The compound described by ErC3O8 crystallizes in the orthorhombic P2_12_12_1 space group. Er(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are three inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one O(1) and one O(2) atom. In the second C site, C(2) is bonded in a linear geometry to one O(3) and one O(4) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a bent 150 degrees geometry to one Er(1) and one C(3) atom. In the second O site, O(6) is bonded in an L-shaped geometry to one Er(1) and one C(3) atom. In the third O site, O(7) is bonded in a single-bond geometry to one Er(1) atom. In the fourth O site, O(8) is bonded in an L-shaped geometry to one Er(1) and one C(3) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to one Er(1) and one C(1) atom. In the sixth O site, O(2) is bonded in a distorted linear geometry to one Er(1) and one C(1) atom. In the seventh O site, O(3) is bonded in a single-bond geometry to one C(2) atom. In the eighth O site, O(4) is bonded in a distorted linear geometry to one Er(1) and one C(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErC3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.232
_cell_length_b   8.885
_cell_length_c   12.687
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   815.165
_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
  Er  Er0  1  0.750  0.471  0.801  1.0
  Er  Er1  1  0.250  0.971  0.699  1.0
  Er  Er2  1  0.750  0.529  0.301  1.0
  Er  Er3  1  0.250  0.029  0.199  1.0
  C  C4  1  0.448  0.212  0.954  1.0
  C  C5  1  0.552  0.712  0.546  1.0
  C  C6  1  0.052  0.788  0.454  1.0
  C  C7  1  0.948  0.288  0.046  1.0
  C  C8  1  0.942  0.776  0.039  1.0
  C  C9  1  0.058  0.276  0.461  1.0
  C  C10  1  0.558  0.224  0.539  1.0
  C  C11  1  0.442  0.724  0.961  1.0
  C  C12  1  0.024  0.652  0.743  1.0
  C  C13  1  0.976  0.152  0.757  1.0
  C  C14  1  0.476  0.348  0.243  1.0
  C  C15  1  0.524  0.848  0.257  1.0
  O  O16  1  0.879  0.374  0.988  1.0
  O  O17  1  0.121  0.874  0.512  1.0
  O  O18  1  0.621  0.626  0.488  1.0
  O  O19  1  0.379  0.126  0.012  1.0
  O  O20  1  0.518  0.306  0.903  1.0
  O  O21  1  0.482  0.806  0.597  1.0
  O  O22  1  0.982  0.694  0.403  1.0
  O  O23  1  0.018  0.194  0.097  1.0
  O  O24  1  0.872  0.706  0.971  1.0
  O  O25  1  0.128  0.206  0.529  1.0
  O  O26  1  0.628  0.294  0.471  1.0
  O  O27  1  0.372  0.794  0.029  1.0
  O  O28  1  0.512  0.641  0.901  1.0
  O  O29  1  0.488  0.141  0.599  1.0
  O  O30  1  0.988  0.359  0.401  1.0
  O  O31  1  0.012  0.859  0.099  1.0
  O  O32  1  0.845  0.246  0.773  1.0
  O  O33  1  0.155  0.746  0.727  1.0
  O  O34  1  0.655  0.754  0.273  1.0
  O  O35  1  0.345  0.254  0.227  1.0
  O  O36  1  0.052  0.531  0.798  1.0
  O  O37  1  0.948  0.031  0.702  1.0
  O  O38  1  0.448  0.469  0.298  1.0
  O  O39  1  0.552  0.969  0.202  1.0
  O  O40  1  0.577  0.462  0.669  1.0
  O  O41  1  0.423  0.962  0.831  1.0
  O  O42  1  0.923  0.538  0.169  1.0
  O  O43  1  0.077  0.038  0.331  1.0
  O  O44  1  0.857  0.673  0.706  1.0
  O  O45  1  0.143  0.173  0.794  1.0
  O  O46  1  0.643  0.327  0.206  1.0
  O  O47  1  0.357  0.827  0.294  1.0
[/CIF]
.
