The material structure described by Na3(CoO2)5 crystallizes in the monoclinic Cm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), two equivalent O(4), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(4), one O(5), two equivalent O(3), and two equivalent O(6) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), two equivalent O(4), and two equivalent O(5) atoms to form edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form edge-sharing CoO6 octahedra. In the third Co site, Co(3) is bonded to one O(4), one O(5), two equivalent O(3), and two equivalent O(6) atoms to form edge-sharing CoO6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Co(1), and two equivalent Co(2) atoms to form distorted ONaCo3 trigonal pyramids that share corners with two equivalent O(3)Na2Co3 square pyramids, corners with two equivalent O(4)Na2Co3 square pyramids, corners with two equivalent O(5)Na2Co3 trigonal bipyramids, corners with two equivalent O(6)Na2Co3 trigonal bipyramids, corners with two equivalent O(2)NaCo3 trigonal pyramids, edges with two equivalent O(4)Na2Co3 square pyramids, edges with two equivalent O(5)Na2Co3 trigonal bipyramids, and  an edgeedge with one O(2)NaCo3 trigonal pyramid. In the second O site, O(2) is bonded to one Na(1), one Co(1), and two equivalent Co(2) atoms to form distorted ONaCo3 trigonal pyramids that share corners with two equivalent O(3)Na2Co3 square pyramids, corners with two equivalent O(4)Na2Co3 square pyramids, corners with two equivalent O(5)Na2Co3 trigonal bipyramids, corners with two equivalent O(6)Na2Co3 trigonal bipyramids, corners with two equivalent O(1)NaCo3 trigonal pyramids, edges with two equivalent O(4)Na2Co3 square pyramids, edges with two equivalent O(5)Na2Co3 trigonal bipyramids, and  an edgeedge with one O(1)NaCo3 trigonal pyramid. In the third O site, O(3) is bonded to two equivalent Na(2), one Co(2), and two equivalent Co(3) atoms to form ONa2Co3 square pyramids that share  a cornercorner with one O(4)Na2Co3 square pyramid, corners with three equivalent O(5)Na2Co3 trigonal bipyramids, corners with three equivalent O(6)Na2Co3 trigonal bipyramids,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid, edges with two equivalent O(3)Na2Co3 square pyramids, edges with two equivalent O(4)Na2Co3 square pyramids,  an edgeedge with one O(5)Na2Co3 trigonal bipyramid, and edges with three equivalent O(6)Na2Co3 trigonal bipyramids. In the fourth O site, O(4) is bonded to one Na(1), one Na(2), one Co(1), one Co(2), and one Co(3) atom to form ONa2Co3 square pyramids that share  a cornercorner with one O(3)Na2Co3 square pyramid, corners with three equivalent O(5)Na2Co3 trigonal bipyramids, corners with three equivalent O(6)Na2Co3 trigonal bipyramids,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid,  an edgeedge with one O(4)Na2Co3 square pyramid, edges with two equivalent O(3)Na2Co3 square pyramids,  an edgeedge with one O(6)Na2Co3 trigonal bipyramid, edges with two equivalent O(5)Na2Co3 trigonal bipyramids,  an edgeedge with one O(1)NaCo3 trigonal pyramid, and  an edgeedge with one O(2)NaCo3 trigonal pyramid. In the fifth O site, O(5) is bonded to one Na(1), one Na(2), one Co(1), one Co(2), and one Co(3) atom to form distorted ONa2Co3 trigonal bipyramids that share corners with three equivalent O(3)Na2Co3 square pyramids, corners with three equivalent O(4)Na2Co3 square pyramids,  a cornercorner with one O(6)Na2Co3 trigonal bipyramid,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid,  an edgeedge with one O(3)Na2Co3 square pyramid, edges with two equivalent O(4)Na2Co3 square pyramids,  an edgeedge with one O(5)Na2Co3 trigonal bipyramid, edges with