The structure described by MgRh3 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Rh(2) and six equivalent Rh(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1) atoms. In the second Rh site, Rh(2) is bonded to four equivalent Mg(1) atoms to form a mixture of distorted corner and edge-sharing RhMg4 cuboctahedra. is represented by the CIF file [CIF]
data_MgRh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.757
_cell_length_b   5.141
_cell_length_c   4.714
_cell_angle_alpha   62.713
_cell_angle_beta   90.000
_cell_angle_gamma   74.446
_symmetry_Int_Tables_number   1
_cell_volume   56.612
_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  0.750  0.500  0.084  1.0
  Rh  Rh1  1  0.996  0.008  0.002  1.0
  Rh  Rh2  1  0.504  0.992  0.509  1.0
  Rh  Rh3  1  0.250  0.500  0.571  1.0
[/CIF]
.
The structure described by MgRh3 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Rh(2) and six equivalent Rh(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1) atoms. In the second Rh site, Rh(2) is bonded to four equivalent Mg(1) atoms to form a mixture of distorted corner and edge-sharing RhMg4 cuboctahedra. is represented by the CIF file [CIF]
data_MgRh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.757
_cell_length_b   5.141
_cell_length_c   4.714
_cell_angle_alpha   62.713
_cell_angle_beta   90.000
_cell_angle_gamma   74.446
_symmetry_Int_Tables_number   1
_cell_volume   56.612
_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  0.750  0.500  0.084  1.0
  Rh  Rh1  1  0.996  0.008  0.002  1.0
  Rh  Rh2  1  0.504  0.992  0.509  1.0
  Rh  Rh3  1  0.250  0.500  0.571  1.0
[/CIF]
.