The structure described by SmMnGe2 crystallizes in the orthorhombic Cmcm space group. Sm(1) is bonded in a 15-coordinate geometry to five equivalent Mn(1), four equivalent Ge(2), and six equivalent Ge(1) atoms. Mn(1) is bonded in a 5-coordinate geometry to five equivalent Sm(1), one Ge(1), and four equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted single-bond geometry to six equivalent Sm(1) and one Mn(1) atom. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and four equivalent Mn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmMnGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.365
_cell_length_b   8.365
_cell_length_c   4.472
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.422
_symmetry_Int_Tables_number   1
_cell_volume   159.211
_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
  Sm  Sm0  1  0.896  0.104  0.250  1.0
  Sm  Sm1  1  0.104  0.896  0.750  1.0
  Mn  Mn2  1  0.692  0.308  0.250  1.0
  Mn  Mn3  1  0.308  0.692  0.750  1.0
  Ge  Ge4  1  0.545  0.455  0.250  1.0
  Ge  Ge5  1  0.455  0.545  0.750  1.0
  Ge  Ge6  1  0.253  0.747  0.250  1.0
  Ge  Ge7  1  0.747  0.253  0.750  1.0
[/CIF]
.
The structure described by SmMnGe2 crystallizes in the orthorhombic Cmcm space group. Sm(1) is bonded in a 15-coordinate geometry to five equivalent Mn(1), four equivalent Ge(2), and six equivalent Ge(1) atoms. Mn(1) is bonded in a 5-coordinate geometry to five equivalent Sm(1), one Ge(1), and four equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted single-bond geometry to six equivalent Sm(1) and one Mn(1) atom. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and four equivalent Mn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmMnGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.365
_cell_length_b   8.365
_cell_length_c   4.472
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.422
_symmetry_Int_Tables_number   1
_cell_volume   159.211
_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
  Sm  Sm0  1  0.896  0.104  0.250  1.0
  Sm  Sm1  1  0.104  0.896  0.750  1.0
  Mn  Mn2  1  0.692  0.308  0.250  1.0
  Mn  Mn3  1  0.308  0.692  0.750  1.0
  Ge  Ge4  1  0.545  0.455  0.250  1.0
  Ge  Ge5  1  0.455  0.545  0.750  1.0
  Ge  Ge6  1  0.253  0.747  0.250  1.0
  Ge  Ge7  1  0.747  0.253  0.750  1.0
[/CIF]
.