The structure described by Rb2Mo(CO4)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(4), one O(6), one O(8), two equivalent O(2), and two equivalent O(5) atoms. In the second Rb site, Rb(2) is bonded in a 9-coordinate geometry to one O(5), two equivalent O(1), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. Mo(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(6) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent Mo(1) atoms. In the second O site, O(5) is bonded in a distorted single-bond geometry to one Rb(2), two equivalent Rb(1), and one Mo(1) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one C(1) atom. In the fourth O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Rb(2) and one C(2) atom. In the fifth O site, O(8) is bonded in a 4-coordinate geometry to one Rb(1), two equivalent Rb(2), and one O(8) atom. In the sixth O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one Mo(1) atom. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1), one Mo(1), and one C(1) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Mo(1), and one C(2) atom. is represented by the CIF file [CIF]
data_Rb2Mo(CO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.528
_cell_length_b   7.740
_cell_length_c   9.221
_cell_angle_alpha   84.331
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   960.696
_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  0.986  0.774  0.366  1.0
  Rb  Rb1  1  0.486  0.726  0.634  1.0
  Rb  Rb2  1  0.014  0.226  0.634  1.0
  Rb  Rb3  1  0.514  0.274  0.366  1.0
  Rb  Rb4  1  0.864  0.335  0.110  1.0
  Rb  Rb5  1  0.364  0.165  0.890  1.0
  Rb  Rb6  1  0.136  0.665  0.890  1.0
  Rb  Rb7  1  0.636  0.835  0.110  1.0
  Mo  Mo8  1  0.764  0.061  0.461  1.0
  Mo  Mo9  1  0.264  0.439  0.539  1.0
  Mo  Mo10  1  0.236  0.939  0.539  1.0
  Mo  Mo11  1  0.736  0.561  0.461  1.0
  C  C12  1  0.638  0.034  0.740  1.0
  C  C13  1  0.138  0.466  0.260  1.0
  C  C14  1  0.362  0.966  0.260  1.0
  C  C15  1  0.862  0.534  0.740  1.0
  C  C16  1  0.746  0.066  0.793  1.0
  C  C17  1  0.246  0.434  0.207  1.0
  C  C18  1  0.254  0.934  0.207  1.0
  C  C19  1  0.754  0.566  0.793  1.0
  O  O20  1  0.693  0.088  0.300  1.0
  O  O21  1  0.193  0.412  0.700  1.0
  O  O22  1  0.307  0.912  0.700  1.0
  O  O23  1  0.807  0.588  0.300  1.0
  O  O24  1  0.629  0.034  0.600  1.0
  O  O25  1  0.129  0.466  0.400  1.0
  O  O26  1  0.371  0.966  0.400  1.0
  O  O27  1  0.871  0.534  0.600  1.0
  O  O28  1  0.811  0.082  0.690  1.0
  O  O29  1  0.311  0.418  0.310  1.0
  O  O30  1  0.189  0.918  0.310  1.0
  O  O31  1  0.689  0.582  0.690  1.0
  O  O32  1  0.777  0.826  0.489  1.0
  O  O33  1  0.277  0.674  0.511  1.0
  O  O34  1  0.223  0.174  0.511  1.0
  O  O35  1  0.723  0.326  0.489  1.0
  O  O36  1  0.886  0.123  0.403  1.0
  O  O37  1  0.386  0.377  0.597  1.0
  O  O38  1  0.114  0.877  0.597  1.0
  O  O39  1  0.614  0.623  0.403  1.0
  O  O40  1  0.569  0.007  0.829  1.0
  O  O41  1  0.069  0.493  0.171  1.0
  O  O42  1  0.431  0.993  0.171  1.0
  O  O43  1  0.931  0.507  0.829  1.0
  O  O44  1  0.763  0.073  0.925  1.0
  O  O45  1  0.263  0.427  0.075  1.0
  O  O46  1  0.237  0.927  0.075  1.0
  O  O47  1  0.737  0.573  0.925  1.0
  O  O48  1  0.965  0.948  0.011  1.0
  O  O49  1  0.465  0.552  0.989  1.0
  O  O50  1  0.035  0.052  0.989  1.0
  O  O51  1  0.535  0.448  0.011  1.0
[/CIF]
.
