data_ZnSiAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.82
_cell_length_b   6.82
_cell_length_c   6.82
_cell_angle_alpha   130.74
_cell_angle_beta   130.74
_cell_angle_gamma   72.23
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnSiAs2
_chemical_formula_sum   'Zn2 Si2 As4'
_cell_volume   178.29
_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
  Zn  Zn6  1  0.0  0.0  0.51  1.0
  Zn  Zn7  1  0.84  0.0  0.76  1.0
  Si  Si4  1  0.0  0.0  0.0  1.0
  Si  Si5  1  0.0  0.84  0.76  1.0
  As  As0  1  0.42  0.35  0.62  1.0
  As  As1  1  0.42  0.5  0.13  1.0
  As  As2  1  0.5  0.58  0.89  1.0
  As  As3  1  0.35  0.27  0.38  1.0

data_ZnSiAs2
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.69
_cell_length_b   5.69
_cell_length_c   6.82
_cell_angle_alpha   114.63
_cell_angle_beta   114.63
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnSiAs2
_chemical_formula_sum   'Zn2 Si2 As4'
_cell_volume   178.29
_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
  Zn  Zn0  1  0.24  0.0  0.09  1.0
  Zn  Zn1  1  0.49  0.0  0.49  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Si  Si3  1  0.09  0.84  0.09  1.0
  As  As4  1  0.36  0.5  0.79  1.0
  As  As5  1  0.69  0.58  0.19  1.0
  As  As6  1  0.72  0.35  0.15  1.0
  As  As7  1  0.89  0.27  0.23  1.0

Zn Zn Si Si As As As As