The structure described by Er8Mo5Mn3O28 crystallizes in the monoclinic C2 space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded in a distorted body-centered cubic geometry to one O(1), one O(10), one O(11), one O(12), one O(13), one O(14), one O(6), and one O(7) atom. In the second Er site, Er(2) is bonded in a distorted body-centered cubic geometry to one O(11), one O(12), one O(13), one O(14), one O(2), one O(5), one O(8), and one O(9) atom. In the third Er site, Er(3) is bonded to one O(10), one O(12), one O(14), one O(3), one O(5), one O(6), and one O(9) atom to form distorted ErO7 pentagonal bipyramids that share  a cornercorner with one Mn(3)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, and edges with two equivalent Er(4)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 48-60°. In the fourth Er site, Er(4) is bonded to one O(10), one O(11), one O(13), one O(4), one O(5), one O(6), and one O(9) atom to form distorted ErO7 pentagonal bipyramids that share  a cornercorner with one Mo(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra,  an edgeedge with one Mo(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra, and edges with two equivalent Er(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 40-51°. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(11), one O(3), one O(7), one O(9), and two equivalent O(2) atoms to form MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(3)O6 octahedra, corners with two equivalent Er(4)O7 pentagonal bipyramids, and  an edgeedge with one Er(3)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-46°. In the second Mo site, Mo(2) is bonded to one O(10), one O(12), one O(4), one O(8), and two equivalent O(1) atoms to form MoO6 octahedra that share corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Er(3)O7 pentagonal bipyramids, and  an edgeedge with one Er(4)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 35-47°. In the third Mo site, Mo(3) is bonded to two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms to form MoO6 octahedra that share corners with four equivalent Mo(1)O6 octahedra, corners with two equivalent Er(4)O7 pentagonal bipyramids, and edges with two equivalent Er(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 42-46°. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(13), and two equivalent O(8) atoms. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to two equivalent O(14), two equivalent O(2), and two equivalent O(7) atoms. In the third Mn site, Mn(3) is bonded to two equivalent O(4), two equivalent O(5), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with four equivalent Mo(2)O6 octahedra, corners with two equivalent Er(3)O7 pentagonal bipyramids, and edges with two equivalent Er(4)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 35-47°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Er(1), two equivalent Mo(2), and one Mn(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Er(2), two equivalent Mo(1), and one Mn(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Er(3), one Mo(1), and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Er(4), one Mo(2), and one Mn(3) atom. In the fifth O site, O(5) is bonded to one Er(2), one Er(3), one Er(4), and one Mn(3) atom to form OEr3Mn tetrahedra that share  a cornercorner with one O(5)Er3Mn tetrahedra, corners with two equivalent O(13)Er3Mn tetrahedra, corners with two equivalent O(10)Er3Mo tetrahedra, corners with two equivalent O(12)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  an edgeedge with one O(14)Er3Mn tetrahedra,  an edgeedge with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the sixth O site, O(6) is bonded to one Er(1), one Er(3), one Er(4), and one Mo(3) atom to form distorted OEr3Mo tetrahedra that share  a cornercorner with one O(6)Er3Mo tetrahedra, corners