The crystal structure described by RhPO4 crystallizes in the orthorhombic Imma space group. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form RhO6 octahedra that share corners with two equivalent Rh(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Rh(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. In the second Rh site, Rh(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form RhO6 octahedra that share corners with four equivalent Rh(1)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with two equivalent Rh(1)O6 octahedra, corners with two equivalent Rh(2)O6 octahedra, and  an edgeedge with one Rh(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-56°. In the second P site, P(2) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Rh(2)O6 octahedra and corners with four equivalent Rh(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-56°. There are four inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rh(1) and one P(1) atom. In the second O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Rh(2) and one P(2) atom. In the third O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Rh(1) and one P(2) atom. In the fourth O site, O(1) is bonded in a distorted trigonal planar geometry to one Rh(1), one Rh(2), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_PRhO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   8.979
_cell_length_c   8.979
_cell_angle_alpha   138.190
_cell_angle_beta   109.149
_cell_angle_gamma   85.791
_symmetry_Int_Tables_number   1
_cell_volume   438.777
_cell_formula_units_Z   6
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
  P  P0  1  0.174  0.674  0.000  1.0
  P  P1  1  0.326  0.326  0.500  1.0
  P  P2  1  0.826  0.326  1.000  1.0
  P  P3  1  0.674  0.674  0.500  1.0
  P  P4  1  0.750  0.830  0.080  1.0
  P  P5  1  0.250  0.170  0.920  1.0
  Rh  Rh6  1  0.119  0.119  0.500  1.0
  Rh  Rh7  1  0.381  0.881  1.000  1.0
  Rh  Rh8  1  0.881  0.881  0.500  1.0
  Rh  Rh9  1  0.619  0.119  0.000  1.0
  Rh  Rh10  1  0.500  0.500  1.000  1.0
  Rh  Rh11  1  1.000  1.000  1.000  1.0
  O  O12  1  0.144  0.784  0.915  1.0
  O  O13  1  0.356  0.271  0.640  1.0
  O  O14  1  0.131  0.216  0.360  1.0
  O  O15  1  0.369  0.729  0.085  1.0
  O  O16  1  0.856  0.216  0.085  1.0
  O  O17  1  0.644  0.729  0.360  1.0
  O  O18  1  0.869  0.784  0.640  1.0
  O  O19  1  0.631  0.271  0.915  1.0
  O  O20  1  0.914  0.578  0.215  1.0
  O  O21  1  0.586  0.801  0.664  1.0
  O  O22  1  0.637  0.422  0.336  1.0
  O  O23  1  0.863  0.199  0.785  1.0
  O  O24  1  0.154  0.202  0.048  1.0
  O  O25  1  0.346  0.394  0.048  1.0
  O  O26  1  0.846  0.798  0.952  1.0
  O  O27  1  0.654  0.606  0.952  1.0
  O  O28  1  0.628  0.976  0.104  1.0
  O  O29  1  0.872  0.976  0.348  1.0
  O  O30  1  0.128  0.024  0.652  1.0
  O  O31  1  0.372  0.024  0.896  1.0
  O  O32  1  0.137  0.801  0.215  1.0
  O  O33  1  0.363  0.578  0.664  1.0
  O  O34  1  0.414  0.199  0.336  1.0
  O  O35  1  0.086  0.422  0.785  1.0
[/CIF]
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The crystal structure described by RhPO4 crystallizes in the orthorhombic Imma space group. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form RhO6 octahedra that share corners with two equivalent Rh(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Rh(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. In the second Rh site, Rh(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form RhO6 octahedra that share corners with four equivalent Rh(1)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with two equivalent Rh(1)O6 octahedra, corners with two equivalent Rh(2)O6 octahedra, and  an edgeedge with one Rh(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-56°. In the second P site, P(2) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Rh(2)O6 octahedra and corners with four equivalent Rh(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-56°. There are four inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rh(1) and one P(1) atom. In the second O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Rh(2) and one P(2) atom. In the third O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Rh(1) and one P(2) atom. In the fourth O site, O(1) is bonded in a distorted trigonal planar geometry to one Rh(1), one Rh(2), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_PRhO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   8.979
_cell_length_c   8.979
_cell_angle_alpha   138.190
_cell_angle_beta   109.149
_cell_angle_gamma   85.791
_symmetry_Int_Tables_number   1
_cell_volume   438.777
_cell_formula_units_Z   6
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
  P  P0  1  0.174  0.674  0.000  1.0
  P  P1  1  0.326  0.326  0.500  1.0
  P  P2  1  0.826  0.326  1.000  1.0
  P  P3  1  0.674  0.674  0.500  1.0
  P  P4  1  0.750  0.830  0.080  1.0
  P  P5  1  0.250  0.170  0.920  1.0
  Rh  Rh6  1  0.119  0.119  0.500  1.0
  Rh  Rh7  1  0.381  0.881  1.000  1.0
  Rh  Rh8  1  0.881  0.881  0.500  1.0
  Rh  Rh9  1  0.619  0.119  0.000  1.0
  Rh  Rh10  1  0.500  0.500  1.000  1.0
  Rh  Rh11  1  1.000  1.000  1.000  1.0
  O  O12  1  0.144  0.784  0.915  1.0
  O  O13  1  0.356  0.271  0.640  1.0
  O  O14  1  0.131  0.216  0.360  1.0
  O  O15  1  0.369  0.729  0.085  1.0
  O  O16  1  0.856  0.216  0.085  1.0
  O  O17  1  0.644  0.729  0.360  1.0
  O  O18  1  0.869  0.784  0.640  1.0
  O  O19  1  0.631  0.271  0.915  1.0
  O  O20  1  0.914  0.578  0.215  1.0
  O  O21  1  0.586  0.801  0.664  1.0
  O  O22  1  0.637  0.422  0.336  1.0
  O  O23  1  0.863  0.199  0.785  1.0
  O  O24  1  0.154  0.202  0.048  1.0
  O  O25  1  0.346  0.394  0.048  1.0
  O  O26  1  0.846  0.798  0.952  1.0
  O  O27  1  0.654  0.606  0.952  1.0
  O  O28  1  0.628  0.976  0.104  1.0
  O  O29  1  0.872  0.976  0.348  1.0
  O  O30  1  0.128  0.024  0.652  1.0
  O  O31  1  0.372  0.024  0.896  1.0
  O  O32  1  0.137  0.801  0.215  1.0
  O  O33  1  0.363  0.578  0.664  1.0
  O  O34  1  0.414  0.199  0.336  1.0
  O  O35  1  0.086  0.422  0.785  1.0
[/CIF]
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