The crystal structure described by Rb2CaH8(N3O)4 crystallizes in the orthorhombic Ccce space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent N(3), four equivalent N(1), and two equivalent O(1) atoms. Ca(1) is bonded in a 8-coordinate geometry to four equivalent N(3) and four equivalent O(1) atoms. There are four inequivalent N sites. In the first N site, N(4) is bonded in a linear geometry to two equivalent N(3) atoms. In the second N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1), one N(2), and one H(2) atom. In the third N site, N(2) is bonded in a linear geometry to two equivalent N(1) atoms. In the fourth N site, N(3) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one Ca(1), and one N(4) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) and one O(1) atom. O(1) is bonded in a distorted water-like geometry to one Rb(1), one Ca(1), one H(1), and one H(2) atom. is represented by the CIF file [CIF]
data_Rb2CaH8(N3O)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.302
_cell_length_b   11.302
_cell_length_c   6.327
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.415
_symmetry_Int_Tables_number   1
_cell_volume   696.942
_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
  Rb  Rb0  1  0.331  0.669  0.000  1.0
  Rb  Rb1  1  0.169  0.831  0.500  1.0
  Rb  Rb2  1  0.831  0.169  0.500  1.0
  Rb  Rb3  1  0.669  0.331  0.000  1.0
  Ca  Ca4  1  0.000  0.000  0.000  1.0
  Ca  Ca5  1  0.500  0.500  0.500  1.0
  H  H6  1  0.282  0.124  0.148  1.0
  H  H7  1  0.624  0.782  0.648  1.0
  H  H8  1  0.376  0.218  0.648  1.0
  H  H9  1  0.718  0.876  0.148  1.0
  H  H10  1  0.218  0.376  0.352  1.0
  H  H11  1  0.876  0.718  0.852  1.0
  H  H12  1  0.124  0.282  0.852  1.0
  H  H13  1  0.782  0.624  0.352  1.0
  H  H14  1  0.273  0.002  0.016  1.0
  H  H15  1  0.502  0.773  0.516  1.0
  H  H16  1  0.498  0.227  0.516  1.0
  H  H17  1  0.727  0.998  0.016  1.0
  H  H18  1  0.227  0.498  0.484  1.0
  H  H19  1  0.998  0.727  0.984  1.0
  H  H20  1  0.002  0.273  0.984  1.0
  H  H21  1  0.773  0.502  0.484  1.0
  N  N22  1  0.380  0.956  0.850  1.0
  N  N23  1  0.456  0.880  0.350  1.0
  N  N24  1  0.544  0.120  0.350  1.0
  N  N25  1  0.620  0.044  0.850  1.0
  N  N26  1  0.120  0.544  0.650  1.0
  N  N27  1  0.044  0.620  0.150  1.0
  N  N28  1  0.956  0.380  0.150  1.0
  N  N29  1  0.880  0.456  0.650  1.0
  N  N30  1  0.500  0.000  0.852  1.0
  N  N31  1  0.500  0.000  0.352  1.0
  N  N32  1  0.000  0.500  0.648  1.0
  N  N33  1  0.000  0.500  0.148  1.0
  N  N34  1  0.332  0.403  0.848  1.0
  N  N35  1  0.903  0.832  0.348  1.0
  N  N36  1  0.097  0.168  0.348  1.0
  N  N37  1  0.668  0.597  0.848  1.0
  N  N38  1  0.168  0.097  0.652  1.0
  N  N39  1  0.597  0.668  0.152  1.0
  N  N40  1  0.403  0.332  0.152  1.0
  N  N41  1  0.832  0.903  0.652  1.0
  N  N42  1  0.868  0.868  0.500  1.0
  N  N43  1  0.368  0.368  0.000  1.0
  N  N44  1  0.632  0.632  0.000  1.0
  N  N45  1  0.132  0.132  0.500  1.0
  O  O46  1  0.218  0.027  0.109  1.0
  O  O47  1  0.527  0.718  0.609  1.0
  O  O48  1  0.473  0.282  0.609  1.0
  O  O49  1  0.782  0.973  0.109  1.0
  O  O50  1  0.282  0.473  0.391  1.0
  O  O51  1  0.973  0.782  0.891  1.0
  O  O52  1  0.027  0.218  0.891  1.0
  O  O53  1  0.718  0.527  0.391  1.0
[/CIF]
.
