The compound described by Cr2N2O7 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four Cr2N2O7 clusters. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing CrO4 tetrahedra. N(1) is bonded in a single-bond geometry to one O(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cr(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cr(1) and one N(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cr(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cr2N2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.636
_cell_length_b   7.636
_cell_length_c   8.761
_cell_angle_alpha   89.370
_cell_angle_beta   89.370
_cell_angle_gamma   67.210
_symmetry_Int_Tables_number   1
_cell_volume   470.929
_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
  Cr  Cr0  1  0.067  0.737  0.623  1.0
  Cr  Cr1  1  0.263  0.933  0.877  1.0
  Cr  Cr2  1  0.933  0.263  0.377  1.0
  Cr  Cr3  1  0.737  0.067  0.123  1.0
  N  N4  1  0.078  0.489  0.180  1.0
  N  N5  1  0.511  0.922  0.320  1.0
  N  N6  1  0.922  0.511  0.820  1.0
  N  N7  1  0.489  0.078  0.680  1.0
  O  O8  1  0.252  0.637  0.517  1.0
  O  O9  1  0.363  0.748  0.983  1.0
  O  O10  1  0.748  0.363  0.483  1.0
  O  O11  1  0.637  0.252  0.017  1.0
  O  O12  1  0.055  0.529  0.761  1.0
  O  O13  1  0.471  0.945  0.739  1.0
  O  O14  1  0.945  0.471  0.239  1.0
  O  O15  1  0.529  0.055  0.261  1.0
  O  O16  1  0.867  0.816  0.535  1.0
  O  O17  1  0.184  0.133  0.965  1.0
  O  O18  1  0.133  0.184  0.465  1.0
  O  O19  1  0.816  0.867  0.035  1.0
  O  O20  1  0.091  0.909  0.750  1.0
  O  O21  1  0.909  0.091  0.250  1.0
[/CIF]
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The compound described by Cr2N2O7 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four Cr2N2O7 clusters. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing CrO4 tetrahedra. N(1) is bonded in a single-bond geometry to one O(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cr(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cr(1) and one N(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cr(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cr2N2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.636
_cell_length_b   7.636
_cell_length_c   8.761
_cell_angle_alpha   89.370
_cell_angle_beta   89.370
_cell_angle_gamma   67.210
_symmetry_Int_Tables_number   1
_cell_volume   470.929
_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
  Cr  Cr0  1  0.067  0.737  0.623  1.0
  Cr  Cr1  1  0.263  0.933  0.877  1.0
  Cr  Cr2  1  0.933  0.263  0.377  1.0
  Cr  Cr3  1  0.737  0.067  0.123  1.0
  N  N4  1  0.078  0.489  0.180  1.0
  N  N5  1  0.511  0.922  0.320  1.0
  N  N6  1  0.922  0.511  0.820  1.0
  N  N7  1  0.489  0.078  0.680  1.0
  O  O8  1  0.252  0.637  0.517  1.0
  O  O9  1  0.363  0.748  0.983  1.0
  O  O10  1  0.748  0.363  0.483  1.0
  O  O11  1  0.637  0.252  0.017  1.0
  O  O12  1  0.055  0.529  0.761  1.0
  O  O13  1  0.471  0.945  0.739  1.0
  O  O14  1  0.945  0.471  0.239  1.0
  O  O15  1  0.529  0.055  0.261  1.0
  O  O16  1  0.867  0.816  0.535  1.0
  O  O17  1  0.184  0.133  0.965  1.0
  O  O18  1  0.133  0.184  0.465  1.0
  O  O19  1  0.816  0.867  0.035  1.0
  O  O20  1  0.091  0.909  0.750  1.0
  O  O21  1  0.909  0.091  0.250  1.0
[/CIF]
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