The compound described by Mg(MoO2)2 is Spinel-like structured and crystallizes in the triclinic P1 space group. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to one O(1), one O(17), one O(3), and one O(4) atom to form MgO4 tetrahedra that share  a cornercorner with one Mg(6)O6 octahedra,  a cornercorner with one Mo(10)O6 octahedra,  a cornercorner with one Mo(8)O6 octahedra, corners with two equivalent Mg(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(4)O6 octahedra, and corners with three equivalent Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-61°. In the second Mg site, Mg(2) is bonded to one O(11), one O(12), one O(5), one O(6), one O(8), and one O(9) atom to form MgO6 octahedra that share corners with three equivalent Mo(9)O4 tetrahedra, corners with three equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(5)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(4)O6 octahedra,  an edgeedge with one Mo(5)O6 octahedra, and  an edgeedge with one Mo(7)O6 octahedra. In the third Mg site, Mg(3) is bonded to one O(1), one O(10), one O(12), one O(2), one O(3), and one O(8) atom to form MgO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mo(9)O4 tetrahedra,  a cornercorner with one Mo(12)O4 trigonal pyramid,  a cornercorner with one Mo(2)O4 trigonal pyramid,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with two equivalent Mo(4)O6 octahedra. In the fourth Mg site, Mg(4) is bonded to one O(13), one O(14), one O(15), one O(16), one O(19), and one O(20) atom to form MgO6 octahedra that share corners with three equivalent Mo(11)O4 tetrahedra, corners with three equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(5)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra,  an edgeedge with one Mo(10)O6 octahedra,  an edgeedge with one Mo(5)O6 octahedra,  an edgeedge with one Mo(7)O6 octahedra, and  an edgeedge with one Mo(8)O6 octahedra. In the fifth Mg site, Mg(5) is bonded to one O(15), one O(18), one O(20), one O(5), one O(7), and one O(9) atom to form MgO6 octahedra that share  a cornercorner with one Mo(9)O4 tetrahedra, corners with two equivalent Mo(11)O4 tetrahedra,  a cornercorner with one Mo(6)O4 trigonal pyramid, corners with two equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mo(5)O6 octahedra, and edges with two equivalent Mo(7)O6 octahedra. In the sixth Mg site, Mg(6) is bonded to one O(13), one O(16), one O(17), one O(22), one O(23), and one O(24) atom to form MgO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Mo(11)O4 tetrahedra, corners with two equivalent Mo(12)O4 trigonal pyramids, corners with two equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mo(10)O6 octahedra, and edges with two equivalent Mo(8)O6 octahedra. There are twelve inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(4), and one O(6) atom to form MoO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mo(9)O4 tetrahedra,  a cornercorner with one Mo(12)O4 trigonal pyramid,  a cornercorner with one Mo(2)O4 trigonal pyramid,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, and edges with two equivalent Mo(4)O6 octahedra. In the second Mo site, Mo(2) is bonded to one O(11), one O(2), one O(5), and one O(9) atom to form distorted MoO4 trigonal pyramids that share  a cornercorner with one Mg(3)O6 octahedra,  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra, corners with two equivalent Mg(5)O6 octahedra, corners with two equivalent Mo(5)O6 octahedra, corners with two equivalent Mo(7)O6 octahedra, and corners with three equivalent Mg(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-67°. In the third Mo site, Mo(3) is bonded to one O(1), one O(21), one O(22), one O(24), one O(3), and one O(4) atom to form MoO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mo(12)O4 trigonal pyramids,  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(10)O6 octahedra,  an edgeedge with one Mo(4)O6 octahedra, and  an edgeedge with one Mo(8)O6 octahedra. