The material structure described by Ag2CO3 crystallizes in the trigonal P31c space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. In the second C site, C(2) is bonded in a trigonal planar geometry to three equivalent O(3) atoms. In the third C site, C(3) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ag(1), one Ag(2), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ag(2), two equivalent Ag(1), and one C(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ag(2), two equivalent Ag(1), and one C(2) atom. is represented by the CIF card [CIF]
data_Ag2CO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.282
_cell_length_b   9.282
_cell_length_c   6.079
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   453.540
_cell_formula_units_Z   6
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
  Ag  Ag0  1  0.018  0.669  0.495  1.0
  Ag  Ag1  1  0.982  0.651  0.995  1.0
  Ag  Ag2  1  0.331  0.349  0.495  1.0
  Ag  Ag3  1  0.303  0.969  0.282  1.0
  Ag  Ag4  1  0.031  0.334  0.282  1.0
  Ag  Ag5  1  0.666  0.697  0.282  1.0
  Ag  Ag6  1  0.697  0.666  0.782  1.0
  Ag  Ag7  1  0.651  0.982  0.495  1.0
  Ag  Ag8  1  0.969  0.303  0.782  1.0
  Ag  Ag9  1  0.334  0.031  0.782  1.0
  Ag  Ag10  1  0.349  0.331  0.995  1.0
  Ag  Ag11  1  0.669  0.018  0.995  1.0
  C  C12  1  0.000  0.000  0.878  1.0
  C  C13  1  0.333  0.667  0.727  1.0
  C  C14  1  0.667  0.333  0.227  1.0
  C  C15  1  0.000  0.000  0.378  1.0
  C  C16  1  0.667  0.333  0.713  1.0
  C  C17  1  0.333  0.667  0.213  1.0
  O  O18  1  0.922  0.840  0.377  1.0
  O  O19  1  0.419  0.827  0.213  1.0
  O  O20  1  0.408  0.581  0.213  1.0
  O  O21  1  0.731  0.238  0.229  1.0
  O  O22  1  0.581  0.408  0.713  1.0
  O  O23  1  0.840  0.922  0.877  1.0
  O  O24  1  0.762  0.493  0.229  1.0
  O  O25  1  0.918  0.078  0.377  1.0
  O  O26  1  0.082  0.160  0.877  1.0
  O  O27  1  0.592  0.173  0.713  1.0
  O  O28  1  0.173  0.592  0.213  1.0
  O  O29  1  0.827  0.419  0.713  1.0
  O  O30  1  0.078  0.918  0.877  1.0
  O  O31  1  0.507  0.269  0.229  1.0
  O  O32  1  0.269  0.507  0.729  1.0
  O  O33  1  0.160  0.082  0.377  1.0
  O  O34  1  0.238  0.731  0.729  1.0
  O  O35  1  0.493  0.762  0.729  1.0
[/CIF]
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The material structure described by Ag2CO3 crystallizes in the trigonal P31c space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. In the second C site, C(2) is bonded in a trigonal planar geometry to three equivalent O(3) atoms. In the third C site, C(3) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ag(1), one Ag(2), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ag(2), two equivalent Ag(1), and one C(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ag(2), two equivalent Ag(1), and one C(2) atom. is represented by the CIF card [CIF]
data_Ag2CO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.282
_cell_length_b   9.282
_cell_length_c   6.079
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   453.540
_cell_formula_units_Z   6
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
  Ag  Ag0  1  0.018  0.669  0.495  1.0
  Ag  Ag1  1  0.982  0.651  0.995  1.0
  Ag  Ag2  1  0.331  0.349  0.495  1.0
  Ag  Ag3  1  0.303  0.969  0.282  1.0
  Ag  Ag4  1  0.031  0.334  0.282  1.0
  Ag  Ag5  1  0.666  0.697  0.282  1.0
  Ag  Ag6  1  0.697  0.666  0.782  1.0
  Ag  Ag7  1  0.651  0.982  0.495  1.0
  Ag  Ag8  1  0.969  0.303  0.782  1.0
  Ag  Ag9  1  0.334  0.031  0.782  1.0
  Ag  Ag10  1  0.349  0.331  0.995  1.0
  Ag  Ag11  1  0.669  0.018  0.995  1.0
  C  C12  1  0.000  0.000  0.878  1.0
  C  C13  1  0.333  0.667  0.727  1.0
  C  C14  1  0.667  0.333  0.227  1.0
  C  C15  1  0.000  0.000  0.378  1.0
  C  C16  1  0.667  0.333  0.713  1.0
  C  C17  1  0.333  0.667  0.213  1.0
  O  O18  1  0.922  0.840  0.377  1.0
  O  O19  1  0.419  0.827  0.213  1.0
  O  O20  1  0.408  0.581  0.213  1.0
  O  O21  1  0.731  0.238  0.229  1.0
  O  O22  1  0.581  0.408  0.713  1.0
  O  O23  1  0.840  0.922  0.877  1.0
  O  O24  1  0.762  0.493  0.229  1.0
  O  O25  1  0.918  0.078  0.377  1.0
  O  O26  1  0.082  0.160  0.877  1.0
  O  O27  1  0.592  0.173  0.713  1.0
  O  O28  1  0.173  0.592  0.213  1.0
  O  O29  1  0.827  0.419  0.713  1.0
  O  O30  1  0.078  0.918  0.877  1.0
  O  O31  1  0.507  0.269  0.229  1.0
  O  O32  1  0.269  0.507  0.729  1.0
  O  O33  1  0.160  0.082  0.377  1.0
  O  O34  1  0.238  0.731  0.729  1.0
  O  O35  1  0.493  0.762  0.729  1.0
[/CIF]
.