with two equivalent O(14)Er3Mn tetrahedra, corners with two equivalent O(11)Er3Mo tetrahedra, corners with three equivalent O(10)Er3Mo tetrahedra,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(13)Er3Mn tetrahedra,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(12)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. In the seventh O site, O(7) is bonded to one Er(1), one Mo(1), one Mo(3), and one Mn(2) atom to form distorted OErMnMo2 trigonal pyramids that share  a cornercorner with one O(13)Er3Mn tetrahedra,  a cornercorner with one O(14)Er3Mn tetrahedra,  a cornercorner with one O(10)Er3Mo tetrahedra,  a cornercorner with one O(12)Er3Mo tetrahedra,  a cornercorner with one O(6)Er3Mo tetrahedra,  an edgeedge with one O(14)Er3Mn tetrahedra,  an edgeedge with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. In the eighth O site, O(8) is bonded to one Er(2), one Mo(2), one Mn(1), and one Mn(3) atom to form distorted OErMn2Mo trigonal pyramids that share  a cornercorner with one O(13)Er3Mn tetrahedra,  a cornercorner with one O(14)Er3Mn tetrahedra,  a cornercorner with one O(5)Er3Mn tetrahedra,  a cornercorner with one O(10)Er3Mo tetrahedra,  a cornercorner with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(13)Er3Mn tetrahedra,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(12)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Er(2), one Er(3), one Er(4), and one Mo(1) atom. In the tenth O site, O(10) is bonded to one Er(1), one Er(3), one Er(4), and one Mo(2) atom to form OEr3Mo tetrahedra that share corners with two equivalent O(13)Er3Mn tetrahedra, corners with two equivalent O(5)Er3Mn tetrahedra, corners with three equivalent O(12)Er3Mo tetrahedra, corners with three equivalent O(6)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(14)Er3Mn tetrahedra, and  an edgeedge with one O(11)Er3Mo tetrahedra. In the eleventh O site, O(11) is bonded to one Er(1), one Er(2), one Er(4), and one Mo(1) atom to form OEr3Mo tetrahedra that share corners with two equivalent O(14)Er3Mn tetrahedra, corners with two equivalent O(6)Er3Mo tetrahedra, corners with three equivalent O(13)Er3Mn tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(10)Er3Mo tetrahedra,  an edgeedge with one O(12)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Er(1), one Er(2), one Er(3), and one Mo(2) atom to form OEr3Mo tetrahedra that share corners with two equivalent O(13)Er3Mn tetrahedra, corners with two equivalent O(5)Er3Mn tetrahedra, corners with three equivalent O(14)Er3Mn tetrahedra, corners with three equivalent O(10)Er3Mo tetrahedra,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Er(1), one Er(2), one Er(4), and one Mn(1) atom to form OEr3Mn tetrahedra that share  a cornercorner with one O(13)Er3Mn tetrahedra, corners with two equivalent O(5)Er3Mn tetrahedra, corners with two equivalent O(10)Er3Mo tetrahedra, corners with two equivalent O(12)Er3Mo tetrahedra, corners with three equivalent O(11)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(14)Er3Mn tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Er(1), one Er(2), one Er(3), and one Mn(2) atom to form OEr3Mn tetrahedra that share  a cornercorner with one O(14)Er3Mn tetrahedra, corners with two equivalent O(11)Er3Mo tetrahedra, corners with two equivalent O(6)Er3Mo tetrahedra, corners with three equivalent O(12)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(13)Er3Mn tetrahedra,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(10)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. is represented by the CIF file [CIF]
data_Er8Mn3Mo5O28
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.458
_cell_length_b   7.458
_cell_length_c   11.633
_cell_angle_alpha   81.032
_cell_angle_beta   81.032
_cell_angle_gamma   60.508
_symmetry_Int_Tables_number   1
_cell_volume   553.973