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form MoO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mo(9)O4 tetrahedra,  a cornercorner with one Mo(12)O4 trigonal pyramid,  a cornercorner with one Mo(2)O4 trigonal pyramid,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, and edges with two equivalent Mo(1)O6 octahedra. In the fifth Mo site, Mo(5) is bonded to one O(11), one O(14), one O(18), one O(20), one O(5), and one O(7) atom to form MoO6 octahedra that share  a cornercorner with one Mo(9)O4 tetrahedra, corners with two equivalent Mo(11)O4 tetrahedra,  a cornercorner with one Mo(6)O4 trigonal pyramid, corners with two equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mo(7)O6 octahedra. In the sixth Mo site, Mo(6) is bonded to one O(13), one O(16), one O(19), and one O(7) atom to form distorted MoO4 trigonal pyramids that share  a cornercorner with one Mg(5)O6 octahedra,  a cornercorner with one Mo(5)O6 octahedra,  a cornercorner with one Mo(7)O6 octahedra, corners with two equivalent Mg(6)O6 octahedra, corners with two equivalent Mo(10)O6 octahedra, corners with two equivalent Mo(8)O6 octahedra, and corners with three equivalent Mg(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-72°. In the seventh Mo site, Mo(7) is bonded to one O(11), one O(14), one O(15), one O(18), one O(7), and one O(9) atom to form MoO6 octahedra that share  a cornercorner with one Mo(9)O4 tetrahedra, corners with two equivalent Mo(11)O4 tetrahedra,  a cornercorner with one Mo(6)O4 trigonal pyramid, corners with two equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mo(5)O6 octahedra. In the eighth Mo site, Mo(8) is bonded to one O(13), one O(17), one O(19), one O(21), one O(23), and one O(24) atom to form MoO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Mo(11)O4 tetrahedra, corners with two equivalent Mo(12)O4 trigonal pyramids, corners with two equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(6)O6 octahedra, and edges with two equivalent Mo(10)O6 octahedra. In the ninth Mo site, Mo(9) is bonded to one O(12), one O(18), one O(6), and one O(8) atom to form MoO4 tetrahedra that share  a cornercorner with one Mg(5)O6 octahedra,  a cornercorner with one Mo(5)O6 octahedra,  a cornercorner with one Mo(7)O6 octahedra, corners with two equivalent Mg(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(4)O6 octahedra, and corners with three equivalent Mg(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-67°. In the tenth Mo site, Mo(10) is bonded to one O(16), one O(17), one O(19), one O(21), one O(22), and one O(23) atom to form MoO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Mo(11)O4 tetrahedra, corners with two equivalent Mo(12)O4 trigonal pyramids, corners with two equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(6)O6 octahedra, and edges with two equivalent Mo(8)O6 octahedra. In the eleventh Mo site, Mo(11) is bonded to one O(14), one O(15), one O(20), and one O(23) atom to form MoO4 tetrahedra that share  a cornercorner with one Mg(6)O6 octahedra,  a cornercorner with one Mo(10)O6 octahedra,  a cornercorner with one Mo(8)O6 octahedra, corners with two equivalent Mg(5)O6 octahedra, corners with two equivalent Mo(5)O6 octahedra, corners with two equivalent Mo(7)O6 octahedra, and corners with three equivalent Mg(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-70°. In the twelfth Mo site, Mo(12) is bonded to one O(10), one O(21), one O(22), and one O(24) atom to form distorted MoO4 trigonal pyramids that share  a cornercorner with one Mg(3)O6 octahedra,  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra, corners with two equivalent Mg(6)O6 octahedra, corners with two equivalent Mo(10)O6 octahedra, corners with two equivalent Mo(8)O6 octahedra, and corners with three