The crystal structure described by TmCr2O2 crystallizes in the tetragonal I4_1/amd space group. Tm(1) is bonded in a linear geometry to two equivalent O(1) atoms. Cr(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. O(1) is bonded in a distorted rectangular see-saw-like geometry to one Tm(1) and three equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_TmCr2O2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.894
_cell_length_b   7.894
_cell_length_c   7.894
_cell_angle_alpha   111.024
_cell_angle_beta   111.024
_cell_angle_gamma   106.409
_symmetry_Int_Tables_number   1
_cell_volume   377.927
_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
  Tm  Tm0  1  0.875  0.125  0.250  1.0
  Tm  Tm1  1  0.875  0.625  0.750  1.0
  Tm  Tm2  1  0.375  0.125  0.250  1.0
  Tm  Tm3  1  0.875  0.125  0.750  1.0
  Cr  Cr4  1  0.519  0.213  0.695  1.0
  Cr  Cr5  1  0.519  0.824  0.305  1.0
  Cr  Cr6  1  0.574  0.769  0.805  1.0
  Cr  Cr7  1  0.231  0.426  0.195  1.0
  Cr  Cr8  1  0.231  0.037  0.805  1.0
  Cr  Cr9  1  0.963  0.769  0.195  1.0
  Cr  Cr10  1  0.176  0.481  0.695  1.0
  Cr  Cr11  1  0.787  0.481  0.305  1.0
  O  O12  1  0.673  0.521  0.849  1.0
  O  O13  1  0.673  0.824  0.151  1.0
  O  O14  1  0.574  0.923  0.651  1.0
  O  O15  1  0.077  0.426  0.349  1.0
  O  O16  1  0.077  0.729  0.651  1.0
  O  O17  1  0.271  0.923  0.349  1.0
  O  O18  1  0.176  0.327  0.849  1.0
  O  O19  1  0.479  0.327  0.151  1.0
[/CIF]
.
The crystal structure described by TmCr2O2 crystallizes in the tetragonal I4_1/amd space group. Tm(1) is bonded in a linear geometry to two equivalent O(1) atoms. Cr(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. O(1) is bonded in a distorted rectangular see-saw-like geometry to one Tm(1) and three equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_TmCr2O2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.894
_cell_length_b   7.894
_cell_length_c   7.894
_cell_angle_alpha   111.024
_cell_angle_beta   111.024
_cell_angle_gamma   106.409
_symmetry_Int_Tables_number   1
_cell_volume   377.927
_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
  Tm  Tm0  1  0.875  0.125  0.250  1.0
  Tm  Tm1  1  0.875  0.625  0.750  1.0
  Tm  Tm2  1  0.375  0.125  0.250  1.0
  Tm  Tm3  1  0.875  0.125  0.750  1.0
  Cr  Cr4  1  0.519  0.213  0.695  1.0
  Cr  Cr5  1  0.519  0.824  0.305  1.0
  Cr  Cr6  1  0.574  0.769  0.805  1.0
  Cr  Cr7  1  0.231  0.426  0.195  1.0
  Cr  Cr8  1  0.231  0.037  0.805  1.0
  Cr  Cr9  1  0.963  0.769  0.195  1.0
  Cr  Cr10  1  0.176  0.481  0.695  1.0
  Cr  Cr11  1  0.787  0.481  0.305  1.0
  O  O12  1  0.673  0.521  0.849  1.0
  O  O13  1  0.673  0.824  0.151  1.0
  O  O14  1  0.574  0.923  0.651  1.0
  O  O15  1  0.077  0.426  0.349  1.0
  O  O16  1  0.077  0.729  0.651  1.0
  O  O17  1  0.271  0.923  0.349  1.0
  O  O18  1  0.176  0.327  0.849  1.0
  O  O19  1  0.479  0.327  0.151  1.0
[/CIF]
.