data_MgTaGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.58
_cell_length_b   4.58
_cell_length_c   2.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTaGe
_chemical_formula_sum   'Mg1 Ta1 Ge1'
_cell_volume   53.72
_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
  Mg  Mg1  1  0.0  0.0  0.79  1.0
  Ta  Ta2  1  0.29  0.32  0.22  1.0
  Ge  Ge0  1  1.0  0.64  0.92  1.0

data_MgTaGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.96
_cell_length_b   4.58
_cell_length_c   4.58
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTaGe
_chemical_formula_sum   'Mg1 Ta1 Ge1'
_cell_volume   53.72
_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
  Mg  Mg0  1  0.79  0.0  0.0  1.0
  Ta  Ta1  1  0.22  0.29  0.32  1.0
  Ge  Ge2  1  0.92  1.0  0.64  1.0

Mg Ta Ge
Mg Ta Ge 0 2 - - o 0 1 o o + 0 1 o o o 
MgTaGe crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to two equivalent Ta(1) and one Ge(1) atom. There is one shorter (1.90 Å) and one longer (2.18 Å) Mg(1)-Ta(1) bond length. The Mg(1)-Ge(1) bond length is 1.68 Å. Ta(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Ge(1) atoms. There is one shorter (2.58 Å) and one longer (2.97 Å) Ta(1)-Ge(1) bond length. Ge(1) is bonded in a distorted single-bond geometry to one Mg(1) and two equivalent Ta(1) atoms.