_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
  Er  Er0  1  0.739  0.506  0.243  1.0
  Er  Er1  1  0.494  0.261  0.757  1.0
  Er  Er2  1  0.254  0.505  0.250  1.0
  Er  Er3  1  0.495  0.746  0.750  1.0
  Er  Er4  1  0.013  0.752  0.726  1.0
  Er  Er5  1  0.248  0.987  0.274  1.0
  Er  Er6  1  0.996  0.244  0.785  1.0
  Er  Er7  1  0.756  0.004  0.215  1.0
  Mn  Mn8  1  0.578  0.422  0.000  1.0
  Mn  Mn9  1  0.409  0.591  0.500  1.0
  Mn  Mn10  1  0.140  0.860  0.000  1.0
  Mo  Mo11  1  0.864  0.635  0.496  1.0
  Mo  Mo12  1  0.365  0.136  0.504  1.0
  Mo  Mo13  1  0.128  0.371  0.010  1.0
  Mo  Mo14  1  0.629  0.872  0.990  1.0
  Mo  Mo15  1  0.859  0.141  0.500  1.0
  O  O16  1  0.826  0.559  0.042  1.0
  O  O17  1  0.441  0.174  0.958  1.0
  O  O18  1  0.174  0.439  0.460  1.0
  O  O19  1  0.561  0.826  0.540  1.0
  O  O20  1  0.952  0.833  0.530  1.0
  O  O21  1  0.167  0.048  0.470  1.0
  O  O22  1  0.060  0.167  0.978  1.0
  O  O23  1  0.833  0.940  0.022  1.0
  O  O24  1  0.118  0.853  0.169  1.0
  O  O25  1  0.147  0.882  0.831  1.0
  O  O26  1  0.873  0.135  0.334  1.0
  O  O27  1  0.865  0.127  0.666  1.0
  O  O28  1  0.762  0.445  0.463  1.0
  O  O29  1  0.555  0.238  0.537  1.0
  O  O30  1  0.238  0.545  0.038  1.0
  O  O31  1  0.455  0.762  0.962  1.0
  O  O32  1  0.453  0.123  0.340  1.0
  O  O33  1  0.877  0.547  0.660  1.0
  O  O34  1  0.555  0.866  0.166  1.0
  O  O35  1  0.134  0.445  0.834  1.0
  O  O36  1  0.877  0.693  0.323  1.0
  O  O37  1  0.307  0.123  0.677  1.0
  O  O38  1  0.109  0.314  0.191  1.0
  O  O39  1  0.686  0.891  0.809  1.0
  O  O40  1  0.652  0.408  0.829  1.0
  O  O41  1  0.592  0.348  0.171  1.0
  O  O42  1  0.354  0.591  0.672  1.0
  O  O43  1  0.409  0.646  0.328  1.0
[/CIF]
.
The structure described by Er8Mo5Mn3O28 crystallizes in the monoclinic C2 space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded in a distorted body-centered cubic geometry to one O(1), one O(10), one O(11), one O(12), one O(13), one O(14), one O(6), and one O(7) atom. In the second Er site, Er(2) is bonded in a distorted body-centered cubic geometry to one O(11), one O(12), one O(13), one O(14), one O(2), one O(5), one O(8), and one O(9) atom. In the third Er site, Er(3) is bonded to one O(10), one O(12), one O(14), one O(3), one O(5), one O(6), and one O(9) atom to form distorted ErO7 pentagonal bipyramids that share  a cornercorner with one Mn(3)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(3)O6 octahedra, and edges with two equivalent Er(4)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 48-60°. In the fourth Er site, Er(4) is bonded to one O(10), one O(11), one O(13), one O(4), one O(5), one O(6), and one O(9) atom to form distorted ErO7 pentagonal bipyramids that share  a cornercorner with one Mo(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra,  an edgeedge with one Mo(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra, and edges with two equivalent Er(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 40-51°. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(11), one O(3), one O(7), one O(9), and two equivalent O(2) atoms to form MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(3)O6 octahedra, corners with two equivalent Er(4)O7 pentagonal bipyramids, and  an edgeedge with one Er(3)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-46°. In the second Mo site, Mo(2) is bonded to one O(10), one O(12), one O(4), one O(8), and two equivalent O(1) atoms to form MoO6 octahedra that share corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Er(3)O7 pentagonal bipyramids, and  an edgeedge with one Er(4)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 35-47°. In the third Mo site, Mo(3) is bonded to two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms to form MoO6 octahedra that share corners with four equivalent Mo(1)O6 octahedra, corners with two equivalent Er(4)O7 pentagonal bipyramids, and edges with two equivalent Er(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 42-46°. