The material described by Na2TbWPO8 is Esseneite-derived structured and crystallizes in the orthorhombic Ibca space group. Na(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms. Tb(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. W(1) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one W(1) atom. In the second O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Tb(1), and one P(1) atom. In the third O site, O(2) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Tb(1), and one P(1) atom. In the fourth O site, O(3) is bonded in a 2-coordinate geometry to one Na(1), one Tb(1), and one W(1) atom. is represented by the CIF card [CIF]
data_Na2TbPWO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.554
_cell_length_b   11.554
_cell_length_c   11.554
_cell_angle_alpha   144.781
_cell_angle_beta   115.580
_cell_angle_gamma   75.598
_symmetry_Int_Tables_number   1
_cell_volume   786.134
_cell_formula_units_Z   4
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  0.289  0.335  0.931  1.0
  Na  Na1  1  0.904  0.358  0.569  1.0
  Na  Na2  1  0.596  0.165  0.454  1.0
  Na  Na3  1  0.211  0.142  0.046  1.0
  Na  Na4  1  0.711  0.665  0.069  1.0
  Na  Na5  1  0.096  0.642  0.431  1.0
  Na  Na6  1  0.404  0.835  0.546  1.0
  Na  Na7  1  0.789  0.858  0.954  1.0
  Tb  Tb8  1  0.323  0.750  0.073  1.0
  Tb  Tb9  1  0.177  0.250  0.427  1.0
  Tb  Tb10  1  0.677  0.250  0.927  1.0
  Tb  Tb11  1  0.823  0.750  0.573  1.0
  P  P12  1  0.930  0.250  0.180  1.0
  P  P13  1  0.570  0.750  0.320  1.0
  P  P14  1  0.070  0.750  0.820  1.0
  P  P15  1  0.430  0.250  0.680  1.0
  W  W16  1  0.929  0.179  0.750  1.0
  W  W17  1  0.571  0.321  0.250  1.0
  W  W18  1  0.071  0.821  0.250  1.0
  W  W19  1  0.429  0.679  0.750  1.0
  O  O20  1  0.938  0.198  0.272  1.0
  O  O21  1  0.427  0.666  0.228  1.0
  O  O22  1  0.073  0.302  0.239  1.0
  O  O23  1  0.562  0.834  0.261  1.0
  O  O24  1  0.062  0.802  0.728  1.0
  O  O25  1  0.573  0.334  0.772  1.0
  O  O26  1  0.927  0.698  0.761  1.0
  O  O27  1  0.438  0.166  0.739  1.0
  O  O28  1  0.843  0.068  0.928  1.0
  O  O29  1  0.640  0.915  0.572  1.0
  O  O30  1  0.860  0.432  0.275  1.0
  O  O31  1  0.657  0.585  0.225  1.0
  O  O32  1  0.157  0.932  0.072  1.0
  O  O33  1  0.360  0.085  0.428  1.0
  O  O34  1  0.140  0.568  0.725  1.0
  O  O35  1  0.343  0.415  0.775  1.0
  O  O36  1  0.845  0.330  0.933  1.0
  O  O37  1  0.897  0.912  0.567  1.0
  O  O38  1  0.603  0.170  0.015  1.0
  O  O39  1  0.655  0.588  0.485  1.0
  O  O40  1  0.155  0.670  0.067  1.0
  O  O41  1  0.103  0.088  0.433  1.0
  O  O42  1  0.397  0.830  0.985  1.0
  O  O43  1  0.345  0.412  0.515  1.0
  O  O44  1  0.864  0.188  0.585  1.0
  O  O45  1  0.103  0.279  0.915  1.0
  O  O46  1  0.397  0.312  0.176  1.0
  O  O47  1  0.636  0.221  0.324  1.0
  O  O48  1  0.136  0.812  0.415  1.0
  O  O49  1  0.897  0.721  0.085  1.0
  O  O50  1  0.603  0.688  0.824  1.0
  O  O51  1  0.364  0.779  0.676  1.0
[/CIF]
.
