The structure described by Yb2AlGe3 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 10-coordinate geometry to three equivalent Al(1), two equivalent Ge(2), two equivalent Ge(3), and three equivalent Ge(1) atoms. In the second Yb site, Yb(2) is bonded in a 9-coordinate geometry to one Ge(1), four equivalent Ge(2), and four equivalent Ge(3) atoms. Al(1) is bonded to three equivalent Yb(1), one Ge(3), and three equivalent Ge(1) atoms to form distorted AlYb3Ge4 tetrahedra that share corners with seven equivalent Ge(1)Yb4Al3 pentagonal bipyramids,  an edgeedge with one Ge(1)Yb4Al3 pentagonal bipyramid, edges with two equivalent Al(1)Yb3Ge4 tetrahedra, and faces with two equivalent Al(1)Yb3Ge4 tetrahedra. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Yb(2), three equivalent Yb(1), and three equivalent Al(1) atoms to form distorted GeYb4Al3 pentagonal bipyramids that share corners with seven equivalent Al(1)Yb3Ge4 tetrahedra, edges with six equivalent Ge(1)Yb4Al3 pentagonal bipyramids, and  an edgeedge with one Al(1)Yb3Ge4 tetrahedra. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Yb(1), four equivalent Yb(2), and two equivalent Ge(3) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Yb(1), four equivalent Yb(2), one Al(1), and two equivalent Ge(2) atoms. is represented by the CIF file [CIF]
data_Yb2AlGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.140
_cell_length_b   6.899
_cell_length_c   18.255
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   521.354
_cell_formula_units_Z   4
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
  Yb  Yb0  1  0.750  0.840  0.920  1.0
  Yb  Yb1  1  0.250  0.660  0.420  1.0
  Yb  Yb2  1  0.750  0.340  0.580  1.0
  Yb  Yb3  1  0.250  0.160  0.080  1.0
  Yb  Yb4  1  0.750  0.795  0.699  1.0
  Yb  Yb5  1  0.250  0.705  0.199  1.0
  Yb  Yb6  1  0.750  0.295  0.801  1.0
  Yb  Yb7  1  0.250  0.205  0.301  1.0
  Al  Al8  1  0.750  0.538  0.059  1.0
  Al  Al9  1  0.250  0.962  0.559  1.0
  Al  Al10  1  0.750  0.038  0.441  1.0
  Al  Al11  1  0.250  0.462  0.941  1.0
  Ge  Ge12  1  0.750  0.758  0.535  1.0
  Ge  Ge13  1  0.250  0.742  0.035  1.0
  Ge  Ge14  1  0.750  0.258  0.965  1.0
  Ge  Ge15  1  0.250  0.242  0.465  1.0
  Ge  Ge16  1  0.750  0.525  0.311  1.0
  Ge  Ge17  1  0.250  0.975  0.811  1.0
  Ge  Ge18  1  0.750  0.025  0.189  1.0
  Ge  Ge19  1  0.250  0.475  0.689  1.0
  Ge  Ge20  1  0.750  0.882  0.313  1.0
  Ge  Ge21  1  0.250  0.618  0.813  1.0
  Ge  Ge22  1  0.750  0.382  0.187  1.0
  Ge  Ge23  1  0.250  0.118  0.687  1.0
[/CIF]
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The structure described by Yb2AlGe3 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 10-coordinate geometry to three equivalent Al(1), two equivalent Ge(2), two equivalent Ge(3), and three equivalent Ge(1) atoms. In the second Yb site, Yb(2) is bonded in a 9-coordinate geometry to one Ge(1), four equivalent Ge(2), and four equivalent Ge(3) atoms. Al(1) is bonded to three equivalent Yb(1), one Ge(3), and three equivalent Ge(1) atoms to form distorted AlYb3Ge4 tetrahedra that share corners with seven equivalent Ge(1)Yb4Al3 pentagonal bipyramids,  an edgeedge with one Ge(1)Yb4Al3 pentagonal bipyramid, edges with two equivalent Al(1)Yb3Ge4 tetrahedra, and faces with two equivalent Al(1)Yb3Ge4 tetrahedra. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one Yb(2), three equivalent Yb(1), and three equivalent Al(1) atoms to form distorted GeYb4Al3 pentagonal bipyramids that share corners with seven equivalent Al(1)Yb3Ge4 tetrahedra, edges with six equivalent Ge(1)Yb4Al3 pentagonal bipyramids, and  an edgeedge with one Al(1)Yb3Ge4 tetrahedra. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Yb(1), four equivalent Yb(2), and two equivalent Ge(3) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Yb(1), four equivalent Yb(2), one Al(1), and two equivalent Ge(2) atoms. is represented by the CIF file [CIF]
data_Yb2AlGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.140
_cell_length_b   6.899
_cell_length_c   18.255
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   521.354
_cell_formula_units_Z   4
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
  Yb  Yb0  1  0.750  0.840  0.920  1.0
  Yb  Yb1  1  0.250  0.660  0.420  1.0
  Yb  Yb2  1  0.750  0.340  0.580  1.0
  Yb  Yb3  1  0.250  0.160  0.080  1.0
  Yb  Yb4  1  0.750  0.795  0.699  1.0
  Yb  Yb5  1  0.250  0.705  0.199  1.0
  Yb  Yb6  1  0.750  0.295  0.801  1.0
  Yb  Yb7  1  0.250  0.205  0.301  1.0
  Al  Al8  1  0.750  0.538  0.059  1.0
  Al  Al9  1  0.250  0.962  0.559  1.0
  Al  Al10  1  0.750  0.038  0.441  1.0
  Al  Al11  1  0.250  0.462  0.941  1.0
  Ge  Ge12  1  0.750  0.758  0.535  1.0
  Ge  Ge13  1  0.250  0.742  0.035  1.0
  Ge  Ge14  1  0.750  0.258  0.965  1.0
  Ge  Ge15  1  0.250  0.242  0.465  1.0
  Ge  Ge16  1  0.750  0.525  0.311  1.0
  Ge  Ge17  1  0.250  0.975  0.811  1.0
  Ge  Ge18  1  0.750  0.025  0.189  1.0
  Ge  Ge19  1  0.250  0.475  0.689  1.0
  Ge  Ge20  1  0.750  0.882  0.313  1.0
  Ge  Ge21  1  0.250  0.618  0.813  1.0
  Ge  Ge22  1  0.750  0.382  0.187  1.0
  Ge  Ge23  1  0.250  0.118  0.687  1.0
[/CIF]
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