The material structure described by Li2Pr2Ge3 crystallizes in the orthorhombic Cmcm space group. Li(1) is bonded to three equivalent Pr(2), one Ge(1), and three equivalent Ge(2) atoms to form a mixture of distorted face, corner, and edge-sharing LiPr3Ge4 tetrahedra. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to one Ge(2) and eight equivalent Ge(1) atoms. In the second Pr site, Pr(2) is bonded in a 12-coordinate geometry to six equivalent Li(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 9-coordinate geometry to one Li(1), two equivalent Pr(2), four equivalent Pr(1), and two equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Li(1), one Pr(1), and two equivalent Pr(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Pr2Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.665
_cell_length_b   9.665
_cell_length_c   6.960
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   153.231
_symmetry_Int_Tables_number   1
_cell_volume   292.797
_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
  Li  Li0  1  0.810  0.190  0.438  1.0
  Li  Li1  1  0.190  0.810  0.562  1.0
  Li  Li2  1  0.810  0.190  0.062  1.0
  Li  Li3  1  0.190  0.810  0.938  1.0
  Pr  Pr4  1  0.552  0.448  0.750  1.0
  Pr  Pr5  1  0.448  0.552  0.250  1.0
  Pr  Pr6  1  0.341  0.659  0.750  1.0
  Pr  Pr7  1  0.659  0.341  0.250  1.0
  Ge  Ge8  1  0.939  0.061  0.932  1.0
  Ge  Ge9  1  0.061  0.939  0.068  1.0
  Ge  Ge10  1  0.939  0.061  0.568  1.0
  Ge  Ge11  1  0.061  0.939  0.432  1.0
  Ge  Ge12  1  0.720  0.280  0.750  1.0
  Ge  Ge13  1  0.280  0.720  0.250  1.0
[/CIF]
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The material structure described by Li2Pr2Ge3 crystallizes in the orthorhombic Cmcm space group. Li(1) is bonded to three equivalent Pr(2), one Ge(1), and three equivalent Ge(2) atoms to form a mixture of distorted face, corner, and edge-sharing LiPr3Ge4 tetrahedra. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to one Ge(2) and eight equivalent Ge(1) atoms. In the second Pr site, Pr(2) is bonded in a 12-coordinate geometry to six equivalent Li(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 9-coordinate geometry to one Li(1), two equivalent Pr(2), four equivalent Pr(1), and two equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Li(1), one Pr(1), and two equivalent Pr(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Pr2Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.665
_cell_length_b   9.665
_cell_length_c   6.960
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   153.231
_symmetry_Int_Tables_number   1
_cell_volume   292.797
_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
  Li  Li0  1  0.810  0.190  0.438  1.0
  Li  Li1  1  0.190  0.810  0.562  1.0
  Li  Li2  1  0.810  0.190  0.062  1.0
  Li  Li3  1  0.190  0.810  0.938  1.0
  Pr  Pr4  1  0.552  0.448  0.750  1.0
  Pr  Pr5  1  0.448  0.552  0.250  1.0
  Pr  Pr6  1  0.341  0.659  0.750  1.0
  Pr  Pr7  1  0.659  0.341  0.250  1.0
  Ge  Ge8  1  0.939  0.061  0.932  1.0
  Ge  Ge9  1  0.061  0.939  0.068  1.0
  Ge  Ge10  1  0.939  0.061  0.568  1.0
  Ge  Ge11  1  0.061  0.939  0.432  1.0
  Ge  Ge12  1  0.720  0.280  0.750  1.0
  Ge  Ge13  1  0.280  0.720  0.250  1.0
[/CIF]
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