The compound described by Y4Zn5Ge6 crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded in a 10-coordinate geometry to one Zn(4), two equivalent Zn(3), one Ge(6), two equivalent Ge(2), two equivalent Ge(4), and two equivalent Ge(5) atoms. In the second Y site, Y(2) is bonded to one Ge(1), one Ge(6), two equivalent Ge(2), and two equivalent Ge(3) atoms to form distorted YGe6 octahedra that share  a cornercorner with one Y(3)Ge6 octahedra,  a cornercorner with one Zn(2)Ge4 tetrahedra, edges with two equivalent Y(2)Ge6 octahedra, edges with two equivalent Y(3)Ge6 octahedra, and edges with two equivalent Zn(2)Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. In the third Y site, Y(3) is bonded to one Ge(3), one Ge(6), two equivalent Ge(1), and two equivalent Ge(4) atoms to form distorted YGe6 octahedra that share  a cornercorner with one Y(2)Ge6 octahedra,  a cornercorner with one Zn(2)Ge4 tetrahedra, edges with two equivalent Y(2)Ge6 octahedra, edges with two equivalent Y(3)Ge6 octahedra, and edges with two equivalent Zn(2)Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. In the fourth Y site, Y(4) is bonded in a 11-coordinate geometry to one Zn(4), two equivalent Zn(1), two equivalent Zn(5), two equivalent Ge(2), two equivalent Ge(4), and two equivalent Ge(5) atoms. There are five inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 4-coordinate geometry to two equivalent Y(4), one Ge(2), one Ge(5), and two equivalent Ge(1) atoms. In the second Zn site, Zn(2) is bonded to one Ge(1), one Ge(3), and two equivalent Ge(6) atoms to form distorted ZnGe4 tetrahedra that share  a cornercorner with one Y(2)Ge6 octahedra,  a cornercorner with one Y(3)Ge6 octahedra, corners with two equivalent Zn(2)Ge4 tetrahedra, edges with two equivalent Y(2)Ge6 octahedra, and edges with two equivalent Y(3)Ge6 octahedra. The corner-sharing octahedral tilt angles range from 13-15°. In the third Zn site, Zn(3) is bonded in a 4-coordinate geometry to two equivalent Y(1), one Ge(4), one Ge(5), and two equivalent Ge(3) atoms. In the fourth Zn site, Zn(4) is bonded in a 4-coordinate geometry to one Y(1), one Y(4), one Ge(1), one Ge(3), and two equivalent Ge(5) atoms. In the fifth Zn site, Zn(5) is bonded in a 4-coordinate geometry to two equivalent Y(4), one Ge(4), one Ge(5), and two equivalent Ge(6) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Y(2), two equivalent Y(3), one Zn(2), one Zn(4), and two equivalent Zn(1) atoms to form distorted edge-sharing GeY3Zn4 pentagonal bipyramids. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Y(1), two equivalent Y(2), two equivalent Y(4), one Zn(1), and one Ge(4) atom. In the third Ge site, Ge(3) is bonded to one Y(3), two equivalent Y(2), one Zn(2), one Zn(4), and two equivalent Zn(3) atoms to form distorted edge-sharing GeY3Zn4 pentagonal bipyramids. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(3), two equivalent Y(4), one Zn(3), one Zn(5), and one Ge(2) atom. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(4), one Zn(1), one Zn(3), one Zn(5), and two equivalent Zn(4) atoms. In the sixth Ge site, Ge(6) is bonded in a 7-coordinate geometry to one Y(1), one Y(2), one Y(3), two equivalent Zn(2), and two equivalent Zn(5) atoms. is represented by the CIF file [CIF]
