The compound described by K2Mo(CO4)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(5), one O(7), one O(8), two equivalent O(2), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(4), one O(7), one O(8), two equivalent O(5), and two equivalent O(6) atoms. Mo(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(7), and two equivalent O(1) 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(3) and one O(6) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(5) atom. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(1), and one Mo(1) atom. In the second O site, O(5) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one C(2) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to two equivalent K(2) and one C(1) atom. In the fourth O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Mo(1) atom. In the fifth O site, O(8) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one O(8) atom. In the sixth O site, O(1) is bonded in a 3-coordinate geometry to one K(1) and two equivalent Mo(1) atoms. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1), one Mo(1), and one C(2) atom. In the eighth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Mo(1), and one C(1) atom. is represented by the CIF file [CIF]
data_K2Mo(CO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.942
_cell_length_b   7.558
_cell_length_c   9.071
_cell_angle_alpha   85.749
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   884.879
_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
  K  K0  1  0.515  0.270  0.370  1.0
  K  K1  1  0.015  0.230  0.630  1.0
  K  K2  1  0.485  0.730  0.630  1.0
  K  K3  1  0.985  0.770  0.370  1.0
  K  K4  1  0.367  0.159  0.900  1.0
  K  K5  1  0.867  0.341  0.100  1.0
  K  K6  1  0.633  0.841  0.100  1.0
  K  K7  1  0.133  0.659  0.900  1.0
  Mo  Mo8  1  0.266  0.434  0.545  1.0
  Mo  Mo9  1  0.766  0.066  0.455  1.0
  Mo  Mo10  1  0.734  0.566  0.455  1.0
  Mo  Mo11  1  0.234  0.934  0.545  1.0
  C  C12  1  0.248  0.430  0.207  1.0
  C  C13  1  0.748  0.070  0.793  1.0
  C  C14  1  0.752  0.570  0.793  1.0
  C  C15  1  0.252  0.930  0.207  1.0
  C  C16  1  0.136  0.472  0.260  1.0
  C  C17  1  0.636  0.028  0.740  1.0
  C  C18  1  0.864  0.528  0.740  1.0
  C  C19  1  0.364  0.972  0.260  1.0
  O  O20  1  0.282  0.676  0.513  1.0
  O  O21  1  0.782  0.824  0.487  1.0
  O  O22  1  0.718  0.324  0.487  1.0
  O  O23  1  0.218  0.176  0.513  1.0
  O  O24  1  0.126  0.474  0.401  1.0
  O  O25  1  0.626  0.026  0.599  1.0
  O  O26  1  0.874  0.526  0.599  1.0
  O  O27  1  0.374  0.974  0.401  1.0
  O  O28  1  0.316  0.410  0.312  1.0
  O  O29  1  0.816  0.090  0.688  1.0
  O  O30  1  0.684  0.590  0.688  1.0
  O  O31  1  0.184  0.910  0.312  1.0
  O  O32  1  0.392  0.371  0.605  1.0
  O  O33  1  0.892  0.129  0.395  1.0
  O  O34  1  0.608  0.629  0.395  1.0
  O  O35  1  0.108  0.871  0.605  1.0
  O  O36  1  0.066  0.504  0.167  1.0
  O  O37  1  0.566  0.996  0.833  1.0
  O  O38  1  0.934  0.496  0.833  1.0
  O  O39  1  0.434  0.004  0.167  1.0
  O  O40  1  0.266  0.419  0.073  1.0
  O  O41  1  0.766  0.081  0.927  1.0
  O  O42  1  0.734  0.581  0.927  1.0
  O  O43  1  0.234  0.919  0.073  1.0
  O  O44  1  0.190  0.422  0.707  1.0
  O  O45  1  0.690  0.078  0.293  1.0
  O  O46  1  0.810  0.578  0.293  1.0
  O  O47  1  0.310  0.922  0.707  1.0
  O  O48  1  0.530  0.438  0.016  1.0
  O  O49  1  0.030  0.062  0.984  1.0
  O  O50  1  0.470  0.562  0.984  1.0
  O  O51  1  0.970  0.938  0.016  1.0
[/CIF]
.
