The material structure described by LaCrAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent O(1) atoms. Cr(1) is bonded to four equivalent As(1) atoms to form a mixture of corner and edge-sharing CrAs4 tetrahedra. As(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Cr(1) atoms. O(1) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaCrAsO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.233
_cell_length_b   4.234
_cell_length_c   8.931
_cell_angle_alpha   90.012
_cell_angle_beta   89.971
_cell_angle_gamma   89.929
_symmetry_Int_Tables_number   1
_cell_volume   160.075
_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
  As  As0  1  0.250  0.250  0.671  1.0
  As  As1  1  0.750  0.750  0.329  1.0
  Cr  Cr2  1  0.750  0.250  0.500  1.0
  Cr  Cr3  1  0.250  0.750  0.500  1.0
  La  La4  1  0.250  0.250  0.129  1.0
  La  La5  1  0.750  0.750  0.871  1.0
  O  O6  1  0.750  0.250  1.000  1.0
  O  O7  1  0.250  0.750  1.000  1.0
[/CIF]
.
The material structure described by LaCrAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent O(1) atoms. Cr(1) is bonded to four equivalent As(1) atoms to form a mixture of corner and edge-sharing CrAs4 tetrahedra. As(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Cr(1) atoms. O(1) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaCrAsO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.233
_cell_length_b   4.234
_cell_length_c   8.931
_cell_angle_alpha   90.012
_cell_angle_beta   89.971
_cell_angle_gamma   89.929
_symmetry_Int_Tables_number   1
_cell_volume   160.075
_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
  As  As0  1  0.250  0.250  0.671  1.0
  As  As1  1  0.750  0.750  0.329  1.0
  Cr  Cr2  1  0.750  0.250  0.500  1.0
  Cr  Cr3  1  0.250  0.750  0.500  1.0
  La  La4  1  0.250  0.250  0.129  1.0
  La  La5  1  0.750  0.750  0.871  1.0
  O  O6  1  0.750  0.250  1.000  1.0
  O  O7  1  0.250  0.750  1.000  1.0
[/CIF]
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