The material described by (NaCrO6)2N2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure consists of four ammonia atoms inside a NaCrO6 framework. In the NaCrO6 framework, Na(1) is bonded to one O(1), one O(2), one O(3), two equivalent O(4), and two equivalent O(5) atoms to form distorted NaO7 pentagonal bipyramids that share corners with three equivalent Cr(1)O4 tetrahedra, edges with two equivalent Na(1)O7 pentagonal bipyramids, and  an edgeedge with one Cr(1)O4 tetrahedra. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share corners with three equivalent Na(1)O7 pentagonal bipyramids and  an edgeedge with one Na(1)O7 pentagonal bipyramid. There are six inequivalent O sites. In the first O site, O(6) is bonded in a water-like geometry to one O(3) and one O(5) atom. In the second O site, O(1) is bonded in a single-bond geometry to one Na(1) and one Cr(1) atom. In the third O site, O(2) is bonded in a distorted water-like geometry to one Na(1) and one Cr(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Cr(1), and one O(6) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one Cr(1) atom. In the sixth O site, O(5) is bonded in a trigonal non-coplanar geometry to two equivalent Na(1) and one O(6) atom. is represented by the CIF file [CIF]
data_NaCrNO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.954
_cell_length_b   7.429
_cell_length_c   10.271
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   606.902
_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  0.589  0.655  0.036  1.0
  Na  Na1  1  0.089  0.845  0.964  1.0
  Na  Na2  1  0.411  0.155  0.464  1.0
  Na  Na3  1  0.911  0.345  0.536  1.0
  Cr  Cr4  1  0.113  0.870  0.648  1.0
  Cr  Cr5  1  0.613  0.630  0.352  1.0
  Cr  Cr6  1  0.887  0.370  0.852  1.0
  Cr  Cr7  1  0.387  0.130  0.148  1.0
  N  N8  1  0.108  0.832  0.289  1.0
  N  N9  1  0.608  0.668  0.711  1.0
  N  N10  1  0.892  0.332  0.211  1.0
  N  N11  1  0.392  0.168  0.789  1.0
  O  O12  1  0.280  0.835  0.735  1.0
  O  O13  1  0.780  0.665  0.265  1.0
  O  O14  1  0.720  0.335  0.765  1.0
  O  O15  1  0.220  0.165  0.235  1.0
  O  O16  1  0.952  0.889  0.743  1.0
  O  O17  1  0.452  0.611  0.257  1.0
  O  O18  1  0.048  0.389  0.757  1.0
  O  O19  1  0.548  0.111  0.243  1.0
  O  O20  1  0.074  0.665  0.549  1.0
  O  O21  1  0.574  0.835  0.451  1.0
  O  O22  1  0.926  0.165  0.951  1.0
  O  O23  1  0.426  0.335  0.049  1.0
  O  O24  1  0.362  0.953  0.053  1.0
  O  O25  1  0.862  0.547  0.947  1.0
  O  O26  1  0.638  0.453  0.447  1.0
  O  O27  1  0.138  0.047  0.553  1.0
  O  O28  1  0.790  0.919  0.036  1.0
  O  O29  1  0.290  0.581  0.964  1.0
  O  O30  1  0.210  0.419  0.464  1.0
  O  O31  1  0.710  0.081  0.536  1.0
  O  O32  1  0.760  0.073  0.988  1.0
  O  O33  1  0.260  0.427  0.012  1.0
  O  O34  1  0.240  0.573  0.512  1.0
  O  O35  1  0.740  0.927  0.488  1.0
[/CIF]
.
The material described by (NaCrO6)2N2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure consists of four ammonia atoms inside a NaCrO6 framework. In the NaCrO6 framework, Na(1) is bonded to one O(1), one O(2), one O(3), two equivalent O(4), and two equivalent O(5) atoms to form distorted NaO7 pentagonal bipyramids that share corners with three equivalent Cr(1)O4 tetrahedra, edges with two equivalent Na(1)O7 pentagonal bipyramids, and  an edgeedge with one Cr(1)O4 tetrahedra. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share corners with three equivalent Na(1)O7 pentagonal bipyramids and  an edgeedge with one Na(1)O7 pentagonal bipyramid. There are six inequivalent O sites. In the first O site, O(6) is bonded in a water-like geometry to one O(3) and one O(5) atom. In the second O site, O(1) is bonded in a single-bond geometry to one Na(1) and one Cr(1) atom. In the third O site, O(2) is bonded in a distorted water-like geometry to one Na(1) and one Cr(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one Na(1), one Cr(1), and one O(6) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one Cr(1) atom. In the sixth O site, O(5) is bonded in a trigonal non-coplanar geometry to two equivalent Na(1) and one O(6) atom. is represented by the CIF file [CIF]
data_NaCrNO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.954
_cell_length_b   7.429
_cell_length_c   10.271
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   606.902
_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  0.589  0.655  0.036  1.0
  Na  Na1  1  0.089  0.845  0.964  1.0
  Na  Na2  1  0.411  0.155  0.464  1.0
  Na  Na3  1  0.911  0.345  0.536  1.0
  Cr  Cr4  1  0.113  0.870  0.648  1.0
  Cr  Cr5  1  0.613  0.630  0.352  1.0
  Cr  Cr6  1  0.887  0.370  0.852  1.0
  Cr  Cr7  1  0.387  0.130  0.148  1.0
  N  N8  1  0.108  0.832  0.289  1.0
  N  N9  1  0.608  0.668  0.711  1.0
  N  N10  1  0.892  0.332  0.211  1.0
  N  N11  1  0.392  0.168  0.789  1.0
  O  O12  1  0.280  0.835  0.735  1.0
  O  O13  1  0.780  0.665  0.265  1.0
  O  O14  1  0.720  0.335  0.765  1.0
  O  O15  1  0.220  0.165  0.235  1.0
  O  O16  1  0.952  0.889  0.743  1.0
  O  O17  1  0.452  0.611  0.257  1.0
  O  O18  1  0.048  0.389  0.757  1.0
  O  O19  1  0.548  0.111  0.243  1.0
  O  O20  1  0.074  0.665  0.549  1.0
  O  O21  1  0.574  0.835  0.451  1.0
  O  O22  1  0.926  0.165  0.951  1.0
  O  O23  1  0.426  0.335  0.049  1.0
  O  O24  1  0.362  0.953  0.053  1.0
  O  O25  1  0.862  0.547  0.947  1.0
  O  O26  1  0.638  0.453  0.447  1.0
  O  O27  1  0.138  0.047  0.553  1.0
  O  O28  1  0.790  0.919  0.036  1.0
  O  O29  1  0.290  0.581  0.964  1.0
  O  O30  1  0.210  0.419  0.464  1.0
  O  O31  1  0.710  0.081  0.536  1.0
  O  O32  1  0.760  0.073  0.988  1.0
  O  O33  1  0.260  0.427  0.012  1.0
  O  O34  1  0.240  0.573  0.512  1.0
  O  O35  1  0.740  0.927  0.488  1.0
[/CIF]
.