The crystal structure described by HCO2Rb crystallizes in the orthorhombic Pbcm space group. Rb(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner, edge, and face-sharing RbO8 hexagonal bipyramids. C(1) is bonded in a trigonal planar geometry to one H(1), one O(1), and one O(2) atom. H(1) is bonded in a single-bond geometry to one C(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to four equivalent Rb(1) and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbHCO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.726
_cell_length_b   7.509
_cell_length_c   9.387
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   333.114
_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
  Rb  Rb0  1  0.939  0.500  0.250  1.0
  Rb  Rb1  1  0.061  0.000  0.750  1.0
  Rb  Rb2  1  0.061  0.500  0.750  1.0
  Rb  Rb3  1  0.939  0.000  0.250  1.0
  H  H4  1  0.438  0.750  0.028  1.0
  H  H5  1  0.438  0.250  0.472  1.0
  H  H6  1  0.562  0.750  0.528  1.0
  H  H7  1  0.562  0.250  0.972  1.0
  C  C8  1  0.383  0.250  0.050  1.0
  C  C9  1  0.383  0.750  0.450  1.0
  C  C10  1  0.617  0.750  0.950  1.0
  C  C11  1  0.617  0.250  0.550  1.0
  O  O12  1  0.134  0.250  0.999  1.0
  O  O13  1  0.134  0.750  0.501  1.0
  O  O14  1  0.866  0.250  0.499  1.0
  O  O15  1  0.866  0.750  0.001  1.0
  O  O16  1  0.449  0.250  0.182  1.0
  O  O17  1  0.449  0.750  0.318  1.0
  O  O18  1  0.551  0.750  0.818  1.0
  O  O19  1  0.551  0.250  0.682  1.0
[/CIF]
.
The crystal structure described by HCO2Rb crystallizes in the orthorhombic Pbcm space group. Rb(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner, edge, and face-sharing RbO8 hexagonal bipyramids. C(1) is bonded in a trigonal planar geometry to one H(1), one O(1), and one O(2) atom. H(1) is bonded in a single-bond geometry to one C(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to four equivalent Rb(1) and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbHCO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.726
_cell_length_b   7.509
_cell_length_c   9.387
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   333.114
_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
  Rb  Rb0  1  0.939  0.500  0.250  1.0
  Rb  Rb1  1  0.061  0.000  0.750  1.0
  Rb  Rb2  1  0.061  0.500  0.750  1.0
  Rb  Rb3  1  0.939  0.000  0.250  1.0
  H  H4  1  0.438  0.750  0.028  1.0
  H  H5  1  0.438  0.250  0.472  1.0
  H  H6  1  0.562  0.750  0.528  1.0
  H  H7  1  0.562  0.250  0.972  1.0
  C  C8  1  0.383  0.250  0.050  1.0
  C  C9  1  0.383  0.750  0.450  1.0
  C  C10  1  0.617  0.750  0.950  1.0
  C  C11  1  0.617  0.250  0.550  1.0
  O  O12  1  0.134  0.250  0.999  1.0
  O  O13  1  0.134  0.750  0.501  1.0
  O  O14  1  0.866  0.250  0.499  1.0
  O  O15  1  0.866  0.750  0.001  1.0
  O  O16  1  0.449  0.250  0.182  1.0
  O  O17  1  0.449  0.750  0.318  1.0
  O  O18  1  0.551  0.750  0.818  1.0
  O  O19  1  0.551  0.250  0.682  1.0
[/CIF]
.