equivalent Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-72°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mg(3), one Mo(1), and one Mo(3) atom. In the second O site, O(2) is bonded to one Mg(3), one Mo(1), one Mo(2), and one Mo(4) atom to form distorted OMgMo3 trigonal pyramids that share corners with two equivalent O(8)Mg2Mo2 trigonal pyramids and corners with three equivalent O(10)MgMo3 trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mg(3), one Mo(3), and one Mo(4) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mo(1), one Mo(3), and one Mo(4) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mg(5), one Mo(2), and one Mo(5) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Mg(2), one Mo(1), one Mo(4), and one Mo(9) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mg(5), one Mo(5), one Mo(6), and one Mo(7) atom. In the eighth O site, O(8) is bonded to one Mg(2), one Mg(3), one Mo(4), and one Mo(9) atom to form a mixture of distorted corner and edge-sharing OMg2Mo2 trigonal pyramids. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mg(5), one Mo(2), and one Mo(7) atom. In the tenth O site, O(10) is bonded to one Mg(3), one Mo(1), one Mo(12), and one Mo(4) atom to form distorted OMgMo3 trigonal pyramids that share  a cornercorner with one O(22)MgMo3 tetrahedra,  a cornercorner with one O(24)MgMo3 tetrahedra,  a cornercorner with one O(21)Mo4 trigonal pyramid, corners with three equivalent O(2)MgMo3 trigonal pyramids, and  an edgeedge with one O(8)Mg2Mo2 trigonal pyramid. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mo(2), one Mo(5), and one Mo(7) atom. In the twelfth O site, O(12) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mg(3), one Mo(1), and one Mo(9) atom. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(6), one Mo(6), and one Mo(8) atom. In the fourteenth O site, O(14) is bonded in a distorted rectangular see-saw-like geometry to one Mg(4), one Mo(11), one Mo(5), and one Mo(7) atom. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(5), one Mo(11), and one Mo(7) atom. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(6), one Mo(10), and one Mo(6) atom. In the seventeenth O site, O(17) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mg(6), one Mo(10), and one Mo(8) atom. In the eighteenth O site, O(18) is bonded in a rectangular see-saw-like geometry to one Mg(5), one Mo(5), one Mo(7), and one Mo(9) atom. In the nineteenth O site, O(19) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mo(10), one Mo(6), and one Mo(8) atom. In the twentieth O site, O(20) is bonded in a distorted rectangular see-saw-like geometry to one Mg(4), one Mg(5), one Mo(11), and one Mo(5) atom. In the twenty-first O site, O(21) is bonded to one Mo(10), one Mo(12), one Mo(3), and one Mo(8) atom to form a mixture of corner and edge-sharing OMo4 trigonal pyramids. In the twenty-second O site, O(22) is bonded to one Mg(6), one Mo(10), one Mo(12), and one Mo(3) atom to form distorted OMgMo3 tetrahedra that share  a cornercorner with one O(24)MgMo3 tetrahedra,  a cornercorner with one O(10)MgMo3 trigonal pyramid,  a cornercorner with one O(21)Mo4 trigonal pyramid,  an edgeedge with one O(24)MgMo3 tetrahedra, and  an edgeedge with one O(21)Mo4 trigonal pyramid. In the twenty-third O site, O(23) is bonded in a rectangular see-saw-like geometry to one Mg(6), one Mo(10), one Mo(11), and one Mo(8) atom. In the twenty-fourth O site, O(24) is bonded to one Mg(6), one Mo(12), one Mo(3), and one Mo(8) atom to form distorted OMgMo3 tetrahedra that share  a cornercorner with one O(22)MgMo3 tetrahedra,  a cornercorner with one O(10)MgMo3 trigonal pyramid,  a cornercorner with one O(21)Mo4 trigonal pyramid,  an edgeedge with one O(22)MgMo3 tetrahedra, and  an edgeedge with one O(21)Mo4 trigonal pyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(MoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.263