The compound described by ErC3O8 crystallizes in the orthorhombic P2_12_12_1 space group. Er(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are three inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one O(1) and one O(2) atom. In the second C site, C(2) is bonded in a linear geometry to one O(3) and one O(4) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a bent 150 degrees geometry to one Er(1) and one C(3) atom. In the second O site, O(6) is bonded in an L-shaped geometry to one Er(1) and one C(3) atom. In the third O site, O(7) is bonded in a single-bond geometry to one Er(1) atom. In the fourth O site, O(8) is bonded in an L-shaped geometry to one Er(1) and one C(3) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to one Er(1) and one C(1) atom. In the sixth O site, O(2) is bonded in a distorted linear geometry to one Er(1) and one C(1) atom. In the seventh O site, O(3) is bonded in a single-bond geometry to one C(2) atom. In the eighth O site, O(4) is bonded in a distorted linear geometry to one Er(1) and one C(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErC3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.232
_cell_length_b   8.885
_cell_length_c   12.687
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   815.165
_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
  Er  Er0  1  0.750  0.471  0.801  1.0
  Er  Er1  1  0.250  0.971  0.699  1.0
  Er  Er2  1  0.750  0.529  0.301  1.0
  Er  Er3  1  0.250  0.029  0.199  1.0
  C  C4  1  0.448  0.212  0.954  1.0
  C  C5  1  0.552  0.712  0.546  1.0
  C  C6  1  0.052  0.788  0.454  1.0
  C  C7  1  0.948  0.288  0.046  1.0
  C  C8  1  0.942  0.776  0.039  1.0
  C  C9  1  0.058  0.276  0.461  1.0
  C  C10  1  0.558  0.224  0.539  1.0
  C  C11  1  0.442  0.724  0.961  1.0
  C  C12  1  0.024  0.652  0.743  1.0
  C  C13  1  0.976  0.152  0.757  1.0
  C  C14  1  0.476  0.348  0.243  1.0
  C  C15  1  0.524  0.848  0.257  1.0
  O  O16  1  0.879  0.374  0.988  1.0
  O  O17  1  0.121  0.874  0.512  1.0
  O  O18  1  0.621  0.626  0.488  1.0
  O  O19  1  0.379  0.126  0.012  1.0
  O  O20  1  0.518  0.306  0.903  1.0
  O  O21  1  0.482  0.806  0.597  1.0
  O  O22  1  0.982  0.694  0.403  1.0
  O  O23  1  0.018  0.194  0.097  1.0
  O  O24  1  0.872  0.706  0.971  1.0
  O  O25  1  0.128  0.206  0.529  1.0
  O  O26  1  0.628  0.294  0.471  1.0
  O  O27  1  0.372  0.794  0.029  1.0
  O  O28  1  0.512  0.641  0.901  1.0
  O  O29  1  0.488  0.141  0.599  1.0
  O  O30  1  0.988  0.359  0.401  1.0
  O  O31  1  0.012  0.859  0.099  1.0
  O  O32  1  0.845  0.246  0.773  1.0
  O  O33  1  0.155  0.746  0.727  1.0
  O  O34  1  0.655  0.754  0.273  1.0
  O  O35  1  0.345  0.254  0.227  1.0
  O  O36  1  0.052  0.531  0.798  1.0
  O  O37  1  0.948  0.031  0.702  1.0
  O  O38  1  0.448  0.469  0.298  1.0
  O  O39  1  0.552  0.969  0.202  1.0
  O  O40  1  0.577  0.462  0.669  1.0
  O  O41  1  0.423  0.962  0.831  1.0
  O  O42  1  0.923  0.538  0.169  1.0
  O  O43  1  0.077  0.038  0.331  1.0
  O  O44  1  0.857  0.673  0.706  1.0
  O  O45  1  0.143  0.173  0.794  1.0
  O  O46  1  0.643  0.327  0.206  1.0
  O  O47  1  0.357  0.827  0.294  1.0
[/CIF]
.