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(13), and two equivalent O(8) atoms. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to two equivalent O(14), two equivalent O(2), and two equivalent O(7) atoms. In the third Mn site, Mn(3) is bonded to two equivalent O(4), two equivalent O(5), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with four equivalent Mo(2)O6 octahedra, corners with two equivalent Er(3)O7 pentagonal bipyramids, and edges with two equivalent Er(4)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 35-47°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Er(1), two equivalent Mo(2), and one Mn(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Er(2), two equivalent Mo(1), and one Mn(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Er(3), one Mo(1), and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Er(4), one Mo(2), and one Mn(3) atom. In the fifth O site, O(5) is bonded to one Er(2), one Er(3), one Er(4), and one Mn(3) atom to form OEr3Mn tetrahedra that share  a cornercorner with one O(5)Er3Mn tetrahedra, corners with two equivalent O(13)Er3Mn tetrahedra, corners with two equivalent O(10)Er3Mo tetrahedra, corners with two equivalent O(12)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  an edgeedge with one O(14)Er3Mn tetrahedra,  an edgeedge with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the sixth O site, O(6) is bonded to one Er(1), one Er(3), one Er(4), and one Mo(3) atom to form distorted OEr3Mo tetrahedra that share  a cornercorner with one O(6)Er3Mo tetrahedra, corners with two equivalent O(14)Er3Mn tetrahedra, corners with two equivalent O(11)Er3Mo tetrahedra, corners with three equivalent O(10)Er3Mo tetrahedra,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(13)Er3Mn tetrahedra,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(12)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. In the seventh O site, O(7) is bonded to one Er(1), one Mo(1), one Mo(3), and one Mn(2) atom to form distorted OErMnMo2 trigonal pyramids that share  a cornercorner with one O(13)Er3Mn tetrahedra,  a cornercorner with one O(14)Er3Mn tetrahedra,  a cornercorner with one O(10)Er3Mo tetrahedra,  a cornercorner with one O(12)Er3Mo tetrahedra,  a cornercorner with one O(6)Er3Mo tetrahedra,  an edgeedge with one O(14)Er3Mn tetrahedra,  an edgeedge with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. In the eighth O site, O(8) is bonded to one Er(2), one Mo(2), one Mn(1), and one Mn(3) atom to form distorted OErMn2Mo trigonal pyramids that share  a cornercorner with one O(13)Er3Mn tetrahedra,  a cornercorner with one O(14)Er3Mn tetrahedra,  a cornercorner with one O(5)Er3Mn tetrahedra,  a cornercorner with one O(10)Er3Mo tetrahedra,  a cornercorner with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(13)Er3Mn tetrahedra,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(12)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Er(2), one Er(3), one Er(4), and one Mo(1) atom. In the tenth O site, O(10) is bonded to one Er(1), one Er(3), one Er(4), and one Mo(2) atom to form OEr3Mo tetrahedra that share corners with two equivalent O(13)Er3Mn tetrahedra, corners with two equivalent O(5)Er3Mn tetrahedra, corners with three equivalent O(12)Er3Mo tetrahedra, corners with three equivalent O(6)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(14)Er3Mn tetrahedra, and  an edgeedge with one O(11)Er3Mo tetrahedra. In the eleventh O site, O(11) is bonded to one Er(1), one Er(2), one Er(4), and one Mo(1) atom to form OEr3Mo tetrahedra that share corners with two equivalent O(14)Er3Mn