two equivalent O(6)Na2Co3 trigonal bipyramids,  an edgeedge with one O(1)NaCo3 trigonal pyramid, and  an edgeedge with one O(2)NaCo3 trigonal pyramid. In the sixth O site, O(6) is bonded to two equivalent Na(2), one Co(2), and two equivalent Co(3) atoms to form distorted ONa2Co3 trigonal bipyramids that share corners with three equivalent O(3)Na2Co3 square pyramids, corners with three equivalent O(4)Na2Co3 square pyramids,  a cornercorner with one O(5)Na2Co3 trigonal bipyramid,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid,  an edgeedge with one O(4)Na2Co3 square pyramid, edges with three equivalent O(3)Na2Co3 square pyramids, edges with two equivalent O(5)Na2Co3 trigonal bipyramids, and edges with two equivalent O(6)Na2Co3 trigonal bipyramids. is represented by the CIF card [CIF]
data_Na3(CoO2)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.858
_cell_length_b   5.649
_cell_length_c   7.449
_cell_angle_alpha   84.555
_cell_angle_beta   70.968
_cell_angle_gamma   73.084
_symmetry_Int_Tables_number   1
_cell_volume   184.895
_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
  Co  Co0  1  0.597  0.009  0.800  1.0
  Co  Co1  1  0.002  0.996  1.000  1.0
  Co  Co2  1  0.202  0.996  0.600  1.0
  Co  Co3  1  0.398  0.006  0.199  1.0
  Co  Co4  1  0.797  0.006  0.401  1.0
  Na  Na5  1  0.764  0.495  0.800  1.0
  Na  Na6  1  0.569  0.496  0.198  1.0
  Na  Na7  1  0.967  0.496  0.402  1.0
  O  O8  1  0.202  0.175  0.800  1.0
  O  O9  1  0.988  0.825  0.800  1.0
  O  O10  1  0.003  0.184  0.199  1.0
  O  O11  1  0.402  0.184  0.401  1.0
  O  O12  1  0.610  0.183  0.001  1.0
  O  O13  1  0.810  0.183  0.599  1.0
  O  O14  1  0.399  0.823  0.999  1.0
  O  O15  1  0.598  0.823  0.601  1.0
  O  O16  1  0.193  0.822  0.397  1.0
  O  O17  1  0.790  0.822  0.203  1.0
[/CIF]
.
The material structure described by Na3(CoO2)5 crystallizes in the monoclinic Cm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), two equivalent O(4), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(4), one O(5), two equivalent O(3), and two equivalent O(6) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), two equivalent O(4), and two equivalent O(5) atoms to form edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form edge-sharing CoO6 octahedra. In the third Co site, Co(3) is bonded to one O(4), one O(5), two equivalent O(3), and two equivalent O(6) atoms to form edge-sharing CoO6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Co(1), and two equivalent Co(2) atoms to form distorted ONaCo3 trigonal pyramids that share corners with two equivalent O(3)Na2Co3 square pyramids, corners with two equivalent O(4)Na2Co3 square pyramids, corners with two equivalent O(5)Na2Co3 trigonal bipyramids, corners with two equivalent O(6)Na2Co3 trigonal bipyramids, corners with two equivalent O(2)NaCo3 trigonal pyramids, edges with two equivalent O(4)Na2Co3 square pyramids, edges with two equivalent O(5)Na2Co3 trigonal bipyramids, and  an edgeedge with one O(2)NaCo3 trigonal pyramid. In the second O site, O(2) is bonded to one Na(1), one Co(1), and two equivalent Co(2) atoms to form distorted ONaCo3 trigonal pyramids that share corners with two equivalent O(3)Na2Co3 square pyramids, corners with two equivalent O(4)Na2Co3 square pyramids, corners with two equivalent O(5)Na2Co3 trigonal bipyramids, corners with two equivalent O(6)Na2Co3 trigonal bipyramids, corners with two equivalent O(1)NaCo3 trigonal pyramids, edges with two equivalent O(4)Na2Co3 square pyramids, edges with two equivalent O(5)Na2Co3 trigonal bipyramids, and  an edgeedge with one O(1)NaCo3 trigonal pyramid. In the third O site, O(3) is bonded to two