The structure described by NaCBiAsO7 crystallizes in the monoclinic P2_1 space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(7) atom. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. Bi(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted BiO6 octahedra that share corners with four equivalent As(1)O4 tetrahedra. As(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form AsO4 tetrahedra that share corners with four equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one C(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one C(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Bi(1) and one As(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one Bi(1), and one As(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one Bi(1), and one As(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Bi(1), and one As(1) atom. is represented by the CIF file [CIF]
data_NaBiAsCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.213
_cell_length_b   5.631
_cell_length_c   9.725
_cell_angle_alpha   89.381
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   394.933
_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  0.509  0.768  0.789  1.0
  Na  Na1  1  0.009  0.232  0.211  1.0
  Bi  Bi2  1  0.235  0.211  0.645  1.0
  Bi  Bi3  1  0.735  0.789  0.355  1.0
  As  As4  1  0.742  0.281  0.580  1.0
  As  As5  1  0.242  0.719  0.420  1.0
  C  C6  1  0.265  0.278  0.928  1.0
  C  C7  1  0.765  0.722  0.072  1.0
  O  O8  1  0.741  0.694  0.944  1.0
  O  O9  1  0.265  0.065  0.874  1.0
  O  O10  1  0.287  0.460  0.845  1.0
  O  O11  1  0.926  0.195  0.681  1.0
  O  O12  1  0.555  0.156  0.663  1.0
  O  O13  1  0.263  0.821  0.588  1.0
  O  O14  1  0.715  0.584  0.567  1.0
  O  O15  1  0.215  0.416  0.433  1.0
  O  O16  1  0.763  0.179  0.412  1.0
  O  O17  1  0.055  0.844  0.337  1.0
  O  O18  1  0.426  0.805  0.319  1.0
  O  O19  1  0.787  0.540  0.155  1.0
  O  O20  1  0.765  0.935  0.126  1.0
  O  O21  1  0.241  0.306  0.056  1.0
[/CIF]
.
The structure described by NaCBiAsO7 crystallizes in the monoclinic P2_1 space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(7) atom. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. Bi(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted BiO6 octahedra that share corners with four equivalent As(1)O4 tetrahedra. As(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form AsO4 tetrahedra that share corners with four equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one C(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one C(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Bi(1) and one As(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one Bi(1), and one As(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one Bi(1), and one As(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Bi(1), and one As(1) atom. is represented by the CIF file [CIF]
data_NaBiAsCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.213
_cell_length_b   5.631
_cell_length_c   9.725
_cell_angle_alpha   89.381
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   394.933
_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  0.509  0.768  0.789  1.0
  Na  Na1  1  0.009  0.232  0.211  1.0
  Bi  Bi2  1  0.235  0.211  0.645  1.0
  Bi  Bi3  1  0.735  0.789  0.355  1.0
  As  As4  1  0.742  0.281  0.580  1.0
  As  As5  1  0.242  0.719  0.420  1.0
  C  C6  1  0.265  0.278  0.928  1.0
  C  C7  1  0.765  0.722  0.072  1.0
  O  O8  1  0.741  0.694  0.944  1.0
  O  O9  1  0.265  0.065  0.874  1.0
  O  O10  1  0.287  0.460  0.845  1.0
  O  O11  1  0.926  0.195  0.681  1.0
  O  O12  1  0.555  0.156  0.663  1.0
  O  O13  1  0.263  0.821  0.588  1.0
  O  O14  1  0.715  0.584  0.567  1.0
  O  O15  1  0.215  0.416  0.433  1.0
  O  O16  1  0.763  0.179  0.412  1.0
  O  O17  1  0.055  0.844  0.337  1.0
  O  O18  1  0.426  0.805  0.319  1.0
  O  O19  1  0.787  0.540  0.155  1.0
  O  O20  1  0.765  0.935  0.126  1.0
  O  O21  1  0.241  0.306  0.056  1.0
[/CIF]
.