_cell_length_b   6.429
_cell_length_c   15.231
_cell_angle_alpha   89.304
_cell_angle_beta   88.705
_cell_angle_gamma   61.196
_symmetry_Int_Tables_number   1
_cell_volume   537.314
_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
  Mg  Mg0  1  0.179  0.168  0.042  1.0
  Mg  Mg1  1  0.822  0.838  0.332  1.0
  Mg  Mg2  1  0.160  0.668  0.166  1.0
  Mg  Mg3  1  0.172  0.163  0.663  1.0
  Mg  Mg4  1  0.498  0.003  0.503  1.0
  Mg  Mg5  1  0.849  0.324  0.833  1.0
  Mo  Mo6  1  0.662  0.164  0.169  1.0
  Mo  Mo7  1  0.501  0.498  0.394  1.0
  Mo  Mo8  1  0.505  0.503  0.006  1.0
  Mo  Mo9  1  0.658  0.673  0.166  1.0
  Mo  Mo10  1  0.994  0.506  0.503  1.0
  Mo  Mo11  1  0.849  0.823  0.743  1.0
  Mo  Mo12  1  0.991  0.002  0.499  1.0
  Mo  Mo13  1  0.346  0.824  0.833  1.0
  Mo  Mo14  1  0.125  0.189  0.290  1.0
  Mo  Mo15  1  0.344  0.323  0.831  1.0
  Mo  Mo16  1  0.493  0.513  0.615  1.0
  Mo  Mo17  1  0.827  0.849  0.936  1.0
  O  O18  1  0.339  0.348  0.091  1.0
  O  O19  1  0.489  0.502  0.240  1.0
  O  O20  1  0.346  0.821  0.091  1.0
  O  O21  1  0.821  0.352  0.092  1.0
  O  O22  1  0.672  0.685  0.419  1.0
  O  O23  1  0.525  0.964  0.247  1.0
  O  O24  1  0.822  0.834  0.570  1.0
  O  O25  1  0.961  0.539  0.246  1.0
  O  O26  1  0.673  0.144  0.414  1.0
  O  O27  1  0.831  0.838  0.093  1.0
  O  O28  1  0.133  0.685  0.413  1.0
  O  O29  1  0.990  0.982  0.246  1.0
  O  O30  1  0.023  0.012  0.753  1.0
  O  O31  1  0.872  0.300  0.583  1.0
  O  O32  1  0.301  0.875  0.578  1.0
  O  O33  1  0.023  0.466  0.750  1.0
  O  O34  1  0.179  0.150  0.909  1.0
  O  O35  1  0.172  0.176  0.423  1.0
  O  O36  1  0.481  0.007  0.745  1.0
  O  O37  1  0.322  0.320  0.577  1.0
  O  O38  1  0.213  0.627  0.914  1.0
  O  O39  1  0.648  0.215  0.918  1.0
  O  O40  1  0.517  0.495  0.756  1.0
  O  O41  1  0.671  0.629  0.910  1.0
[/CIF]
.
The compound described by Mg(MoO2)2 is Spinel-like structured and crystallizes in the triclinic P1 space group. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to one O(1), one O(17), one O(3), and one O(4) atom to form MgO4 tetrahedra that share  a cornercorner with one Mg(6)O6 octahedra,  a cornercorner with one Mo(10)O6 octahedra,  a cornercorner with one Mo(8)O6 octahedra, corners with two equivalent Mg(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(4)O6 octahedra, and corners with three equivalent Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-61°. In the second Mg site, Mg(2) is bonded to one O(11), one O(12), one O(5), one O(6), one O(8), and one O(9) atom to form MgO6 octahedra that share corners with three equivalent Mo(9)O4 tetrahedra, corners with three equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(5)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(4)O6 octahedra,  an edgeedge with one Mo(5)O6 octahedra, and  an edgeedge with one Mo(7)O6 octahedra. In the third Mg site, Mg(3) is bonded to one O(1), one O(10), one O(12), one O(2), one O(3), and one O(8) atom to form MgO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mo(9)O4 tetrahedra,  a cornercorner with one Mo(12)O4 trigonal pyramid,  a cornercorner with one Mo(2)O4 trigonal pyramid,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with two equivalent Mo(4)O6 octahedra. In the fourth Mg site, Mg(4) is bonded to one O(13), one O(14), one O(15), one O(16), one O(19), and one O(20) atom to form MgO6 octahedra that share corners with three equivalent Mo(11)O4 tetrahedra, corners with three equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(5)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra,  an edgeedge with one Mo(10)O6 octahedra,  an edgeedge with one Mo(5)O6 octahedra,  an edgeedge with one Mo(7)O6 octahedra, and  an edgeedge with one Mo(8)O6 octahedra. In the fifth Mg site, Mg(5) is bonded to one O(15), one O(18), one O(20), one O(5), one O(7), and