The compound described by K2Mo(CO4)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(5), one O(7), one O(8), two equivalent O(2), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(4), one O(7), one O(8), two equivalent O(5), and two equivalent O(6) atoms. Mo(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(7), and two equivalent O(1) 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(3) and one O(6) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(5) atom. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(1), and one Mo(1) atom. In the second O site, O(5) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one C(2) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to two equivalent K(2) and one C(1) atom. In the fourth O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Mo(1) atom. In the fifth O site, O(8) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one O(8) atom. In the sixth O site, O(1) is bonded in a 3-coordinate geometry to one K(1) and two equivalent Mo(1) atoms. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1), one Mo(1), and one C(2) atom. In the eighth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Mo(1), and one C(1) atom. is represented by the CIF file [CIF]
data_K2Mo(CO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.942
_cell_length_b   7.558
_cell_length_c   9.071
_cell_angle_alpha   85.749
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   884.879
_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
  K  K0  1  0.515  0.270  0.370  1.0
  K  K1  1  0.015  0.230  0.630  1.0
  K  K2  1  0.485  0.730  0.630  1.0
  K  K3  1  0.985  0.770  0.370  1.0
  K  K4  1  0.367  0.159  0.900  1.0
  K  K5  1  0.867  0.341  0.100  1.0
  K  K6  1  0.633  0.841  0.100  1.0
  K  K7  1  0.133  0.659  0.900  1.0
  Mo  Mo8  1  0.266  0.434  0.545  1.0
  Mo  Mo9  1  0.766  0.066  0.455  1.0
  Mo  Mo10  1  0.734  0.566  0.455  1.0
  Mo  Mo11  1  0.234  0.934  0.545  1.0
  C  C12  1  0.248  0.430  0.207  1.0
  C  C13  1  0.748  0.070  0.793  1.0
  C  C14  1  0.752  0.570  0.793  1.0
  C  C15  1  0.252  0.930  0.207  1.0
  C  C16  1  0.136  0.472  0.260  1.0
  C  C17  1  0.636  0.028  0.740  1.0
  C  C18  1  0.864  0.528  0.740  1.0
  C  C19  1  0.364  0.972  0.260  1.0
  O  O20  1  0.282  0.676  0.513  1.0
  O  O21  1  0.782  0.824  0.487  1.0
  O  O22  1  0.718  0.324  0.487  1.0
  O  O23  1  0.218  0.176  0.513  1.0
  O  O24  1  0.126  0.474  0.401  1.0
  O  O25  1  0.626  0.026  0.599  1.0
  O  O26  1  0.874  0.526  0.599  1.0
  O  O27  1  0.374  0.974  0.401  1.0
  O  O28  1  0.316  0.410  0.312  1.0
  O  O29  1  0.816  0.090  0.688  1.0
  O  O30  1  0.684  0.590  0.688  1.0
  O  O31  1  0.184  0.910  0.312  1.0
  O  O32  1  0.392  0.371  0.605  1.0
  O  O33  1  0.892  0.129  0.395  1.0
  O  O34  1  0.608  0.629  0.395  1.0
  O  O35  1  0.108  0.871  0.605  1.0
  O  O36  1  0.066  0.504  0.167  1.0
  O  O37  1  0.566  0.996  0.833  1.0
  O  O38  1  0.934  0.496  0.833  1.0
  O  O39  1  0.434  0.004  0.167  1.0
  O  O40  1  0.266  0.419  0.073  1.0
  O  O41  1  0.766  0.081  0.927  1.0
  O  O42  1  0.734  0.581  0.927  1.0
  O  O43  1  0.234  0.919  0.073  1.0
  O  O44  1  0.190  0.422  0.707  1.0
  O  O45  1  0.690  0.078  0.293  1.0
  O  O46  1  0.810  0.578  0.293  1.0
  O  O47  1  0.310  0.922  0.707  1.0
  O  O48  1  0.530  0.438  0.016  1.0
  O  O49  1  0.030  0.062  0.984  1.0
  O  O50  1  0.470  0.562  0.984  1.0
  O  O51  1  0.970  0.938  0.016  1.0
[/CIF]
.