equivalent Na(2), one Co(2), and two equivalent Co(3) atoms to form ONa2Co3 square pyramids that share  a cornercorner with one O(4)Na2Co3 square pyramid, corners with three equivalent O(5)Na2Co3 trigonal bipyramids, corners with three equivalent O(6)Na2Co3 trigonal bipyramids,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid, edges with two equivalent O(3)Na2Co3 square pyramids, edges with two equivalent O(4)Na2Co3 square pyramids,  an edgeedge with one O(5)Na2Co3 trigonal bipyramid, and edges with three equivalent O(6)Na2Co3 trigonal bipyramids. In the fourth O site, O(4) is bonded to one Na(1), one Na(2), one Co(1), one Co(2), and one Co(3) atom to form ONa2Co3 square pyramids that share  a cornercorner with one O(3)Na2Co3 square pyramid, corners with three equivalent O(5)Na2Co3 trigonal bipyramids, corners with three equivalent O(6)Na2Co3 trigonal bipyramids,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid,  an edgeedge with one O(4)Na2Co3 square pyramid, edges with two equivalent O(3)Na2Co3 square pyramids,  an edgeedge with one O(6)Na2Co3 trigonal bipyramid, edges with two equivalent O(5)Na2Co3 trigonal bipyramids,  an edgeedge with one O(1)NaCo3 trigonal pyramid, and  an edgeedge with one O(2)NaCo3 trigonal pyramid. In the fifth O site, O(5) is bonded to one Na(1), one Na(2), one Co(1), one Co(2), and one Co(3) atom to form distorted ONa2Co3 trigonal bipyramids that share corners with three equivalent O(3)Na2Co3 square pyramids, corners with three equivalent O(4)Na2Co3 square pyramids,  a cornercorner with one O(6)Na2Co3 trigonal bipyramid,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid,  an edgeedge with one O(3)Na2Co3 square pyramid, edges with two equivalent O(4)Na2Co3 square pyramids,  an edgeedge with one O(5)Na2Co3 trigonal bipyramid, edges with two equivalent O(6)Na2Co3 trigonal bipyramids,  an edgeedge with one O(1)NaCo3 trigonal pyramid, and  an edgeedge with one O(2)NaCo3 trigonal pyramid. In the sixth O site, O(6) is bonded to two equivalent Na(2), one Co(2), and two equivalent Co(3) atoms to form distorted ONa2Co3 trigonal bipyramids that share corners with three equivalent O(3)Na2Co3 square pyramids, corners with three equivalent O(4)Na2Co3 square pyramids,  a cornercorner with one O(5)Na2Co3 trigonal bipyramid,  a cornercorner with one O(1)NaCo3 trigonal pyramid,  a cornercorner with one O(2)NaCo3 trigonal pyramid,  an edgeedge with one O(4)Na2Co3 square pyramid, edges with three equivalent O(3)Na2Co3 square pyramids, edges with two equivalent O(5)Na2Co3 trigonal bipyramids, and edges with two equivalent O(6)Na2Co3 trigonal bipyramids. is represented by the CIF card [CIF]
data_Na3(CoO2)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.858
_cell_length_b   5.649
_cell_length_c   7.449
_cell_angle_alpha   84.555
_cell_angle_beta   70.968
_cell_angle_gamma   73.084
_symmetry_Int_Tables_number   1
_cell_volume   184.895
_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
  Co  Co0  1  0.597  0.009  0.800  1.0
  Co  Co1  1  0.002  0.996  1.000  1.0
  Co  Co2  1  0.202  0.996  0.600  1.0
  Co  Co3  1  0.398  0.006  0.199  1.0
  Co  Co4  1  0.797  0.006  0.401  1.0
  Na  Na5  1  0.764  0.495  0.800  1.0
  Na  Na6  1  0.569  0.496  0.198  1.0
  Na  Na7  1  0.967  0.496  0.402  1.0
  O  O8  1  0.202  0.175  0.800  1.0
  O  O9  1  0.988  0.825  0.800  1.0
  O  O10  1  0.003  0.184  0.199  1.0
  O  O11  1  0.402  0.184  0.401  1.0
  O  O12  1  0.610  0.183  0.001  1.0
  O  O13  1  0.810  0.183  0.599  1.0
  O  O14  1  0.399  0.823  0.999  1.0
  O  O15  1  0.598  0.823  0.601  1.0
  O  O16  1  0.193  0.822  0.397  1.0
  O  O17  1  0.790  0.822  0.203  1.0
[/CIF]
.