one O(9) atom to form MgO6 octahedra that share  a cornercorner with one Mo(9)O4 tetrahedra, corners with two equivalent Mo(11)O4 tetrahedra,  a cornercorner with one Mo(6)O4 trigonal pyramid, corners with two equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mo(5)O6 octahedra, and edges with two equivalent Mo(7)O6 octahedra. In the sixth Mg site, Mg(6) is bonded to one O(13), one O(16), one O(17), one O(22), one O(23), and one O(24) atom to form MgO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Mo(11)O4 tetrahedra, corners with two equivalent Mo(12)O4 trigonal pyramids, corners with two equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mo(10)O6 octahedra, and edges with two equivalent Mo(8)O6 octahedra. There are twelve inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(4), and one O(6) atom to form MoO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mo(9)O4 tetrahedra,  a cornercorner with one Mo(12)O4 trigonal pyramid,  a cornercorner with one Mo(2)O4 trigonal pyramid,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, and edges with two equivalent Mo(4)O6 octahedra. In the second Mo site, Mo(2) is bonded to one O(11), one O(2), one O(5), and one O(9) atom to form distorted MoO4 trigonal pyramids that share  a cornercorner with one Mg(3)O6 octahedra,  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra, corners with two equivalent Mg(5)O6 octahedra, corners with two equivalent Mo(5)O6 octahedra, corners with two equivalent Mo(7)O6 octahedra, and corners with three equivalent Mg(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-67°. In the third Mo site, Mo(3) is bonded to one O(1), one O(21), one O(22), one O(24), one O(3), and one O(4) atom to form MoO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mo(12)O4 trigonal pyramids,  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(10)O6 octahedra,  an edgeedge with one Mo(4)O6 octahedra, and  an edgeedge with one Mo(8)O6 octahedra. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form MoO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mo(9)O4 tetrahedra,  a cornercorner with one Mo(12)O4 trigonal pyramid,  a cornercorner with one Mo(2)O4 trigonal pyramid,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, and edges with two equivalent Mo(1)O6 octahedra. In the fifth Mo site, Mo(5) is bonded to one O(11), one O(14), one O(18), one O(20), one O(5), and one O(7) atom to form MoO6 octahedra that share  a cornercorner with one Mo(9)O4 tetrahedra, corners with two equivalent Mo(11)O4 tetrahedra,  a cornercorner with one Mo(6)O4 trigonal pyramid, corners with two equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mo(7)O6 octahedra. In the sixth Mo site, Mo(6) is bonded to one O(13), one O(16), one O(19), and one O(7) atom to form distorted MoO4 trigonal pyramids that share  a cornercorner with one Mg(5)O6 octahedra,  a cornercorner with one Mo(5)O6 octahedra,  a cornercorner with one Mo(7)O6 octahedra, corners with two equivalent Mg(6)O6 octahedra, corners with two equivalent Mo(10)O6 octahedra, corners with two equivalent Mo(8)O6 octahedra, and corners with three equivalent Mg(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-72°. In the seventh Mo site, Mo(7) is bonded to one O(11), one O(14), one O(15), one O(18), one O(7), and one O(9) atom to form MoO6 octahedra that share  a cornercorner with one Mo(9)O4 tetrahedra, corners with two equivalent Mo(11)O4 tetrahedra,  a cornercorner with one Mo(6)O4 trigonal pyramid, corners with two equivalent Mo(2)O4 trigonal pyramids,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mo(5)O6 octahedra. In the eighth Mo site, Mo(8) is bonded to one O(13), one O(17), one O(19), one O(21), one O(23), and one O(24) atom to form MoO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Mo(11)O4 tetrahedra, corners with two equivalent Mo(12)O4 trigonal pyramids, corners