The material structure described by NaAlGe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Na(1) is bonded in a 5-coordinate geometry to five equivalent Ge(1) atoms. Al(1) is bonded to four equivalent Ge(1) atoms to form a mixture of distorted edge and corner-sharing AlGe4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to five equivalent Na(1) and four equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_NaAlGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.148
_cell_length_b   4.148
_cell_length_c   7.328
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   126.064
_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
  Na  Na0  1  0.250  0.250  0.640  1.0
  Na  Na1  1  0.750  0.750  0.360  1.0
  Al  Al2  1  0.750  0.250  0.000  1.0
  Al  Al3  1  0.250  0.750  0.000  1.0
  Ge  Ge4  1  0.250  0.250  0.214  1.0
  Ge  Ge5  1  0.750  0.750  0.786  1.0
[/CIF]
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The material structure described by NaAlGe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Na(1) is bonded in a 5-coordinate geometry to five equivalent Ge(1) atoms. Al(1) is bonded to four equivalent Ge(1) atoms to form a mixture of distorted edge and corner-sharing AlGe4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to five equivalent Na(1) and four equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_NaAlGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.148
_cell_length_b   4.148
_cell_length_c   7.328
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   126.064
_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
  Na  Na0  1  0.250  0.250  0.640  1.0
  Na  Na1  1  0.750  0.750  0.360  1.0
  Al  Al2  1  0.750  0.250  0.000  1.0
  Al  Al3  1  0.250  0.750  0.000  1.0
  Ge  Ge4  1  0.250  0.250  0.214  1.0
  Ge  Ge5  1  0.750  0.750  0.786  1.0
[/CIF]
.