data_KVSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.5
_cell_length_b   4.5
_cell_length_c   6.65
_cell_angle_alpha   104.07
_cell_angle_beta   104.07
_cell_angle_gamma   47.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KVSi2
_chemical_formula_sum   'K1 V1 Si2'
_cell_volume   95.15
_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
  K  K0  1  0.0  0.0  0.0  1.0
  V  V3  1  0.25  0.0  0.21  1.0
  Si  Si1  1  0.79  0.0  0.89  1.0
  Si  Si2  1  0.71  0.0  0.53  1.0

data_KVSi2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.59
_cell_length_b   4.5
_cell_length_c   6.65
_cell_angle_alpha   104.07
_cell_angle_beta   90.0
_cell_angle_gamma   113.52
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KVSi2
_chemical_formula_sum   'K1 V1 Si2'
_cell_volume   95.15
_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
  K  K0  1  0.0  0.0  0.0  1.0
  V  V1  1  0.0  0.75  0.79  1.0
  Si  Si2  1  0.0  0.21  0.11  1.0
  Si  Si3  1  0.0  0.29  0.47  1.0

K V Si Si