with two equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(6)O6 octahedra, and edges with two equivalent Mo(10)O6 octahedra. In the ninth Mo site, Mo(9) is bonded to one O(12), one O(18), one O(6), and one O(8) atom to form MoO4 tetrahedra that share  a cornercorner with one Mg(5)O6 octahedra,  a cornercorner with one Mo(5)O6 octahedra,  a cornercorner with one Mo(7)O6 octahedra, corners with two equivalent Mg(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(4)O6 octahedra, and corners with three equivalent Mg(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-67°. In the tenth Mo site, Mo(10) is bonded to one O(16), one O(17), one O(19), one O(21), one O(22), and one O(23) atom to form MoO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Mo(11)O4 tetrahedra, corners with two equivalent Mo(12)O4 trigonal pyramids, corners with two equivalent Mo(6)O4 trigonal pyramids,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, edges with two equivalent Mg(6)O6 octahedra, and edges with two equivalent Mo(8)O6 octahedra. In the eleventh Mo site, Mo(11) is bonded to one O(14), one O(15), one O(20), and one O(23) atom to form MoO4 tetrahedra that share  a cornercorner with one Mg(6)O6 octahedra,  a cornercorner with one Mo(10)O6 octahedra,  a cornercorner with one Mo(8)O6 octahedra, corners with two equivalent Mg(5)O6 octahedra, corners with two equivalent Mo(5)O6 octahedra, corners with two equivalent Mo(7)O6 octahedra, and corners with three equivalent Mg(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-70°. In the twelfth Mo site, Mo(12) is bonded to one O(10), one O(21), one O(22), and one O(24) atom to form distorted MoO4 trigonal pyramids that share  a cornercorner with one Mg(3)O6 octahedra,  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra, corners with two equivalent Mg(6)O6 octahedra, corners with two equivalent Mo(10)O6 octahedra, corners with two equivalent Mo(8)O6 octahedra, and corners with three equivalent Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-72°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mg(3), one Mo(1), and one Mo(3) atom. In the second O site, O(2) is bonded to one Mg(3), one Mo(1), one Mo(2), and one Mo(4) atom to form distorted OMgMo3 trigonal pyramids that share corners with two equivalent O(8)Mg2Mo2 trigonal pyramids and corners with three equivalent O(10)MgMo3 trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mg(3), one Mo(3), and one Mo(4) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mo(1), one Mo(3), and one Mo(4) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mg(5), one Mo(2), and one Mo(5) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Mg(2), one Mo(1), one Mo(4), and one Mo(9) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mg(5), one Mo(5), one Mo(6), and one Mo(7) atom. In the eighth O site, O(8) is bonded to one Mg(2), one Mg(3), one Mo(4), and one Mo(9) atom to form a mixture of distorted corner and edge-sharing OMg2Mo2 trigonal pyramids. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mg(5), one Mo(2), and one Mo(7) atom. In the tenth O site, O(10) is bonded to one Mg(3), one Mo(1), one Mo(12), and one Mo(4) atom to form distorted OMgMo3 trigonal pyramids that share  a cornercorner with one O(22)MgMo3 tetrahedra,  a cornercorner with one O(24)MgMo3 tetrahedra,  a cornercorner with one O(21)Mo4 trigonal pyramid, corners with three equivalent O(2)MgMo3 trigonal pyramids, and  an edgeedge with one O(8)Mg2Mo2 trigonal pyramid. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mo(2), one Mo(5), and one Mo(7) atom. In the twelfth O site, O(12) is bonded in a rectangular see-saw-like geometry to one Mg(2), one Mg(3), one Mo(1), and one Mo(9) atom. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(6), one Mo(6), and one Mo(8) atom. In the fourteenth O site, O(14) is bonded in a distorted rectangular see-saw-like geometry to one Mg(4), one Mo(11), one Mo(5), and one Mo(7) atom. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(5), one Mo(11), and one Mo(7) atom. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(6), one Mo(10), and one Mo(6) atom. In the seventeenth O site, O(17) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mg(6), one Mo(10), and one Mo(8) atom. In the eighteenth O site, O(18) is bonded in a rectangular see-saw-like geometry to one Mg(5), one Mo(5), one Mo(7), and one Mo(9) atom. In the nineteenth O site, O(19) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mo(10), one Mo(6), and one Mo(8) atom. In the twentieth O site, O(20) is bonded in a distorted rectangular see-saw-like geometry to one Mg(4), one Mg(5), one Mo(11), and one Mo(5) atom. In the twenty-first O site, O(21) is bonded to one Mo(10), one Mo(12), one Mo(3), and one Mo(8) atom to form a mixture of corner and edge-sharing OMo4 trigonal pyramids. In the twenty-second O site, O(22) is bonded to one Mg(6), one Mo(10), one Mo(12), and one Mo(3) atom to form distorted OMgMo3 tetrahedra that share  a cornercorner with one O(24)MgMo3 tetrahedra,  a cornercorner with one O(10)MgMo3 trigonal pyramid,  a cornercorner with one O(21)Mo4 trigonal pyramid,  an edgeedge with one O(24)MgMo3 tetrahedra, and  an edgeedge with one O(21)Mo4 trigonal pyramid. In the twenty-third O site, O(23) is bonded in a rectangular see-saw-like geometry to one Mg(6), one Mo(10), one Mo(11), and one Mo(8) atom. In the twenty-fourth O site, O(24) is bonded to one Mg(6), one Mo(12), one Mo(3), and one Mo(8) atom to form distorted OMgMo3 tetrahedra that share  a cornercorner with one O(22)MgMo3 tetrahedra,  a cornercorner with one O(10)MgMo3 trigonal pyramid,  a cornercorner with one O(21)Mo4 trigonal pyramid,  an edgeedge with one O(22)MgMo3 tetrahedra, and  an edgeedge with one O(21)Mo4 trigonal pyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(MoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.263
_cell_length_b   6.429
_cell_length_c   15.231
_cell_angle_alpha   89.304
_cell_angle_beta   88.705
_cell_angle_gamma   61.196
_symmetry_Int_Tables_number   1
_cell_volume   537.314
_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
  Mg  Mg0  1  0.179  0.168  0.042  1.0
  Mg  Mg1  1  0.822  0.838  0.332  1.0
  Mg  Mg2  1  0.160  0.668  0.166  1.0
  Mg  Mg3  1  0.172  0.163  0.663  1.0
  Mg  Mg4  1  0.498  0.003  0.503  1.0
  Mg  Mg5  1  0.849  0.324  0.833  1.0
  Mo  Mo6  1  0.662  0.164  0.169  1.0
  Mo  Mo7  1  0.501  0.498  0.394  1.0
  Mo  Mo8  1  0.505  0.503  0.006  1.0
  Mo  Mo9  1  0.658  0.673  0.166  1.0
  Mo  Mo10  1  0.994  0.506  0.503  1.0
  Mo  Mo11  1  0.849  0.823  0.743  1.0
  Mo  Mo12  1  0.991  0.002  0.499  1.0
  Mo  Mo13  1  0.346  0.824  0.833  1.0
  Mo  Mo14  1  0.125  0.189  0.290  1.0
  Mo  Mo15  1  0.344  0.323  0.831  1.0
  Mo  Mo16  1  0.493  0.513  0.615  1.0
  Mo  Mo17  1  0.827  0.849  0.936  1.0
  O  O18  1  0.339  0.348  0.091  1.0
  O  O19  1  0.489  0.502  0.240  1.0
  O  O20  1  0.346  0.821  0.091  1.0
  O  O21  1  0.821  0.352  0.092  1.0
  O  O22  1  0.672  0.685  0.419  1.0
  O  O23  1  0.525  0.964  0.247  1.0
  O  O24  1  0.822  0.834  0.570  1.0
  O  O25  1  0.961  0.539  0.246  1.0
  O  O26  1  0.673  0.144  0.414  1.0
  O  O27  1  0.831  0.838  0.093  1.0
  O  O28  1  0.133  0.685  0.413  1.0
  O  O29  1  0.990  0.982  0.246  1.0
  O  O30  1  0.023  0.012  0.753  1.0
  O  O31  1  0.872  0.300  0.583  1.0
  O  O32  1  0.301  0.875  0.578  1.0
  O  O33  1  0.023  0.466  0.750  1.0
  O  O34  1  0.179  0.150  0.909  1.0
  O  O35  1  0.172  0.176  0.423  1.0
  O  O36  1  0.481  0.007  0.745  1.0
  O  O37  1  0.322  0.320  0.577  1.0
  O  O38  1  0.213  0.627  0.914  1.0
  O  O39  1  0.648  0.215  0.918  1.0
  O  O40  1  0.517  0.495  0.756  1.0
  O  O41  1  0.671  0.629  0.910  1.0
[/CIF]
.