The crystal structure described by Rb2CaH8(N3O)4 crystallizes in the orthorhombic Ccce space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent N(3), four equivalent N(1), and two equivalent O(1) atoms. Ca(1) is bonded in a 8-coordinate geometry to four equivalent N(3) and four equivalent O(1) atoms. There are four inequivalent N sites. In the first N site, N(4) is bonded in a linear geometry to two equivalent N(3) atoms. In the second N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1), one N(2), and one H(2) atom. In the third N site, N(2) is bonded in a linear geometry to two equivalent N(1) atoms. In the fourth N site, N(3) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one Ca(1), and one N(4) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) and one O(1) atom. O(1) is bonded in a distorted water-like geometry to one Rb(1), one Ca(1), one H(1), and one H(2) atom. is represented by the CIF file [CIF]
data_Rb2CaH8(N3O)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.302
_cell_length_b   11.302
_cell_length_c   6.327
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.415
_symmetry_Int_Tables_number   1
_cell_volume   696.942
_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
  Rb  Rb0  1  0.331  0.669  0.000  1.0
  Rb  Rb1  1  0.169  0.831  0.500  1.0
  Rb  Rb2  1  0.831  0.169  0.500  1.0
  Rb  Rb3  1  0.669  0.331  0.000  1.0
  Ca  Ca4  1  0.000  0.000  0.000  1.0
  Ca  Ca5  1  0.500  0.500  0.500  1.0
  H  H6  1  0.282  0.124  0.148  1.0
  H  H7  1  0.624  0.782  0.648  1.0
  H  H8  1  0.376  0.218  0.648  1.0
  H  H9  1  0.718  0.876  0.148  1.0
  H  H10  1  0.218  0.376  0.352  1.0
  H  H11  1  0.876  0.718  0.852  1.0
  H  H12  1  0.124  0.282  0.852  1.0
  H  H13  1  0.782  0.624  0.352  1.0
  H  H14  1  0.273  0.002  0.016  1.0
  H  H15  1  0.502  0.773  0.516  1.0
  H  H16  1  0.498  0.227  0.516  1.0
  H  H17  1  0.727  0.998  0.016  1.0
  H  H18  1  0.227  0.498  0.484  1.0
  H  H19  1  0.998  0.727  0.984  1.0
  H  H20  1  0.002  0.273  0.984  1.0
  H  H21  1  0.773  0.502  0.484  1.0
  N  N22  1  0.380  0.956  0.850  1.0
  N  N23  1  0.456  0.880  0.350  1.0
  N  N24  1  0.544  0.120  0.350  1.0
  N  N25  1  0.620  0.044  0.850  1.0
  N  N26  1  0.120  0.544  0.650  1.0
  N  N27  1  0.044  0.620  0.150  1.0
  N  N28  1  0.956  0.380  0.150  1.0
  N  N29  1  0.880  0.456  0.650  1.0
  N  N30  1  0.500  0.000  0.852  1.0
  N  N31  1  0.500  0.000  0.352  1.0
  N  N32  1  0.000  0.500  0.648  1.0
  N  N33  1  0.000  0.500  0.148  1.0
  N  N34  1  0.332  0.403  0.848  1.0
  N  N35  1  0.903  0.832  0.348  1.0
  N  N36  1  0.097  0.168  0.348  1.0
  N  N37  1  0.668  0.597  0.848  1.0
  N  N38  1  0.168  0.097  0.652  1.0
  N  N39  1  0.597  0.668  0.152  1.0
  N  N40  1  0.403  0.332  0.152  1.0
  N  N41  1  0.832  0.903  0.652  1.0
  N  N42  1  0.868  0.868  0.500  1.0
  N  N43  1  0.368  0.368  0.000  1.0
  N  N44  1  0.632  0.632  0.000  1.0
  N  N45  1  0.132  0.132  0.500  1.0
  O  O46  1  0.218  0.027  0.109  1.0
  O  O47  1  0.527  0.718  0.609  1.0
  O  O48  1  0.473  0.282  0.609  1.0
  O  O49  1  0.782  0.973  0.109  1.0
  O  O50  1  0.282  0.473  0.391  1.0
  O  O51  1  0.973  0.782  0.891  1.0
  O  O52  1  0.027  0.218  0.891  1.0
  O  O53  1  0.718  0.527  0.391  1.0
[/CIF]
.