The structure described by Rb2Mo(CO4)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(4), one O(6), one O(8), two equivalent O(2), and two equivalent O(5) atoms. In the second Rb site, Rb(2) is bonded in a 9-coordinate geometry to one O(5), two equivalent O(1), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. Mo(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(6) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent Mo(1) atoms. In the second O site, O(5) is bonded in a distorted single-bond geometry to one Rb(2), two equivalent Rb(1), and one Mo(1) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one C(1) atom. In the fourth O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Rb(2) and one C(2) atom. In the fifth O site, O(8) is bonded in a 4-coordinate geometry to one Rb(1), two equivalent Rb(2), and one O(8) atom. In the sixth O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one Mo(1) atom. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1), one Mo(1), and one C(1) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Mo(1), and one C(2) atom. is represented by the CIF file [CIF]
data_Rb2Mo(CO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.528
_cell_length_b   7.740
_cell_length_c   9.221
_cell_angle_alpha   84.331
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   960.696
_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  0.986  0.774  0.366  1.0
  Rb  Rb1  1  0.486  0.726  0.634  1.0
  Rb  Rb2  1  0.014  0.226  0.634  1.0
  Rb  Rb3  1  0.514  0.274  0.366  1.0
  Rb  Rb4  1  0.864  0.335  0.110  1.0
  Rb  Rb5  1  0.364  0.165  0.890  1.0
  Rb  Rb6  1  0.136  0.665  0.890  1.0
  Rb  Rb7  1  0.636  0.835  0.110  1.0
  Mo  Mo8  1  0.764  0.061  0.461  1.0
  Mo  Mo9  1  0.264  0.439  0.539  1.0
  Mo  Mo10  1  0.236  0.939  0.539  1.0
  Mo  Mo11  1  0.736  0.561  0.461  1.0
  C  C12  1  0.638  0.034  0.740  1.0
  C  C13  1  0.138  0.466  0.260  1.0
  C  C14  1  0.362  0.966  0.260  1.0
  C  C15  1  0.862  0.534  0.740  1.0
  C  C16  1  0.746  0.066  0.793  1.0
  C  C17  1  0.246  0.434  0.207  1.0
  C  C18  1  0.254  0.934  0.207  1.0
  C  C19  1  0.754  0.566  0.793  1.0
  O  O20  1  0.693  0.088  0.300  1.0
  O  O21  1  0.193  0.412  0.700  1.0
  O  O22  1  0.307  0.912  0.700  1.0
  O  O23  1  0.807  0.588  0.300  1.0
  O  O24  1  0.629  0.034  0.600  1.0
  O  O25  1  0.129  0.466  0.400  1.0
  O  O26  1  0.371  0.966  0.400  1.0
  O  O27  1  0.871  0.534  0.600  1.0
  O  O28  1  0.811  0.082  0.690  1.0
  O  O29  1  0.311  0.418  0.310  1.0
  O  O30  1  0.189  0.918  0.310  1.0
  O  O31  1  0.689  0.582  0.690  1.0
  O  O32  1  0.777  0.826  0.489  1.0
  O  O33  1  0.277  0.674  0.511  1.0
  O  O34  1  0.223  0.174  0.511  1.0
  O  O35  1  0.723  0.326  0.489  1.0
  O  O36  1  0.886  0.123  0.403  1.0
  O  O37  1  0.386  0.377  0.597  1.0
  O  O38  1  0.114  0.877  0.597  1.0
  O  O39  1  0.614  0.623  0.403  1.0
  O  O40  1  0.569  0.007  0.829  1.0
  O  O41  1  0.069  0.493  0.171  1.0
  O  O42  1  0.431  0.993  0.171  1.0
  O  O43  1  0.931  0.507  0.829  1.0
  O  O44  1  0.763  0.073  0.925  1.0
  O  O45  1  0.263  0.427  0.075  1.0
  O  O46  1  0.237  0.927  0.075  1.0
  O  O47  1  0.737  0.573  0.925  1.0
  O  O48  1  0.965  0.948  0.011  1.0
  O  O49  1  0.465  0.552  0.989  1.0
  O  O50  1  0.035  0.052  0.989  1.0
  O  O51  1  0.535  0.448  0.011  1.0
[/CIF]
.