The structure described by Mo3Os2 is beta Uranium-derived structured and crystallizes in the orthorhombic Cmm2 space group. There are seven inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 15-coordinate geometry to one Mo(1), one Mo(6), two equivalent Mo(3), two equivalent Mo(5), two equivalent Mo(7), one Os(5), two equivalent Os(2), and four equivalent Os(4) atoms. In the second Mo site, Mo(2) is bonded in a 15-coordinate geometry to one Mo(2), one Mo(5), one Mo(7), two equivalent Mo(4), two equivalent Mo(6), two equivalent Os(1), two equivalent Os(5), and four equivalent Os(3) atoms. In the third Mo site, Mo(3) is bonded in a 14-coordinate geometry to one Mo(1), one Mo(3), one Mo(5), one Mo(6), one Mo(7), four equivalent Mo(4), one Os(5), two equivalent Os(3), and two equivalent Os(4) atoms. In the fourth Mo site, Mo(4) is bonded in a 14-coordinate geometry to one Mo(2), one Mo(4), one Mo(5), one Mo(6), one Mo(7), four equivalent Mo(3), one Os(5), two equivalent Os(3), and two equivalent Os(4) atoms. In the fifth Mo site, Mo(5) is bonded in a 7-coordinate geometry to one Mo(2), two equivalent Mo(1), two equivalent Mo(3), two equivalent Mo(4), two equivalent Mo(7), one Os(2), two equivalent Os(3), and two equivalent Os(4) atoms. In the sixth Mo site, Mo(6) is bonded in a 7-coordinate geometry to one Mo(1), two equivalent Mo(2), two equivalent Mo(3), two equivalent Mo(4), one Os(1), two equivalent Os(3), two equivalent Os(4), and two equivalent Os(5) atoms. In the seventh Mo site, Mo(7) is bonded in a 7-coordinate geometry to one Mo(2), two equivalent Mo(1), two equivalent Mo(3), two equivalent Mo(4), two equivalent Mo(5), one Os(2), two equivalent Os(3), and two equivalent Os(4) atoms. There are five inequivalent Os sites. In the first Os site, Os(1) is bonded to two equivalent Mo(6), four equivalent Mo(2), two equivalent Os(5), and four equivalent Os(3) atoms to form OsMo6Os6 cuboctahedra that share corners with eight equivalent Os(3)Mo9Os3 cuboctahedra, corners with eight equivalent Os(4)Mo9Os3 cuboctahedra, edges with two equivalent Os(1)Mo6Os6 cuboctahedra, and faces with four equivalent Os(3)Mo9Os3 cuboctahedra. In the second Os site, Os(2) is bonded to two equivalent Mo(5), two equivalent Mo(7), four equivalent Mo(1), and four equivalent Os(4) atoms to form OsMo8Os4 cuboctahedra that share corners with eight equivalent Os(3)Mo9Os3 cuboctahedra, corners with eight equivalent Os(4)Mo9Os3 cuboctahedra, edges with two equivalent Os(2)Mo8Os4 cuboctahedra, and faces with four equivalent Os(4)Mo9Os3 cuboctahedra. In the third Os site, Os(3) is bonded to one Mo(5), one Mo(6), one Mo(7), two equivalent Mo(2), two equivalent Mo(3), two equivalent Mo(4), one Os(1), one Os(3), and one Os(5) atom to form OsMo9Os3 cuboctahedra that share corners with two equivalent Os(1)Mo6Os6 cuboctahedra, corners with two equivalent Os(2)Mo8Os4 cuboctahedra, corners with three equivalent Os(3)Mo9Os3 cuboctahedra, corners with four equivalent Os(4)Mo9Os3 cuboctahedra, edges with three equivalent Os(3)Mo9Os3 cuboctahedra,  a faceface with one Os(1)Mo6Os6 cuboctahedra, faces with two equivalent Os(3)Mo9Os3 cuboctahedra, and faces with four equivalent Os(4)Mo9Os3 cuboctahedra. In the fourth Os site, Os(4) is bonded to one Mo(5), one Mo(6), one Mo(7), two equivalent Mo(1), two equivalent Mo(3), two equivalent Mo(4), one Os(2), one Os(4), and one Os(5) atom to form OsMo9Os3 cuboctahedra that share corners with two equivalent Os(1)Mo6Os6 cuboctahedra, corners with two equivalent Os(2)Mo8Os4 cuboctahedra, corners with three equivalent Os(4)Mo9Os3 cuboctahedra, corners with four equivalent Os(3)Mo9Os3 cuboctahedra, edges with three equivalent Os(4)Mo9Os3 cuboctahedra,  a faceface with one Os(2)Mo8Os4 cuboctahedra, faces with two equivalent Os(4)Mo9Os3 cuboctahedra, and faces with four equivalent Os(3)Mo9Os3 cuboctahedra. In the fifth Os site, Os(5) is bonded in a distorted linear geometry to one Mo(1), two equivalent Mo(2), two equivalent Mo(3), two equivalent Mo(4), two equivalent Mo(6), one Os(1), two equivalent Os(3), and two equivalent Os(4) atoms. is represented by the CIF file [CIF]
