The structure described by Na4Co(MoO4)3 crystallizes in the monoclinic C2 space group. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(5) and two equivalent O(6) atoms. In the second Na site, Na(2) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), two equivalent O(10), and two equivalent O(9) atoms. In the fourth Na site, Na(4) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(10), and two equivalent O(3) atoms. In the fifth Na site, Na(5) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms. In the sixth Na site, Na(6) is bonded to one O(11), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form NaO6 octahedra that share  a cornercorner with one Mo(1)O4 tetrahedra,  a cornercorner with one Mo(2)O4 tetrahedra, corners with two equivalent Mo(3)O4 tetrahedra, corners with two equivalent Mo(4)O4 tetrahedra, and  an edgeedge with one Co(1)O6 octahedra. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(1) and two equivalent O(11) atoms to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-58°. In the second Mo site, Mo(2) is bonded to two equivalent O(12) and two equivalent O(2) atoms to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. In the third Mo site, Mo(3) is bonded to one O(3), one O(5), one O(7), and one O(9) atom to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-63°. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(4), one O(6), and one O(8) atom to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. Co(1) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form CoO6 octahedra that share  a cornercorner with one Mo(1)O4 tetrahedra,  a cornercorner with one Mo(2)O4 tetrahedra, corners with two equivalent Mo(3)O4 tetrahedra, corners with two equivalent Mo(4)O4 tetrahedra, and  an edgeedge with one Na(6)O6 octahedra. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(4), one Mo(1), and one Co(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(5), one Na(6), and one Mo(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Na(4), one Mo(3), and one Co(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(5), one Na(6), and one Mo(4) atom. In the fifth O site, O(5) is bonded to one Na(1), one Na(2), one Na(6), and one Mo(3) atom to form distorted ONa3Mo tetrahedra that share corners with two equivalent O(5)Na3Mo tetrahedra, corners with two equivalent O(6)Na2CoMo trigonal pyramids, and  an edgeedge with one O(6)Na2CoMo trigonal pyramid. In the sixth O site, O(6) is bonded to one Na(1), one Na(2), one Mo(4), and one Co(1) atom to form distorted ONa2CoMo trigonal pyramids that share corners with two equivalent O(5)Na3Mo tetrahedra, corners with two equivalent O(6)Na2CoMo trigonal pyramids, and  an edgeedge with one O(5)Na3Mo tetrahedra. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(6), one Mo(3), and one Co(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Na(6), one Mo(4), and one Co(1) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Na(5), two equivalent Na(3), and one Mo(3) atom. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Na(4), two equivalent Na(3), and one Mo(4) atom. In the eleventh O site, O(11) is bonded in a trigonal planar geometry to one Na(3), one Na(6), and one Mo(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Na(3), one Mo(2), and one Co(1) atom. is represented by the CIF file [CIF]
data_Na4Co(MoO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.401
_cell_length_b   9.401
_cell_length_c   7.280
_cell_angle_alpha   74.928
_cell_angle_beta   74.928
_cell_angle_gamma   94.156
_symmetry_Int_Tables_number   1
_cell_volume   593.084
_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  0.510  0.490  0.000  1.0
  Na  Na1  1  0.489  0.511  0.500  1.0
  Na  Na2  1  0.001  0.998  0.250  1.0
  Na  Na3  1  0.002  0.999  0.750  1.0
  Na  Na4  1  0.234  0.766  0.000  1.0
  Na  Na5  1  0.765  0.235  0.500  1.0
  Na  Na6  1  0.870  0.556  0.626  1.0
  Na  Na7  1  0.444  0.130  0.374  1.0
  Co  Co8  1  0.120  0.448  0.875  1.0
  Co  Co9  1  0.552  0.880  0.125  1.0
  Mo  Mo10  1  0.220  0.780  0.500  1.0
  Mo  Mo11  1  0.786  0.214  0.000  1.0
  Mo  Mo12  1  0.621  0.841  0.629  1.0
  Mo  Mo13  1  0.159  0.379  0.371  1.0
  Mo  Mo14  1  0.374  0.159  0.875  1.0
  Mo  Mo15  1  0.841  0.626  0.125  1.0
  O  O16  1  0.242  0.654  0.727  1.0
  O  O17  1  0.346  0.758  0.273  1.0
  O  O18  1  0.741  0.320  0.787  1.0
  O  O19  1  0.680  0.259  0.213  1.0
  O  O20  1  0.503  0.851  0.865  1.0
  O  O21  1  0.149  0.497  0.135  1.0
  O  O22  1  0.502  0.168  0.643  1.0
  O  O23  1  0.832  0.498  0.357  1.0
  O  O24  1  0.643  0.648  0.665  1.0
  O  O25  1  0.352  0.357  0.335  1.0
  O  O26  1  0.332  0.349  0.858  1.0
  O  O27  1  0.651  0.668  0.142  1.0
  O  O28  1  0.541  0.891  0.425  1.0
  O  O29  1  0.109  0.459  0.575  1.0
  O  O30  1  0.458  0.089  0.072  1.0
  O  O31  1  0.911  0.542  0.928  1.0
  O  O32  1  0.796  0.958  0.561  1.0
  O  O33  1  0.042  0.204  0.439  1.0
  O  O34  1  0.207  0.035  0.926  1.0
  O  O35  1  0.965  0.793  0.074  1.0
  O  O36  1  0.039  0.765  0.470  1.0
  O  O37  1  0.235  0.961  0.530  1.0
  O  O38  1  0.983  0.247  0.983  1.0
  O  O39  1  0.753  0.017  0.017  1.0
[/CIF]
.