data_Y4Zn5Ge6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.600
_cell_length_b   9.600
_cell_length_c   15.349
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   154.464
_symmetry_Int_Tables_number   1
_cell_volume   609.721
_cell_formula_units_Z   2
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  0.018  0.982  0.763  1.0
  Y  Y1  1  0.982  0.018  0.263  1.0
  Y  Y2  1  0.175  0.825  0.318  1.0
  Y  Y3  1  0.825  0.175  0.818  1.0
  Y  Y4  1  0.168  0.832  0.959  1.0
  Y  Y5  1  0.832  0.168  0.459  1.0
  Y  Y6  1  0.033  0.967  0.500  1.0
  Y  Y7  1  0.967  0.033  1.000  1.0
  Zn  Zn8  1  0.345  0.655  0.990  1.0
  Zn  Zn9  1  0.655  0.345  0.490  1.0
  Zn  Zn10  1  0.301  0.699  0.638  1.0
  Zn  Zn11  1  0.699  0.301  0.138  1.0
  Zn  Zn12  1  0.650  0.350  0.782  1.0
  Zn  Zn13  1  0.350  0.650  0.282  1.0
  Zn  Zn14  1  0.152  0.848  0.636  1.0
  Zn  Zn15  1  0.848  0.152  0.136  1.0
  Zn  Zn16  1  0.434  0.566  0.579  1.0
  Zn  Zn17  1  0.566  0.434  0.079  1.0
  Ge  Ge18  1  0.228  0.772  0.498  1.0
  Ge  Ge19  1  0.772  0.228  0.998  1.0
  Ge  Ge20  1  0.431  0.569  0.856  1.0
  Ge  Ge21  1  0.569  0.431  0.356  1.0
  Ge  Ge22  1  0.222  0.778  0.776  1.0
  Ge  Ge23  1  0.778  0.222  0.276  1.0
  Ge  Ge24  1  0.560  0.440  0.909  1.0
  Ge  Ge25  1  0.440  0.560  0.409  1.0
  Ge  Ge26  1  0.567  0.433  0.633  1.0
  Ge  Ge27  1  0.433  0.567  0.133  1.0
  Ge  Ge28  1  0.113  0.887  0.145  1.0
  Ge  Ge29  1  0.887  0.113  0.645  1.0
[/CIF]
.
The compound described by Y4Zn5Ge6 crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded in a 10-coordinate geometry to one Zn(4), two equivalent Zn(3), one Ge(6), two equivalent Ge(2), two equivalent Ge(4), and two equivalent Ge(5) atoms. In the second Y site, Y(2) is bonded to one Ge(1), one Ge(6), two equivalent Ge(2), and two equivalent Ge(3) atoms to form distorted YGe6 octahedra that share  a cornercorner with one Y(3)Ge6 octahedra,  a cornercorner with one Zn(2)Ge4 tetrahedra, edges with two equivalent Y(2)Ge6 octahedra, edges with two equivalent Y(3)Ge6 octahedra, and edges with two equivalent Zn(2)Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. In the third Y site, Y(3) is bonded to one Ge(3), one Ge(6), two equivalent Ge(1), and two equivalent Ge(4) atoms to form distorted YGe6 octahedra that share  a cornercorner with one Y(2)Ge6 octahedra,  a cornercorner with one Zn(2)Ge4 tetrahedra, edges with two equivalent Y(2)Ge6 octahedra, edges with two equivalent Y(3)Ge6 octahedra, and edges with two equivalent Zn(2)Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. In the fourth Y site, Y(4) is bonded in a 11-coordinate geometry to one Zn(4), two equivalent Zn(1), two equivalent Zn(5), two equivalent Ge(2), two equivalent Ge(4), and two equivalent Ge(5) atoms. There are five inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 4-coordinate geometry to two equivalent Y(4), one Ge(2), one Ge(5), and two equivalent Ge(1) atoms. In the second Zn site, Zn(2) is bonded to one Ge(1), one Ge(3), and two equivalent Ge(6) atoms to form distorted