data_Mo3Os2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.978
_cell_length_b   9.674
_cell_length_c   9.674
_cell_angle_alpha   90.123
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   465.899
_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
  Mo  Mo0  1  0.499  0.104  0.896  1.0
  Mo  Mo1  1  0.499  0.896  0.104  1.0
  Mo  Mo2  1  0.999  0.397  0.397  1.0
  Mo  Mo3  1  0.999  0.603  0.603  1.0
  Mo  Mo4  1  0.500  0.369  0.962  1.0
  Mo  Mo5  1  0.500  0.631  0.038  1.0
  Mo  Mo6  1  0.001  0.132  0.465  1.0
  Mo  Mo7  1  0.001  0.868  0.535  1.0
  Mo  Mo8  1  0.500  0.962  0.369  1.0
  Mo  Mo9  1  0.500  0.038  0.631  1.0
  Mo  Mo10  1  0.001  0.465  0.132  1.0
  Mo  Mo11  1  0.001  0.535  0.868  1.0
  Mo  Mo12  1  0.748  0.181  0.181  1.0
  Mo  Mo13  1  0.748  0.819  0.819  1.0
  Mo  Mo14  1  0.751  0.681  0.319  1.0
  Mo  Mo15  1  0.751  0.319  0.681  1.0
  Mo  Mo16  1  0.250  0.818  0.818  1.0
  Mo  Mo17  1  0.250  0.182  0.182  1.0
  Os  Os18  1  0.499  0.500  0.500  1.0
  Os  Os19  1  0.002  0.000  0.000  1.0
  Os  Os20  1  0.498  0.434  0.236  1.0
  Os  Os21  1  0.498  0.566  0.764  1.0
  Os  Os22  1  0.002  0.068  0.736  1.0
  Os  Os23  1  0.002  0.932  0.264  1.0
  Os  Os24  1  0.498  0.236  0.434  1.0
  Os  Os25  1  0.498  0.764  0.566  1.0
  Os  Os26  1  0.002  0.736  0.068  1.0
  Os  Os27  1  0.002  0.264  0.932  1.0
  Os  Os28  1  0.250  0.319  0.681  1.0
  Os  Os29  1  0.250  0.681  0.319  1.0
[/CIF]
.
The structure described by Mo3Os2 is beta Uranium-derived structured and crystallizes in the orthorhombic Cmm2 space group. There are seven inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 15-coordinate geometry to one Mo(1), one Mo(6), two equivalent Mo(3), two equivalent Mo(5), two equivalent Mo(7), one Os(5), two equivalent Os(2), and four equivalent Os(4) atoms. In the second Mo site, Mo(2) is bonded in a 15-coordinate geometry to one Mo(2), one Mo(5), one Mo(7), two equivalent Mo(4), two equivalent Mo(6), two equivalent Os(1), two equivalent Os(5), and four equivalent Os(3) atoms. In the third Mo site, Mo(3) is bonded in a 14-coordinate geometry to one Mo(1), one Mo(3), one Mo(5), one Mo(6), one Mo(7), four equivalent Mo(4), one Os(5), two equivalent Os(3), and two equivalent Os(4) atoms. In the fourth Mo site, Mo(4) is bonded in a 14-coordinate geometry to one Mo(2), one Mo(4), one Mo(5), one Mo(6), one Mo(7), four equivalent Mo(3), one Os(5), two equivalent Os(3), and two equivalent Os(4) atoms. In the fifth Mo site, Mo(5) is bonded in a 7-coordinate geometry to one Mo(2), two equivalent Mo(1), two equivalent Mo(3), two equivalent Mo(4), two equivalent Mo(7), one Os(2), two equivalent Os(3), and two equivalent Os(4) atoms. In the sixth Mo site, Mo(6) is bonded in a 7-coordinate geometry to one Mo(1), two equivalent Mo(2), two equivalent Mo(3), two equivalent Mo(4), one Os(1), two equivalent Os(3), two equivalent Os(4), and two equivalent Os(5) atoms. In the seventh Mo site, Mo(7) is bonded in a 7-coordinate geometry to one Mo(2), two equivalent Mo(1), two equivalent Mo(3), two equivalent Mo(4), two equivalent Mo(5), one Os(2), two equivalent Os(3), and two equivalent Os(4) atoms. There are five inequivalent Os sites. In the first Os site, Os(1) is bonded to two equivalent Mo(6), four equivalent Mo(2), two equivalent