The material described by MgCu2(RhO2)4 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a distorted body-centered cubic geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 7-coordinate geometry to one Mg(1), one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. In the second Rh site, Rh(2) is bonded in a 7-coordinate geometry to one Mg(1), one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Rh(1), two equivalent Rh(2), and one Cu(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Rh(2), two equivalent Rh(1), and one Cu(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), one Rh(2), two equivalent Rh(1), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one Rh(1), two equivalent Rh(2), and one Cu(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgCu2(RhO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.510
_cell_length_b   6.513
_cell_length_c   6.512
_cell_angle_alpha   90.049
_cell_angle_beta   119.949
_cell_angle_gamma   119.995
_symmetry_Int_Tables_number   1
_cell_volume   195.328
_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  0.499  0.250  0.750  1.0
  Cu  Cu1  1  0.001  1.000  0.001  1.0
  Cu  Cu2  1  0.502  0.751  0.251  1.0
  Rh  Rh3  1  0.776  0.388  0.163  1.0
  Rh  Rh4  1  0.775  0.388  0.612  1.0
  Rh  Rh5  1  0.224  0.388  0.612  1.0
  Rh  Rh6  1  0.224  0.836  0.612  1.0
  O  O7  1  0.221  0.610  0.389  1.0
  O  O8  1  0.779  0.168  0.389  1.0
  O  O9  1  0.738  0.131  0.869  1.0
  O  O10  1  0.779  0.610  0.390  1.0
  O  O11  1  0.221  0.610  0.831  1.0
  O  O12  1  0.261  0.130  0.869  1.0
  O  O13  1  0.262  0.131  0.392  1.0
  O  O14  1  0.739  0.608  0.869  1.0
[/CIF]
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The material described by MgCu2(RhO2)4 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a distorted body-centered cubic geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 7-coordinate geometry to one Mg(1), one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. In the second Rh site, Rh(2) is bonded in a 7-coordinate geometry to one Mg(1), one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Rh(1), two equivalent Rh(2), and one Cu(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Rh(2), two equivalent Rh(1), and one Cu(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), one Rh(2), two equivalent Rh(1), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one Rh(1), two equivalent Rh(2), and one Cu(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgCu2(RhO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.510
_cell_length_b   6.513
_cell_length_c   6.512
_cell_angle_alpha   90.049
_cell_angle_beta   119.949
_cell_angle_gamma   119.995
_symmetry_Int_Tables_number   1
_cell_volume   195.328
_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  0.499  0.250  0.750  1.0
  Cu  Cu1  1  0.001  1.000  0.001  1.0
  Cu  Cu2  1  0.502  0.751  0.251  1.0
  Rh  Rh3  1  0.776  0.388  0.163  1.0
  Rh  Rh4  1  0.775  0.388  0.612  1.0
  Rh  Rh5  1  0.224  0.388  0.612  1.0
  Rh  Rh6  1  0.224  0.836  0.612  1.0
  O  O7  1  0.221  0.610  0.389  1.0
  O  O8  1  0.779  0.168  0.389  1.0
  O  O9  1  0.738  0.131  0.869  1.0
  O  O10  1  0.779  0.610  0.390  1.0
  O  O11  1  0.221  0.610  0.831  1.0
  O  O12  1  0.261  0.130  0.869  1.0
  O  O13  1  0.262  0.131  0.392  1.0
  O  O14  1  0.739  0.608  0.869  1.0
[/CIF]
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