The material described by Na2TbWPO8 is Esseneite-derived structured and crystallizes in the orthorhombic Ibca space group. Na(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms. Tb(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. W(1) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one W(1) atom. In the second O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Tb(1), and one P(1) atom. In the third O site, O(2) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Tb(1), and one P(1) atom. In the fourth O site, O(3) is bonded in a 2-coordinate geometry to one Na(1), one Tb(1), and one W(1) atom. is represented by the CIF card [CIF]
data_Na2TbPWO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.554
_cell_length_b   11.554
_cell_length_c   11.554
_cell_angle_alpha   144.781
_cell_angle_beta   115.580
_cell_angle_gamma   75.598
_symmetry_Int_Tables_number   1
_cell_volume   786.134
_cell_formula_units_Z   4
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  0.289  0.335  0.931  1.0
  Na  Na1  1  0.904  0.358  0.569  1.0
  Na  Na2  1  0.596  0.165  0.454  1.0
  Na  Na3  1  0.211  0.142  0.046  1.0
  Na  Na4  1  0.711  0.665  0.069  1.0
  Na  Na5  1  0.096  0.642  0.431  1.0
  Na  Na6  1  0.404  0.835  0.546  1.0
  Na  Na7  1  0.789  0.858  0.954  1.0
  Tb  Tb8  1  0.323  0.750  0.073  1.0
  Tb  Tb9  1  0.177  0.250  0.427  1.0
  Tb  Tb10  1  0.677  0.250  0.927  1.0
  Tb  Tb11  1  0.823  0.750  0.573  1.0
  P  P12  1  0.930  0.250  0.180  1.0
  P  P13  1  0.570  0.750  0.320  1.0
  P  P14  1  0.070  0.750  0.820  1.0
  P  P15  1  0.430  0.250  0.680  1.0
  W  W16  1  0.929  0.179  0.750  1.0
  W  W17  1  0.571  0.321  0.250  1.0
  W  W18  1  0.071  0.821  0.250  1.0
  W  W19  1  0.429  0.679  0.750  1.0
  O  O20  1  0.938  0.198  0.272  1.0
  O  O21  1  0.427  0.666  0.228  1.0
  O  O22  1  0.073  0.302  0.239  1.0
  O  O23  1  0.562  0.834  0.261  1.0
  O  O24  1  0.062  0.802  0.728  1.0
  O  O25  1  0.573  0.334  0.772  1.0
  O  O26  1  0.927  0.698  0.761  1.0
  O  O27  1  0.438  0.166  0.739  1.0
  O  O28  1  0.843  0.068  0.928  1.0
  O  O29  1  0.640  0.915  0.572  1.0
  O  O30  1  0.860  0.432  0.275  1.0
  O  O31  1  0.657  0.585  0.225  1.0
  O  O32  1  0.157  0.932  0.072  1.0
  O  O33  1  0.360  0.085  0.428  1.0
  O  O34  1  0.140  0.568  0.725  1.0
  O  O35  1  0.343  0.415  0.775  1.0
  O  O36  1  0.845  0.330  0.933  1.0
  O  O37  1  0.897  0.912  0.567  1.0
  O  O38  1  0.603  0.170  0.015  1.0
  O  O39  1  0.655  0.588  0.485  1.0
  O  O40  1  0.155  0.670  0.067  1.0
  O  O41  1  0.103  0.088  0.433  1.0
  O  O42  1  0.397  0.830  0.985  1.0
  O  O43  1  0.345  0.412  0.515  1.0
  O  O44  1  0.864  0.188  0.585  1.0
  O  O45  1  0.103  0.279  0.915  1.0
  O  O46  1  0.397  0.312  0.176  1.0
  O  O47  1  0.636  0.221  0.324  1.0
  O  O48  1  0.136  0.812  0.415  1.0
  O  O49  1  0.897  0.721  0.085  1.0
  O  O50  1  0.603  0.688  0.824  1.0
  O  O51  1  0.364  0.779  0.676  1.0
[/CIF]
.