The crystal structure described by YCo4Ge crystallizes in the orthorhombic Cmmm space group. Y(1) is bonded in a 18-coordinate geometry to six equivalent Co(1), eight equivalent Co(2), and four equivalent Ge(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to three equivalent Y(1), four equivalent Co(2), and two equivalent Ge(1) atoms. In the second Co site, Co(2) is bonded to four equivalent Y(1), two equivalent Co(2), four equivalent Co(1), and two equivalent Ge(1) atoms to form distorted CoY4Co6Ge2 cuboctahedra that share corners with four equivalent Ge(1)Y4Co8 cuboctahedra, corners with twelve equivalent Co(2)Y4Co6Ge2 cuboctahedra, edges with four equivalent Ge(1)Y4Co8 cuboctahedra, edges with six equivalent Co(2)Y4Co6Ge2 cuboctahedra, faces with four equivalent Ge(1)Y4Co8 cuboctahedra, and faces with six equivalent Co(2)Y4Co6Ge2 cuboctahedra. Ge(1) is bonded to four equivalent Y(1), four equivalent Co(1), and four equivalent Co(2) atoms to form distorted GeY4Co8 cuboctahedra that share corners with eight equivalent Co(2)Y4Co6Ge2 cuboctahedra, corners with eight equivalent Ge(1)Y4Co8 cuboctahedra, edges with two equivalent Ge(1)Y4Co8 cuboctahedra, edges with eight equivalent Co(2)Y4Co6Ge2 cuboctahedra, faces with two equivalent Ge(1)Y4Co8 cuboctahedra, and faces with eight equivalent Co(2)Y4Co6Ge2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YCo4Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.933
_cell_length_b   4.933
_cell_length_c   3.999
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.637
_symmetry_Int_Tables_number   1
_cell_volume   84.568
_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
  Y  Y0  1  0.000  0.000  0.000  1.0
  Co  Co1  1  0.668  0.332  0.000  1.0
  Co  Co2  1  0.332  0.668  0.000  1.0
  Co  Co3  1  0.500  0.000  0.500  1.0
  Co  Co4  1  0.000  0.500  0.500  1.0
  Ge  Ge5  1  0.500  0.500  0.500  1.0
[/CIF]
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The crystal structure described by YCo4Ge crystallizes in the orthorhombic Cmmm space group. Y(1) is bonded in a 18-coordinate geometry to six equivalent Co(1), eight equivalent Co(2), and four equivalent Ge(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to three equivalent Y(1), four equivalent Co(2), and two equivalent Ge(1) atoms. In the second Co site, Co(2) is bonded to four equivalent Y(1), two equivalent Co(2), four equivalent Co(1), and two equivalent Ge(1) atoms to form distorted CoY4Co6Ge2 cuboctahedra that share corners with four equivalent Ge(1)Y4Co8 cuboctahedra, corners with twelve equivalent Co(2)Y4Co6Ge2 cuboctahedra, edges with four equivalent Ge(1)Y4Co8 cuboctahedra, edges with six equivalent Co(2)Y4Co6Ge2 cuboctahedra, faces with four equivalent Ge(1)Y4Co8 cuboctahedra, and faces with six equivalent Co(2)Y4Co6Ge2 cuboctahedra. Ge(1) is bonded to four equivalent Y(1), four equivalent Co(1), and four equivalent Co(2) atoms to form distorted GeY4Co8 cuboctahedra that share corners with eight equivalent Co(2)Y4Co6Ge2 cuboctahedra, corners with eight equivalent Ge(1)Y4Co8 cuboctahedra, edges with two equivalent Ge(1)Y4Co8 cuboctahedra, edges with eight equivalent Co(2)Y4Co6Ge2 cuboctahedra, faces with two equivalent Ge(1)Y4Co8 cuboctahedra, and faces with eight equivalent Co(2)Y4Co6Ge2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YCo4Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.933
_cell_length_b   4.933
_cell_length_c   3.999
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.637
_symmetry_Int_Tables_number   1
_cell_volume   84.568
_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
  Y  Y0  1  0.000  0.000  0.000  1.0
  Co  Co1  1  0.668  0.332  0.000  1.0
  Co  Co2  1  0.332  0.668  0.000  1.0
  Co  Co3  1  0.500  0.000  0.500  1.0
  Co  Co4  1  0.000  0.500  0.500  1.0
  Ge  Ge5  1  0.500  0.500  0.500  1.0
[/CIF]
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