The material described by Yb5ErCl13 is Baddeleyite-derived structured and crystallizes in the triclinic P1 space group. There are ten inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to one Cl(1), one Cl(12), one Cl(15), one Cl(18), one Cl(19), one Cl(4), and one Cl(9) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(7)Cl7 pentagonal bipyramid,  a cornercorner with one Er(1)Cl7 pentagonal bipyramid, corners with two equivalent Yb(4)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(7)Cl7 pentagonal bipyramid,  an edgeedge with one Er(1)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(4)Cl7 pentagonal bipyramids. In the second Yb site, Yb(2) is bonded to one Cl(10), one Cl(11), one Cl(16), one Cl(17), one Cl(2), one Cl(20), and one Cl(3) atom to form a mixture of distorted corner and edge-sharing YbCl7 pentagonal bipyramids. In the third Yb site, Yb(3) is bonded to one Cl(10), one Cl(11), one Cl(16), one Cl(17), one Cl(2), one Cl(21), and one Cl(3) atom to form a mixture of distorted corner and edge-sharing YbCl7 pentagonal bipyramids. In the fourth Yb site, Yb(4) is bonded to one Cl(1), one Cl(12), one Cl(15), one Cl(18), one Cl(22), one Cl(4), and one Cl(9) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(7)Cl7 pentagonal bipyramid,  a cornercorner with one Er(1)Cl7 pentagonal bipyramid, corners with two equivalent Yb(1)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(7)Cl7 pentagonal bipyramid,  an edgeedge with one Er(1)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(1)Cl7 pentagonal bipyramids. In the fifth Yb site, Yb(5) is bonded to one Cl(2), one Cl(20), one Cl(21), one Cl(3), one Cl(6), one Cl(7), and one Cl(8) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(2)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(3)Cl7 pentagonal bipyramid, corners with two equivalent Yb(6)Cl7 pentagonal bipyramids, corners with two equivalent Er(1)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(2)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(3)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(7)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(6)Cl7 pentagonal bipyramids. In the sixth Yb site, Yb(6) is bonded to one Cl(2), one Cl(20), one Cl(21), one Cl(3), one Cl(5), one Cl(6), and one Cl(7) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(2)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(3)Cl7 pentagonal bipyramid, corners with two equivalent Yb(5)Cl7 pentagonal bipyramids, corners with two equivalent Yb(7)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(2)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(3)Cl7 pentagonal bipyramid,  an edgeedge with one Er(1)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(5)Cl7 pentagonal bipyramids. In the seventh Yb site, Yb(7) is bonded to one Cl(1), one Cl(19), one Cl(22), one Cl(4), one Cl(5), one Cl(6), and one Cl(8) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(1)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(4)Cl7 pentagonal bipyramid, corners with two equivalent Yb(6)Cl7 pentagonal bipyramids, corners with two equivalent Er(1)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(1)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(4)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(5)Cl7 pentagonal bipyramid, and edges with two equivalent Er(1)Cl7 pentagonal bipyramids. In the eighth Yb site, Yb(8) is bonded in a 8-coordinate geometry to one Cl(12), one Cl(13), one Cl(14), one Cl(15), one Cl(23), one Cl(24), one Cl(26), and one Cl(9) atom. In the ninth Yb site, Yb(9) is bonded in a 8-coordinate geometry to one Cl(10), one Cl(11), one Cl(13), one Cl(14), one Cl(17), one Cl(24), one Cl(25), and one Cl(26) atom. In the tenth Yb site, Yb(10) is bonded in a 8-coordinate geometry to one Cl(12), one Cl(13), one Cl(14), one Cl(18), one Cl(23), one Cl(25), one Cl(26), and one Cl(9) atom. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded to one Cl(1), one Cl(19), one Cl(22), one Cl(4), one Cl(5), one Cl(7), and one Cl(8) atom to form distorted ErCl7 pentagonal bipyramids that share  a cornercorner with one Yb(1)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(4)Cl7 pentagonal bipyramid, corners with two equivalent Yb(5)Cl7 pentagonal bipyramids, corners with two equivalent Yb(7)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(1)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(4)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(6)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(7)Cl7 pentagonal bipyramids. In the second Er site, Er(2) is bonded in a 8-coordinate geometry to one Cl(10), one Cl(11), one Cl(13), one Cl(14), one Cl(16), one Cl(23), one Cl(24), and one Cl(25) atom. There are twenty-six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Yb(1), one Yb(4), one Yb(7), and one Er(1) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(12)Yb4 tetrahedra,  an edgeedge with one Cl(9)Yb4 