The structure described by Na4Co(MoO4)3 crystallizes in the monoclinic C2 space group. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(5) and two equivalent O(6) atoms. In the second Na site, Na(2) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), two equivalent O(10), and two equivalent O(9) atoms. In the fourth Na site, Na(4) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(10), and two equivalent O(3) atoms. In the fifth Na site, Na(5) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms. In the sixth Na site, Na(6) is bonded to one O(11), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form NaO6 octahedra that share  a cornercorner with one Mo(1)O4 tetrahedra,  a cornercorner with one Mo(2)O4 tetrahedra, corners with two equivalent Mo(3)O4 tetrahedra, corners with two equivalent Mo(4)O4 tetrahedra, and  an edgeedge with one Co(1)O6 octahedra. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(1) and two equivalent O(11) atoms to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-58°. In the second Mo site, Mo(2) is bonded to two equivalent O(12) and two equivalent O(2) atoms to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. In the third Mo site, Mo(3) is bonded to one O(3), one O(5), one O(7), and one O(9) atom to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-63°. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(4), one O(6), and one O(8) atom to form MoO4 tetrahedra that share corners with two equivalent Na(6)O6 octahedra and corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. Co(1) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form CoO6 octahedra that share  a cornercorner with one Mo(1)O4 tetrahedra,  a cornercorner with one Mo(2)O4 tetrahedra, corners with two equivalent Mo(3)O4 tetrahedra, corners with two equivalent Mo(4)O4 tetrahedra, and  an edgeedge with one Na(6)O6 octahedra. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(4), one Mo(1), and one Co(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(5), one Na(6), and one Mo(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Na(4), one Mo(3), and one Co(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(5), one Na(6), and one Mo(4) atom. In the fifth O site, O(5) is bonded to one Na(1), one Na(2), one Na(6), and one Mo(3) atom to form distorted ONa3Mo tetrahedra that share corners with two equivalent O(5)Na3Mo tetrahedra, corners with two equivalent O(6)Na2CoMo trigonal pyramids, and  an edgeedge with one O(6)Na2CoMo trigonal pyramid. In the sixth O site, O(6) is bonded to one Na(1), one Na(2), one Mo(4), and one Co(1) atom to form distorted ONa2CoMo trigonal pyramids that share corners with two equivalent O(5)Na3Mo tetrahedra, corners with two equivalent O(6)Na2CoMo trigonal pyramids, and  an edgeedge with one O(5)Na3Mo tetrahedra. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(6), one Mo(3), and one Co(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Na(6), one Mo(4), and one Co(1) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Na(5), two equivalent Na(3), and one Mo(3) atom. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Na(4), two equivalent Na(3), and one Mo(4) atom. In the eleventh O site, O(11) is bonded in a trigonal planar geometry to one Na(3), one Na(6), and one Mo(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Na(3), one Mo(2), and one Co(1) atom. is represented by the CIF file [CIF]
data_Na4Co(MoO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.401
_cell_length_b   9.401
_cell_length_c   7.280
_cell_angle_alpha   74.928
_cell_angle_beta   74.928
_cell_angle_gamma   94.156
_symmetry_Int_Tables_number   1
_cell_volume   593.084
_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  0.510  0.490  0.000  1.0
  Na  Na1  1  0.489  0.511  0.500  1.0
  Na  Na2  1  0.001  0.998  0.250  1.0
  Na  Na3  1  0.002  0.999  0.750  1.0
  Na  Na4  1  0.234  0.766  0.000  1.0
  Na  Na5  1  0.765  0.235  0.500  1.0
  Na  Na6  1  0.870  0.556  0.626  1.0
  Na  Na7  1  0.444  0.130  0.374  1.0
  Co  Co8  1  0.120  0.448  0.875  1.0
  Co  Co9  1  0.552  0.880  0.125  1.0
  Mo  Mo10  1  0.220  0.780  0.500  1.0
  Mo  Mo11  1  0.786  0.214  0.000  1.0
  Mo  Mo12  1  0.621  0.841  0.629  1.0
  Mo  Mo13  1  0.159  0.379  0.371  1.0
  Mo  Mo14  1  0.374  0.159  0.875  1.0
  Mo  Mo15  1  0.841  0.626  0.125  1.0
  O  O16  1  0.242  0.654  0.727  1.0
  O  O17  1  0.346  0.758  0.273  1.0
  O  O18  1  0.741  0.320  0.787  1.0
  O  O19  1  0.680  0.259  0.213  1.0
  O  O20  1  0.503  0.851  0.865  1.0
  O  O21  1  0.149  0.497  0.135  1.0
  O  O22  1  0.502  0.168  0.643  1.0
  O  O23  1  0.832  0.498  0.357  1.0
  O  O24  1  0.643  0.648  0.665  1.0
  O  O25  1  0.352  0.357  0.335  1.0
  O  O26  1  0.332  0.349  0.858  1.0
  O  O27  1  0.651  0.668  0.142  1.0
  O  O28  1  0.541  0.891  0.425  1.0
  O  O29  1  0.109  0.459  0.575  1.0
  O  O30  1  0.458  0.089  0.072  1.0
  O  O31  1  0.911  0.542  0.928  1.0
  O  O32  1  0.796  0.958  0.561  1.0
  O  O33  1  0.042  0.204  0.439  1.0
  O  O34  1  0.207  0.035  0.926  1.0
  O  O35  1  0.965  0.793  0.074  1.0
  O  O36  1  0.039  0.765  0.470  1.0
  O  O37  1  0.235  0.961  0.530  1.0
  O  O38  1  0.983  0.247  0.983  1.0
  O  O39  1  0.753  0.017  0.017  1.0
[/CIF]
.