The compound described by Mg(Co2Ge3)2 crystallizes in the tetragonal I-42m space group. Mg(1) is bonded to four equivalent Co(1), four equivalent Ge(1), and four equivalent Ge(2) atoms to form distorted corner-sharing MgCo4Ge8 cuboctahedra. Co(1) is bonded in a 7-coordinate geometry to one Mg(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 5-coordinate geometry to one Mg(1) and four equivalent Co(1) atoms. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and four equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_Mg(Co2Ge3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.090
_cell_length_b   6.090
_cell_length_c   6.090
_cell_angle_alpha   119.894
_cell_angle_beta   119.894
_cell_angle_gamma   90.184
_symmetry_Int_Tables_number   1
_cell_volume   159.943
_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  0.000  0.000  0.000  1.0
  Co  Co1  1  0.398  0.398  0.638  1.0
  Co  Co2  1  0.760  0.760  0.362  1.0
  Co  Co3  1  0.602  0.240  0.000  1.0
  Co  Co4  1  0.240  0.602  0.000  1.0
  Ge  Ge5  1  0.461  0.461  0.332  1.0
  Ge  Ge6  1  0.129  0.129  0.668  1.0
  Ge  Ge7  1  0.539  0.871  0.000  1.0
  Ge  Ge8  1  0.871  0.539  0.000  1.0
  Ge  Ge9  1  0.500  0.000  0.500  1.0
  Ge  Ge10  1  0.000  0.500  0.500  1.0
[/CIF]
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The compound described by Mg(Co2Ge3)2 crystallizes in the tetragonal I-42m space group. Mg(1) is bonded to four equivalent Co(1), four equivalent Ge(1), and four equivalent Ge(2) atoms to form distorted corner-sharing MgCo4Ge8 cuboctahedra. Co(1) is bonded in a 7-coordinate geometry to one Mg(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 5-coordinate geometry to one Mg(1) and four equivalent Co(1) atoms. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and four equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_Mg(Co2Ge3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.090
_cell_length_b   6.090
_cell_length_c   6.090
_cell_angle_alpha   119.894
_cell_angle_beta   119.894
_cell_angle_gamma   90.184
_symmetry_Int_Tables_number   1
_cell_volume   159.943
_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  0.000  0.000  0.000  1.0
  Co  Co1  1  0.398  0.398  0.638  1.0
  Co  Co2  1  0.760  0.760  0.362  1.0
  Co  Co3  1  0.602  0.240  0.000  1.0
  Co  Co4  1  0.240  0.602  0.000  1.0
  Ge  Ge5  1  0.461  0.461  0.332  1.0
  Ge  Ge6  1  0.129  0.129  0.668  1.0
  Ge  Ge7  1  0.539  0.871  0.000  1.0
  Ge  Ge8  1  0.871  0.539  0.000  1.0
  Ge  Ge9  1  0.500  0.000  0.500  1.0
  Ge  Ge10  1  0.000  0.500  0.500  1.0
[/CIF]
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