ZnGe4 tetrahedra that share  a cornercorner with one Y(2)Ge6 octahedra,  a cornercorner with one Y(3)Ge6 octahedra, corners with two equivalent Zn(2)Ge4 tetrahedra, edges with two equivalent Y(2)Ge6 octahedra, and edges with two equivalent Y(3)Ge6 octahedra. The corner-sharing octahedral tilt angles range from 13-15°. In the third Zn site, Zn(3) is bonded in a 4-coordinate geometry to two equivalent Y(1), one Ge(4), one Ge(5), and two equivalent Ge(3) atoms. In the fourth Zn site, Zn(4) is bonded in a 4-coordinate geometry to one Y(1), one Y(4), one Ge(1), one Ge(3), and two equivalent Ge(5) atoms. In the fifth Zn site, Zn(5) is bonded in a 4-coordinate geometry to two equivalent Y(4), one Ge(4), one Ge(5), and two equivalent Ge(6) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Y(2), two equivalent Y(3), one Zn(2), one Zn(4), and two equivalent Zn(1) atoms to form distorted edge-sharing GeY3Zn4 pentagonal bipyramids. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Y(1), two equivalent Y(2), two equivalent Y(4), one Zn(1), and one Ge(4) atom. In the third Ge site, Ge(3) is bonded to one Y(3), two equivalent Y(2), one Zn(2), one Zn(4), and two equivalent Zn(3) atoms to form distorted edge-sharing GeY3Zn4 pentagonal bipyramids. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(3), two equivalent Y(4), one Zn(3), one Zn(5), and one Ge(2) atom. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(4), one Zn(1), one Zn(3), one Zn(5), and two equivalent Zn(4) atoms. In the sixth Ge site, Ge(6) is bonded in a 7-coordinate geometry to one Y(1), one Y(2), one Y(3), two equivalent Zn(2), and two equivalent Zn(5) atoms. is represented by the CIF file [CIF]
data_Y4Zn5Ge6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.600
_cell_length_b   9.600
_cell_length_c   15.349
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   154.464
_symmetry_Int_Tables_number   1
_cell_volume   609.721
_cell_formula_units_Z   2
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  0.018  0.982  0.763  1.0
  Y  Y1  1  0.982  0.018  0.263  1.0
  Y  Y2  1  0.175  0.825  0.318  1.0
  Y  Y3  1  0.825  0.175  0.818  1.0
  Y  Y4  1  0.168  0.832  0.959  1.0
  Y  Y5  1  0.832  0.168  0.459  1.0
  Y  Y6  1  0.033  0.967  0.500  1.0
  Y  Y7  1  0.967  0.033  1.000  1.0
  Zn  Zn8  1  0.345  0.655  0.990  1.0
  Zn  Zn9  1  0.655  0.345  0.490  1.0
  Zn  Zn10  1  0.301  0.699  0.638  1.0
  Zn  Zn11  1  0.699  0.301  0.138  1.0
  Zn  Zn12  1  0.650  0.350  0.782  1.0
  Zn  Zn13  1  0.350  0.650  0.282  1.0
  Zn  Zn14  1  0.152  0.848  0.636  1.0
  Zn  Zn15  1  0.848  0.152  0.136  1.0
  Zn  Zn16  1  0.434  0.566  0.579  1.0
  Zn  Zn17  1  0.566  0.434  0.079  1.0
  Ge  Ge18  1  0.228  0.772  0.498  1.0
  Ge  Ge19  1  0.772  0.228  0.998  1.0
  Ge  Ge20  1  0.431  0.569  0.856  1.0
  Ge  Ge21  1  0.569  0.431  0.356  1.0
  Ge  Ge22  1  0.222  0.778  0.776  1.0
  Ge  Ge23  1  0.778  0.222  0.276  1.0
  Ge  Ge24  1  0.560  0.440  0.909  1.0
  Ge  Ge25  1  0.440  0.560  0.409  1.0
  Ge  Ge26  1  0.567  0.433  0.633  1.0
  Ge  Ge27  1  0.433  0.567  0.133  1.0
  Ge  Ge28  1  0.113  0.887  0.145  1.0
  Ge  Ge29  1  0.887  0.113  0.645  1.0
[/CIF]
.