The material structure described by LaMnFeGe2 crystallizes in the tetragonal I-4m2 space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Mn(1), four equivalent Fe(1), and eight equivalent Ge(1) atoms. Mn(1) is bonded to four equivalent La(1) and four equivalent Ge(1) atoms to form distorted MnLa4Ge4 tetrahedra that share corners with four equivalent Fe(1)La4Ge4 tetrahedra, corners with eight equivalent Mn(1)La4Ge4 tetrahedra, edges with two equivalent Fe(1)La4Ge4 tetrahedra, edges with four equivalent Mn(1)La4Ge4 tetrahedra, and faces with four equivalent Fe(1)La4Ge4 tetrahedra. Fe(1) is bonded to four equivalent La(1) and four equivalent Ge(1) atoms to form distorted FeLa4Ge4 tetrahedra that share corners with four equivalent Mn(1)La4Ge4 tetrahedra, corners with eight equivalent Fe(1)La4Ge4 tetrahedra, edges with two equivalent Mn(1)La4Ge4 tetrahedra, edges with four equivalent Fe(1)La4Ge4 tetrahedra, and faces with four equivalent Mn(1)La4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent La(1), two equivalent Mn(1), two equivalent Fe(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaMnFeGe2
_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   140.550
_cell_angle_beta   140.550
_cell_angle_gamma   57.020
_symmetry_Int_Tables_number   1
_cell_volume   90.418
_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
  La  La0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.250  0.750  0.500  1.0
  Fe  Fe2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.630  0.630  0.000  1.0
  Ge  Ge4  1  0.370  0.370  0.000  1.0
[/CIF]
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The material structure described by LaMnFeGe2 crystallizes in the tetragonal I-4m2 space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Mn(1), four equivalent Fe(1), and eight equivalent Ge(1) atoms. Mn(1) is bonded to four equivalent La(1) and four equivalent Ge(1) atoms to form distorted MnLa4Ge4 tetrahedra that share corners with four equivalent Fe(1)La4Ge4 tetrahedra, corners with eight equivalent Mn(1)La4Ge4 tetrahedra, edges with two equivalent Fe(1)La4Ge4 tetrahedra, edges with four equivalent Mn(1)La4Ge4 tetrahedra, and faces with four equivalent Fe(1)La4Ge4 tetrahedra. Fe(1) is bonded to four equivalent La(1) and four equivalent Ge(1) atoms to form distorted FeLa4Ge4 tetrahedra that share corners with four equivalent Mn(1)La4Ge4 tetrahedra, corners with eight equivalent Fe(1)La4Ge4 tetrahedra, edges with two equivalent Mn(1)La4Ge4 tetrahedra, edges with four equivalent Fe(1)La4Ge4 tetrahedra, and faces with four equivalent Mn(1)La4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent La(1), two equivalent Mn(1), two equivalent Fe(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaMnFeGe2
_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   140.550
_cell_angle_beta   140.550
_cell_angle_gamma   57.020
_symmetry_Int_Tables_number   1
_cell_volume   90.418
_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
  La  La0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.250  0.750  0.500  1.0
  Fe  Fe2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.630  0.630  0.000  1.0
  Ge  Ge4  1  0.370  0.370  0.000  1.0
[/CIF]
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