Os(5), and four equivalent Os(3) atoms to form OsMo6Os6 cuboctahedra that share corners with eight equivalent Os(3)Mo9Os3 cuboctahedra, corners with eight equivalent Os(4)Mo9Os3 cuboctahedra, edges with two equivalent Os(1)Mo6Os6 cuboctahedra, and faces with four equivalent Os(3)Mo9Os3 cuboctahedra. In the second Os site, Os(2) is bonded to two equivalent Mo(5), two equivalent Mo(7), four equivalent Mo(1), and four equivalent Os(4) atoms to form OsMo8Os4 cuboctahedra that share corners with eight equivalent Os(3)Mo9Os3 cuboctahedra, corners with eight equivalent Os(4)Mo9Os3 cuboctahedra, edges with two equivalent Os(2)Mo8Os4 cuboctahedra, and faces with four equivalent Os(4)Mo9Os3 cuboctahedra. In the third Os site, Os(3) is bonded to one Mo(5), one Mo(6), one Mo(7), two equivalent Mo(2), two equivalent Mo(3), two equivalent Mo(4), one Os(1), one Os(3), and one Os(5) atom to form OsMo9Os3 cuboctahedra that share corners with two equivalent Os(1)Mo6Os6 cuboctahedra, corners with two equivalent Os(2)Mo8Os4 cuboctahedra, corners with three equivalent Os(3)Mo9Os3 cuboctahedra, corners with four equivalent Os(4)Mo9Os3 cuboctahedra, edges with three equivalent Os(3)Mo9Os3 cuboctahedra,  a faceface with one Os(1)Mo6Os6 cuboctahedra, faces with two equivalent Os(3)Mo9Os3 cuboctahedra, and faces with four equivalent Os(4)Mo9Os3 cuboctahedra. In the fourth Os site, Os(4) is bonded to one Mo(5), one Mo(6), one Mo(7), two equivalent Mo(1), two equivalent Mo(3), two equivalent Mo(4), one Os(2), one Os(4), and one Os(5) atom to form OsMo9Os3 cuboctahedra that share corners with two equivalent Os(1)Mo6Os6 cuboctahedra, corners with two equivalent Os(2)Mo8Os4 cuboctahedra, corners with three equivalent Os(4)Mo9Os3 cuboctahedra, corners with four equivalent Os(3)Mo9Os3 cuboctahedra, edges with three equivalent Os(4)Mo9Os3 cuboctahedra,  a faceface with one Os(2)Mo8Os4 cuboctahedra, faces with two equivalent Os(4)Mo9Os3 cuboctahedra, and faces with four equivalent Os(3)Mo9Os3 cuboctahedra. In the fifth Os site, Os(5) is bonded in a distorted linear geometry to one Mo(1), two equivalent Mo(2), two equivalent Mo(3), two equivalent Mo(4), two equivalent Mo(6), one Os(1), two equivalent Os(3), and two equivalent Os(4) atoms. is represented by the CIF file [CIF]
data_Mo3Os2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.978
_cell_length_b   9.674
_cell_length_c   9.674
_cell_angle_alpha   90.123
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   465.899
_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
  Mo  Mo0  1  0.499  0.104  0.896  1.0
  Mo  Mo1  1  0.499  0.896  0.104  1.0
  Mo  Mo2  1  0.999  0.397  0.397  1.0
  Mo  Mo3  1  0.999  0.603  0.603  1.0
  Mo  Mo4  1  0.500  0.369  0.962  1.0
  Mo  Mo5  1  0.500  0.631  0.038  1.0
  Mo  Mo6  1  0.001  0.132  0.465  1.0
  Mo  Mo7  1  0.001  0.868  0.535  1.0
  Mo  Mo8  1  0.500  0.962  0.369  1.0
  Mo  Mo9  1  0.500  0.038  0.631  1.0
  Mo  Mo10  1  0.001  0.465  0.132  1.0
  Mo  Mo11  1  0.001  0.535  0.868  1.0
  Mo  Mo12  1  0.748  0.181  0.181  1.0
  Mo  Mo13  1  0.748  0.819  0.819  1.0
  Mo  Mo14  1  0.751  0.681  0.319  1.0
  Mo  Mo15  1  0.751  0.319  0.681  1.0
  Mo  Mo16  1  0.250  0.818  0.818  1.0
  Mo  Mo17  1  0.250  0.182  0.182  1.0
  Os  Os18  1  0.499  0.500  0.500  1.0
  Os  Os19  1  0.002  0.000  0.000  1.0
  Os  Os20  1  0.498  0.434  0.236  1.0
  Os  Os21  1  0.498  0.566  0.764  1.0
  Os  Os22  1  0.002  0.068  0.736  1.0
  Os  Os23  1  0.002  0.932  0.264  1.0
  Os  Os24  1  0.498  0.236  0.434  1.0
  Os  Os25  1  0.498  0.764  0.566  1.0
  Os  Os26  1  0.002  0.736  0.068  1.0
  Os  Os27  1  0.002  0.264  0.932  1.0
  Os  Os28  1  0.250  0.319  0.681  1.0
  Os  Os29  1  0.250  0.681  0.319  1.0
[/CIF]
.