The material structure described by C3As4 crystallizes in the cubic P-43m space group. C(1) is bonded to four equivalent As(1) atoms to form corner-sharing CAs4 tetrahedra. As(1) is bonded in a trigonal non-coplanar geometry to three equivalent C(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_As4C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.608
_cell_length_b   4.608
_cell_length_c   4.608
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   97.861
_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
  As  As0  1  0.728  0.272  0.272  1.0
  As  As1  1  0.272  0.272  0.728  1.0
  As  As2  1  0.272  0.728  0.272  1.0
  As  As3  1  0.728  0.728  0.728  1.0
  C  C4  1  0.000  0.000  0.500  1.0
  C  C5  1  0.500  0.000  0.000  1.0
  C  C6  1  0.000  0.500  0.000  1.0
[/CIF]
.
The material structure described by C3As4 crystallizes in the cubic P-43m space group. C(1) is bonded to four equivalent As(1) atoms to form corner-sharing CAs4 tetrahedra. As(1) is bonded in a trigonal non-coplanar geometry to three equivalent C(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_As4C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.608
_cell_length_b   4.608
_cell_length_c   4.608
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   97.861
_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
  As  As0  1  0.728  0.272  0.272  1.0
  As  As1  1  0.272  0.272  0.728  1.0
  As  As2  1  0.272  0.728  0.272  1.0
  As  As3  1  0.728  0.728  0.728  1.0
  C  C4  1  0.000  0.000  0.500  1.0
  C  C5  1  0.500  0.000  0.000  1.0
  C  C6  1  0.000  0.500  0.000  1.0
[/CIF]
.