The material described by MgV2(RhO4)2 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a 4-coordinate geometry to one O(5), one O(6), and two equivalent O(1) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms to form VO6 octahedra that share edges with two equivalent Rh(1)O6 octahedra. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms to form RhO6 octahedra that share edges with two equivalent V(1)O6 octahedra. In the second Rh site, Rh(2) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(2) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one V(1), one V(2), and one Rh(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(2), one Rh(1), and one Rh(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(1), one V(2), and one Rh(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Rh(1), and one Rh(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one V(1), and one Rh(1) atom. In the sixth O site, O(6) is bonded in a T-shaped geometry to one Mg(1), one V(1), and one Rh(1) atom. is represented by the CIF file [CIF]
data_MgV2(RhO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.077
_cell_length_b   5.947
_cell_length_c   6.077
_cell_angle_alpha   86.947
_cell_angle_beta   115.840
_cell_angle_gamma   58.455
_symmetry_Int_Tables_number   1
_cell_volume   156.705
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.772  0.022  0.206  1.0
  V  V1  1  0.275  0.223  0.502  1.0
  V  V2  1  0.002  0.089  0.909  1.0
  Rh  Rh3  1  0.737  0.734  0.528  1.0
  Rh  Rh4  1  0.482  0.563  0.954  1.0
  O  O5  1  0.586  0.227  0.817  1.0
  O  O6  1  0.035  0.773  0.813  1.0
  O  O7  1  0.010  0.295  0.695  1.0
  O  O8  1  0.472  0.845  0.683  1.0
  O  O9  1  0.005  0.619  0.376  1.0
  O  O10  1  0.503  0.156  0.341  1.0
  O  O11  1  0.956  0.227  0.186  1.0
  O  O12  1  0.414  0.773  0.192  1.0
[/CIF]
.
The material described by MgV2(RhO4)2 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a 4-coordinate geometry to one O(5), one O(6), and two equivalent O(1) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms to form VO6 octahedra that share edges with two equivalent Rh(1)O6 octahedra. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms to form RhO6 octahedra that share edges with two equivalent V(1)O6 octahedra. In the second Rh site, Rh(2) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(2) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one V(1), one V(2), and one Rh(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(2), one Rh(1), and one Rh(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(1), one V(2), and one Rh(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Rh(1), and one Rh(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one V(1), and one Rh(1) atom. In the sixth O site, O(6) is bonded in a T-shaped geometry to one Mg(1), one V(1), and one Rh(1) atom. is represented by the CIF file [CIF]
data_MgV2(RhO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.077
_cell_length_b   5.947
_cell_length_c   6.077
_cell_angle_alpha   86.947
_cell_angle_beta   115.840
_cell_angle_gamma   58.455
_symmetry_Int_Tables_number   1
_cell_volume   156.705
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.772  0.022  0.206  1.0
  V  V1  1  0.275  0.223  0.502  1.0
  V  V2  1  0.002  0.089  0.909  1.0
  Rh  Rh3  1  0.737  0.734  0.528  1.0
  Rh  Rh4  1  0.482  0.563  0.954  1.0
  O  O5  1  0.586  0.227  0.817  1.0
  O  O6  1  0.035  0.773  0.813  1.0
  O  O7  1  0.010  0.295  0.695  1.0
  O  O8  1  0.472  0.845  0.683  1.0
  O  O9  1  0.005  0.619  0.376  1.0
  O  O10  1  0.503  0.156  0.341  1.0
  O  O11  1  0.956  0.227  0.186  1.0
  O  O12  1  0.414  0.773  0.192  1.0
[/CIF]
.