0.000  0.836  1.0
  O  O16  1  0.666  0.754  0.156  1.0
  O  O17  1  0.334  0.746  0.344  1.0
  O  O18  1  0.334  0.746  0.656  1.0
  O  O19  1  0.666  0.754  0.844  1.0
  O  O20  1  0.164  0.500  0.158  1.0
  O  O21  1  0.164  0.500  0.842  1.0
  O  O22  1  0.829  0.500  0.336  1.0
  O  O23  1  0.829  0.500  0.664  1.0
  O  O24  1  0.666  0.246  0.156  1.0
  O  O25  1  0.334  0.254  0.344  1.0
  O  O26  1  0.334  0.254  0.656  1.0
  O  O27  1  0.666  0.246  0.844  1.0
[/CIF]
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