The crystal structure described by Na3MgVH6O7 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(7) atom. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one H(3), one O(1), one O(3), one O(4), one O(5), and one O(6) atom. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one O(1), one O(6), and one O(7) atom. Mg(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form MgO4 tetrahedra that share  a cornercorner with one V(1)O4 tetrahedra and  an edgeedge with one V(1)O4 tetrahedra. V(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form VO4 tetrahedra that share  a cornercorner with one Mg(1)O4 tetrahedra and  an edgeedge with one Mg(1)O4 tetrahedra. There are six inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one Na(2) and one O(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(4) and one O(5) atom. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(2) and one O(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(3) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one Mg(1), and one V(1) atom. In the second O site, O(2) is bonded in a distorted trigonal bipyramidal geometry to one Na(1), one Mg(1), one V(1), one H(1), and one H(5) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Na(2), one V(1), and one H(6) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(2), one Mg(1), one V(1), and one H(4) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Na(1), one Na(2), one H(1), and one H(4) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Na(2), one Na(3), one H(2), and one H(5) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Na(1), one Na(3), one Mg(1), and one H(3) atom. is represented by the CIF file [CIF]
data_Na3MgVH6O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.972
_cell_length_b   5.861
_cell_length_c   5.887
_cell_angle_alpha   105.289
_cell_angle_beta   88.894
_cell_angle_gamma   103.990
_symmetry_Int_Tables_number   1
_cell_volume   192.669
_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
  Na  Na0  1  0.694  0.495  0.246  1.0
  Na  Na1  1  0.469  0.210  0.804  1.0
  Na  Na2  1  0.209  0.500  0.463  1.0
  Mg  Mg3  1  0.214  0.935  0.322  1.0
  V  V4  1  0.005  0.993  0.941  1.0
  H  H5  1  0.903  0.492  0.799  1.0
  H  H6  1  0.503  0.744  0.878  1.0
  H  H7  1  0.622  0.913  0.491  1.0
  H  H8  1  0.922  0.230  0.631  1.0
  H  H9  1  0.246  0.617  0.927  1.0
  H  H10  1  0.633  0.989  0.150  1.0
  O  O11  1  0.250  0.194  0.161  1.0
  O  O12  1  0.010  0.698  0.049  1.0
  O  O13  1  0.697  0.054  0.016  1.0
  O  O14  1  0.070  0.007  0.626  1.0
  O  O15  1  0.845  0.369  0.639  1.0
  O  O16  1  0.386  0.585  0.833  1.0
  O  O17  1  0.494  0.826  0.376  1.0
[/CIF]
.
The crystal structure described by Na3MgVH6O7 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(7) atom. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one H(3), one O(1), one O(3), one O(4), one O(5), and one O(6) atom. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one O(1), one O(6), and one O(7) atom. Mg(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form MgO4 tetrahedra that share  a cornercorner with one V(1)O4 tetrahedra and  an edgeedge with one V(1)O4 tetrahedra. V(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form VO4 tetrahedra that share  a cornercorner with one Mg(1)O4 tetrahedra and  an edgeedge with one Mg(1)O4 tetrahedra. There are six inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one Na(2) and one O(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(4) and one O(5) atom. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(2) and one O(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(3) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one Mg(1), and one V(1) atom. In the second O site, O(2) is bonded in a distorted trigonal bipyramidal geometry to one Na(1), one Mg(1), one V(1), one H(1), and one H(5) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Na(2), one V(1), and one H(6) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(2), one Mg(1), one V(1), and one H(4) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Na(1), one Na(2), one H(1), and one H(4) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Na(2), one Na(3), one H(2), and one H(5) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Na(1), one Na(3), one Mg(1), and one H(3) atom. is represented by the CIF file [CIF]
data_Na3MgVH6O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.972
_cell_length_b   5.861
_cell_length_c   5.887
_cell_angle_alpha   105.289
_cell_angle_beta   88.894
_cell_angle_gamma   103.990
_symmetry_Int_Tables_number   1
_cell_volume   192.669
_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
  Na  Na0  1  0.694  0.495  0.246  1.0
  Na  Na1  1  0.469  0.210  0.804  1.0
  Na  Na2  1  0.209  0.500  0.463  1.0
  Mg  Mg3  1  0.214  0.935  0.322  1.0
  V  V4  1  0.005  0.993  0.941  1.0
  H  H5  1  0.903  0.492  0.799  1.0
  H  H6  1  0.503  0.744  0.878  1.0
  H  H7  1  0.622  0.913  0.491  1.0
  H  H8  1  0.922  0.230  0.631  1.0
  H  H9  1  0.246  0.617  0.927  1.0
  H  H10  1  0.633  0.989  0.150  1.0
  O  O11  1  0.250  0.194  0.161  1.0
  O  O12  1  0.010  0.698  0.049  1.0
  O  O13  1  0.697  0.054  0.016  1.0
  O  O14  1  0.070  0.007  0.626  1.0
  O  O15  1  0.845  0.369  0.639  1.0
  O  O16  1  0.386  0.585  0.833  1.0
  O  O17  1  0.494  0.826  0.376  1.0
[/CIF]
.