The crystal structure described by K5Sm(MoO4)4 crystallizes in the monoclinic P2/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to one O(3), one O(6), and four equivalent O(2) atoms. In the third K site, K(3) is bonded in a 6-coordinate geometry to two equivalent O(6) and four equivalent O(2) atoms. Sm(1) is bonded to two equivalent O(4) and four equivalent O(1) atoms to form SmO6 octahedra that share corners with two equivalent Mo(2)O4 tetrahedra and corners with four equivalent Mo(1)O4 tetrahedra. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(3), one O(6), and two equivalent O(1) atoms to form MoO4 tetrahedra that share corners with two equivalent Sm(1)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the second Mo site, Mo(2) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form MoO4 tetrahedra that share  a cornercorner with one Sm(1)O6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one Sm(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), one K(3), two equivalent K(2), and one Mo(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(1), and one Mo(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a linear geometry to one K(1) and one Mo(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(2), one K(3), and one Mo(1) atom. is represented by the CIF file [CIF]
data_K5Sm(MoO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.254
_cell_length_b   7.889
_cell_length_c   9.838
_cell_angle_alpha   73.765
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   466.009
_cell_formula_units_Z   1
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  0.500  0.160  0.283  1.0
  K  K1  1  0.000  0.592  0.816  1.0
  K  K2  1  0.500  0.840  0.717  1.0
  K  K3  1  0.000  0.408  0.184  1.0
  K  K4  1  0.000  0.000  0.000  1.0
  Sm  Sm5  1  0.500  0.500  0.500  1.0
  Mo  Mo6  1  0.000  0.200  0.601  1.0
  Mo  Mo7  1  0.500  0.715  0.099  1.0
  Mo  Mo8  1  0.000  0.800  0.399  1.0
  Mo  Mo9  1  0.500  0.285  0.901  1.0
  O  O10  1  0.241  0.716  0.502  1.0
  O  O11  1  0.729  0.287  0.010  1.0
  O  O12  1  0.000  0.035  0.331  1.0
  O  O13  1  0.500  0.479  0.743  1.0
  O  O14  1  0.759  0.716  0.502  1.0
  O  O15  1  0.271  0.287  0.010  1.0
  O  O16  1  0.759  0.284  0.498  1.0
  O  O17  1  0.271  0.713  0.990  1.0
  O  O18  1  0.000  0.965  0.669  1.0
  O  O19  1  0.500  0.521  0.257  1.0
  O  O20  1  0.241  0.284  0.498  1.0
  O  O21  1  0.729  0.713  0.990  1.0
  O  O22  1  0.500  0.907  0.160  1.0
  O  O23  1  0.000  0.288  0.747  1.0
  O  O24  1  0.500  0.093  0.840  1.0
  O  O25  1  0.000  0.712  0.253  1.0
[/CIF]
.
The crystal structure described by K5Sm(MoO4)4 crystallizes in the monoclinic P2/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to one O(3), one O(6), and four equivalent O(2) atoms. In the third K site, K(3) is bonded in a 6-coordinate geometry to two equivalent O(6) and four equivalent O(2) atoms. Sm(1) is bonded to two equivalent O(4) and four equivalent O(1) atoms to form SmO6 octahedra that share corners with two equivalent Mo(2)O4 tetrahedra and corners with four equivalent Mo(1)O4 tetrahedra. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(3), one O(6), and two equivalent O(1) atoms to form MoO4 tetrahedra that share corners with two equivalent Sm(1)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the second Mo site, Mo(2) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form MoO4 tetrahedra that share  a cornercorner with one Sm(1)O6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one Sm(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), one K(3), two equivalent K(2), and one Mo(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(1), and one Mo(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a linear geometry to one K(1) and one Mo(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(2), one K(3), and one Mo(1) atom. is represented by the CIF file [CIF]
data_K5Sm(MoO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.254
_cell_length_b   7.889
_cell_length_c   9.838
_cell_angle_alpha   73.765
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   466.009
_cell_formula_units_Z   1
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  0.500  0.160  0.283  1.0
  K  K1  1  0.000  0.592  0.816  1.0
  K  K2  1  0.500  0.840  0.717  1.0
  K  K3  1  0.000  0.408  0.184  1.0
  K  K4  1  0.000  0.000  0.000  1.0
  Sm  Sm5  1  0.500  0.500  0.500  1.0
  Mo  Mo6  1  0.000  0.200  0.601  1.0
  Mo  Mo7  1  0.500  0.715  0.099  1.0
  Mo  Mo8  1  0.000  0.800  0.399  1.0
  Mo  Mo9  1  0.500  0.285  0.901  1.0
  O  O10  1  0.241  0.716  0.502  1.0
  O  O11  1  0.729  0.287  0.010  1.0
  O  O12  1  0.000  0.035  0.331  1.0
  O  O13  1  0.500  0.479  0.743  1.0
  O  O14  1  0.759  0.716  0.502  1.0
  O  O15  1  0.271  0.287  0.010  1.0
  O  O16  1  0.759  0.284  0.498  1.0
  O  O17  1  0.271  0.713  0.990  1.0
  O  O18  1  0.000  0.965  0.669  1.0
  O  O19  1  0.500  0.521  0.257  1.0
  O  O20  1  0.241  0.284  0.498  1.0
  O  O21  1  0.729  0.713  0.990  1.0
  O  O22  1  0.500  0.907  0.160  1.0
  O  O23  1  0.000  0.288  0.747  1.0
  O  O24  1  0.500  0.093  0.840  1.0
  O  O25  1  0.000  0.712  0.253  1.0
[/CIF]
.