The structure described by Ce(CO2)3 crystallizes in the orthorhombic Pnma space group. Ce(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one O(1) and one O(2) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. There are four inequivalent O sites. In the first O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ce(1) and one C(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ce(1) and one C(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Ce(1) and one C(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ce(1) and one C(2) atom. is represented by the CIF file [CIF]
data_Ce(CO2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.728
_cell_length_b   7.254
_cell_length_c   10.899
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   531.968
_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
  Ce  Ce0  1  0.373  0.710  0.250  1.0
  Ce  Ce1  1  0.127  0.210  0.250  1.0
  Ce  Ce2  1  0.627  0.290  0.750  1.0
  Ce  Ce3  1  0.873  0.790  0.750  1.0
  C  C4  1  0.866  0.627  0.250  1.0
  C  C5  1  0.634  0.127  0.250  1.0
  C  C6  1  0.134  0.373  0.750  1.0
  C  C7  1  0.366  0.873  0.750  1.0
  C  C8  1  0.048  0.909  0.478  1.0
  C  C9  1  0.452  0.409  0.022  1.0
  C  C10  1  0.952  0.091  0.978  1.0
  C  C11  1  0.548  0.591  0.522  1.0
  C  C12  1  0.952  0.091  0.522  1.0
  C  C13  1  0.548  0.591  0.978  1.0
  C  C14  1  0.048  0.909  0.022  1.0
  C  C15  1  0.452  0.409  0.478  1.0
  O  O16  1  0.036  0.550  0.250  1.0
  O  O17  1  0.464  0.050  0.250  1.0
  O  O18  1  0.964  0.450  0.750  1.0
  O  O19  1  0.536  0.950  0.750  1.0
  O  O20  1  0.702  0.549  0.250  1.0
  O  O21  1  0.798  0.049  0.250  1.0
  O  O22  1  0.298  0.451  0.750  1.0
  O  O23  1  0.202  0.951  0.750  1.0
  O  O24  1  0.148  0.920  0.379  1.0
  O  O25  1  0.352  0.420  0.121  1.0
  O  O26  1  0.852  0.080  0.879  1.0
  O  O27  1  0.648  0.580  0.621  1.0
  O  O28  1  0.852  0.080  0.621  1.0
  O  O29  1  0.648  0.580  0.879  1.0
  O  O30  1  0.148  0.920  0.121  1.0
  O  O31  1  0.352  0.420  0.379  1.0
  O  O32  1  0.022  0.767  0.542  1.0
  O  O33  1  0.478  0.267  0.958  1.0
  O  O34  1  0.978  0.233  0.042  1.0
  O  O35  1  0.522  0.733  0.458  1.0
  O  O36  1  0.978  0.233  0.458  1.0
  O  O37  1  0.522  0.733  0.042  1.0
  O  O38  1  0.022  0.767  0.958  1.0
  O  O39  1  0.478  0.267  0.542  1.0
[/CIF]
.
The structure described by Ce(CO2)3 crystallizes in the orthorhombic Pnma space group. Ce(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one O(1) and one O(2) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. There are four inequivalent O sites. In the first O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ce(1) and one C(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ce(1) and one C(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Ce(1) and one C(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ce(1) and one C(2) atom. is represented by the CIF file [CIF]
data_Ce(CO2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.728
_cell_length_b   7.254
_cell_length_c   10.899
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   531.968
_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
  Ce  Ce0  1  0.373  0.710  0.250  1.0
  Ce  Ce1  1  0.127  0.210  0.250  1.0
  Ce  Ce2  1  0.627  0.290  0.750  1.0
  Ce  Ce3  1  0.873  0.790  0.750  1.0
  C  C4  1  0.866  0.627  0.250  1.0
  C  C5  1  0.634  0.127  0.250  1.0
  C  C6  1  0.134  0.373  0.750  1.0
  C  C7  1  0.366  0.873  0.750  1.0
  C  C8  1  0.048  0.909  0.478  1.0
  C  C9  1  0.452  0.409  0.022  1.0
  C  C10  1  0.952  0.091  0.978  1.0
  C  C11  1  0.548  0.591  0.522  1.0
  C  C12  1  0.952  0.091  0.522  1.0
  C  C13  1  0.548  0.591  0.978  1.0
  C  C14  1  0.048  0.909  0.022  1.0
  C  C15  1  0.452  0.409  0.478  1.0
  O  O16  1  0.036  0.550  0.250  1.0
  O  O17  1  0.464  0.050  0.250  1.0
  O  O18  1  0.964  0.450  0.750  1.0
  O  O19  1  0.536  0.950  0.750  1.0
  O  O20  1  0.702  0.549  0.250  1.0
  O  O21  1  0.798  0.049  0.250  1.0
  O  O22  1  0.298  0.451  0.750  1.0
  O  O23  1  0.202  0.951  0.750  1.0
  O  O24  1  0.148  0.920  0.379  1.0
  O  O25  1  0.352  0.420  0.121  1.0
  O  O26  1  0.852  0.080  0.879  1.0
  O  O27  1  0.648  0.580  0.621  1.0
  O  O28  1  0.852  0.080  0.621  1.0
  O  O29  1  0.648  0.580  0.879  1.0
  O  O30  1  0.148  0.920  0.121  1.0
  O  O31  1  0.352  0.420  0.379  1.0
  O  O32  1  0.022  0.767  0.542  1.0
  O  O33  1  0.478  0.267  0.958  1.0
  O  O34  1  0.978  0.233  0.042  1.0
  O  O35  1  0.522  0.733  0.458  1.0
  O  O36  1  0.978  0.233  0.458  1.0
  O  O37  1  0.522  0.733  0.042  1.0
  O  O38  1  0.022  0.767  0.958  1.0
  O  O39  1  0.478  0.267  0.542  1.0
[/CIF]
.