tetrahedra, corners with two equivalent O(6)Er3Mo tetrahedra, corners with three equivalent O(13)Er3Mn tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(10)Er3Mo tetrahedra,  an edgeedge with one O(12)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Er(1), one Er(2), one Er(3), and one Mo(2) atom to form OEr3Mo tetrahedra that share corners with two equivalent O(13)Er3Mn tetrahedra, corners with two equivalent O(5)Er3Mn tetrahedra, corners with three equivalent O(14)Er3Mn tetrahedra, corners with three equivalent O(10)Er3Mo tetrahedra,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(11)Er3Mo tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Er(1), one Er(2), one Er(4), and one Mn(1) atom to form OEr3Mn tetrahedra that share  a cornercorner with one O(13)Er3Mn tetrahedra, corners with two equivalent O(5)Er3Mn tetrahedra, corners with two equivalent O(10)Er3Mo tetrahedra, corners with two equivalent O(12)Er3Mo tetrahedra, corners with three equivalent O(11)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(14)Er3Mn tetrahedra,  an edgeedge with one O(6)Er3Mo tetrahedra, and  an edgeedge with one O(8)ErMn2Mo trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Er(1), one Er(2), one Er(3), and one Mn(2) atom to form OEr3Mn tetrahedra that share  a cornercorner with one O(14)Er3Mn tetrahedra, corners with two equivalent O(11)Er3Mo tetrahedra, corners with two equivalent O(6)Er3Mo tetrahedra, corners with three equivalent O(12)Er3Mo tetrahedra,  a cornercorner with one O(8)ErMn2Mo trigonal pyramid,  a cornercorner with one O(7)ErMnMo2 trigonal pyramid,  an edgeedge with one O(13)Er3Mn tetrahedra,  an edgeedge with one O(5)Er3Mn tetrahedra,  an edgeedge with one O(10)Er3Mo tetrahedra, and  an edgeedge with one O(7)ErMnMo2 trigonal pyramid. is represented by the CIF file [CIF]
data_Er8Mn3Mo5O28
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.458
_cell_length_b   7.458
_cell_length_c   11.633
_cell_angle_alpha   81.032
_cell_angle_beta   81.032
_cell_angle_gamma   60.508
_symmetry_Int_Tables_number   1
_cell_volume   553.973
_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
  Er  Er0  1  0.739  0.506  0.243  1.0
  Er  Er1  1  0.494  0.261  0.757  1.0
  Er  Er2  1  0.254  0.505  0.250  1.0
  Er  Er3  1  0.495  0.746  0.750  1.0
  Er  Er4  1  0.013  0.752  0.726  1.0
  Er  Er5  1  0.248  0.987  0.274  1.0
  Er  Er6  1  0.996  0.244  0.785  1.0
  Er  Er7  1  0.756  0.004  0.215  1.0
  Mn  Mn8  1  0.578  0.422  0.000  1.0
  Mn  Mn9  1  0.409  0.591  0.500  1.0
  Mn  Mn10  1  0.140  0.860  0.000  1.0
  Mo  Mo11  1  0.864  0.635  0.496  1.0
  Mo  Mo12  1  0.365  0.136  0.504  1.0
  Mo  Mo13  1  0.128  0.371  0.010  1.0
  Mo  Mo14  1  0.629  0.872  0.990  1.0
  Mo  Mo15  1  0.859  0.141  0.500  1.0
  O  O16  1  0.826  0.559  0.042  1.0
  O  O17  1  0.441  0.174  0.958  1.0
  O  O18  1  0.174  0.439  0.460  1.0
  O  O19  1  0.561  0.826  0.540  1.0
  O  O20  1  0.952  0.833  0.530  1.0
  O  O21  1  0.167  0.048  0.470  1.0
  O  O22  1  0.060  0.167  0.978  1.0
  O  O23  1  0.833  0.940  0.022  1.0
  O  O24  1  0.118  0.853  0.169  1.0
  O  O25  1  0.147  0.882  0.831  1.0
  O  O26  1  0.873  0.135  0.334  1.0
  O  O27  1  0.865  0.127  0.666  1.0
  O  O28  1  0.762  0.445  0.463  1.0
  O  O29  1  0.555  0.238  0.537  1.0
  O  O30  1  0.238  0.545  0.038  1.0
  O  O31  1  0.455  0.762  0.962  1.0
  O  O32  1  0.453  0.123  0.340  1.0
  O  O33  1  0.877  0.547  0.660  1.0
  O  O34  1  0.555  0.866  0.166  1.0
  O  O35  1  0.134  0.445  0.834  1.0
  O  O36  1  0.877  0.693  0.323  1.0
  O  O37  1  0.307  0.123  0.677  1.0
  O  O38  1  0.109  0.314  0.191  1.0
  O  O39  1  0.686  0.891  0.809  1.0
  O  O40  1  0.652  0.408  0.829  1.0
  O  O41  1  0.592  0.348  0.171  1.0
  O  O42  1  0.354  0.591  0.672  1.0
  O  O43  1  0.409  0.646  0.328  1.0
[/CIF]
.