tetrahedra, and edges with two equivalent Cl(4)Yb3Er tetrahedra. In the second Cl site, Cl(2) is bonded to one Yb(2), one Yb(3), one Yb(5), and one Yb(6) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(11)Yb3Er tetrahedra,  an edgeedge with one Cl(10)Yb3Er tetrahedra, and edges with two equivalent Cl(3)Yb4 tetrahedra. In the third Cl site, Cl(3) is bonded to one Yb(2), one Yb(3), one Yb(5), and one Yb(6) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(10)Yb3Er tetrahedra,  an edgeedge with one Cl(11)Yb3Er tetrahedra, and edges with two equivalent Cl(2)Yb4 tetrahedra. In the fourth Cl site, Cl(4) is bonded to one Yb(1), one Yb(4), one Yb(7), and one Er(1) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(9)Yb4 tetrahedra,  an edgeedge with one Cl(12)Yb4 tetrahedra, and edges with two equivalent Cl(1)Yb3Er tetrahedra. In the fifth Cl site, Cl(5) is bonded in a trigonal non-coplanar geometry to one Yb(6), one Yb(7), and one Er(1) atom. In the sixth Cl site, Cl(6) is bonded in a trigonal non-coplanar geometry to one Yb(5), one Yb(6), and one Yb(7) atom. In the seventh Cl site, Cl(7) is bonded in a trigonal non-coplanar geometry to one Yb(5), one Yb(6), and one Er(1) atom. In the eighth Cl site, Cl(8) is bonded in a distorted trigonal non-coplanar geometry to one Yb(5), one Yb(7), and one Er(1) atom. In the ninth Cl site, Cl(9) is bonded to one Yb(1), one Yb(10), one Yb(4), and one Yb(8) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(14)Yb3Er tetrahedra, corners with two equivalent Cl(4)Yb3Er tetrahedra,  an edgeedge with one Cl(1)Yb3Er tetrahedra,  an edgeedge with one Cl(13)Yb3Er tetrahedra, and edges with two equivalent Cl(12)Yb4 tetrahedra. In the tenth Cl site, Cl(10) is bonded to one Yb(2), one Yb(3), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(14)Yb3Er tetrahedra, corners with two equivalent Cl(3)Yb4 tetrahedra,  an edgeedge with one Cl(13)Yb3Er tetrahedra,  an edgeedge with one Cl(2)Yb4 tetrahedra, and edges with two equivalent Cl(11)Yb3Er tetrahedra. In the eleventh Cl site, Cl(11) is bonded to one Yb(2), one Yb(3), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(13)Yb3Er tetrahedra, corners with two equivalent Cl(2)Yb4 tetrahedra,  an edgeedge with one Cl(14)Yb3Er tetrahedra,  an edgeedge with one Cl(3)Yb4 tetrahedra, and edges with two equivalent Cl(10)Yb3Er tetrahedra. In the twelfth Cl site, Cl(12) is bonded to one Yb(1), one Yb(10), one Yb(4), and one Yb(8) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(1)Yb3Er tetrahedra, corners with two equivalent Cl(13)Yb3Er tetrahedra,  an edgeedge with one Cl(14)Yb3Er tetrahedra,  an edgeedge with one Cl(4)Yb3Er tetrahedra, and edges with two equivalent Cl(9)Yb4 tetrahedra. In the thirteenth Cl site, Cl(13) is bonded to one Yb(10), one Yb(8), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(11)Yb3Er tetrahedra, corners with two equivalent Cl(12)Yb4 tetrahedra,  an edgeedge with one Cl(10)Yb3Er tetrahedra,  an edgeedge with one Cl(9)Yb4 tetrahedra, and edges with two equivalent Cl(14)Yb3Er tetrahedra. In the fourteenth Cl site, Cl(14) is bonded to one Yb(10), one Yb(8), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(10)Yb3Er tetrahedra, corners with two equivalent Cl(9)Yb4 tetrahedra,  an edgeedge with one Cl(11)Yb3Er tetrahedra,  an edgeedge with one Cl(12)Yb4 tetrahedra, and edges with two equivalent Cl(13)Yb3Er tetrahedra. In the fifteenth Cl site, Cl(15) is bonded in a distorted trigonal planar geometry to one Yb(1), one Yb(4), and one Yb(8) atom. In the sixteenth Cl site, Cl(16) is bonded in a trigonal planar geometry to one Yb(2), one Yb(3), and one Er(2) atom. In the seventeenth Cl site, Cl(17) is bonded in a trigonal planar geometry to one Yb(2), one Yb(3), and one Yb(9) atom. In the eighteenth Cl site, Cl(18) is bonded in a distorted trigonal planar geometry to one Yb(1), one Yb(10), and one Yb(4) atom. In the nineteenth Cl site, Cl(19) is bonded in a trigonal planar geometry to one Yb(1), one Yb(7), and one Er(1) atom. In the twentieth Cl site, Cl(20) is bonded in a trigonal planar geometry to one Yb(2), one Yb(5), and one Yb(6) atom. In the twenty-first Cl site, Cl(21) is bonded in a trigonal planar geometry to one Yb(3), one Yb(5), and one Yb(6) atom. In the twenty-second Cl site, Cl(22) is bonded in a trigonal planar geometry to one Yb(4), one Yb(7), and one Er(1) atom. In the twenty-third Cl site, Cl(23) is bonded in a 3-coordinate geometry to one Yb(10), one Yb(8), and one Er(2) atom. In the twenty-fourth Cl site, Cl(24) is bonded in a 3-coordinate geometry to one Yb(8), one Yb(9), and one Er(2) atom. In the twenty-fifth Cl site, Cl(25) is bonded in a 2-coordinate geometry to one Yb(10), one Yb(9), and one Er(2) atom. In the twenty-sixth Cl site, Cl(26) is bonded in a 3-coordinate geometry to one Yb(10), one Yb(8), and one Yb(9) atom. is represented by the CIF card [CIF]
data_Yb5ErCl13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.394
_cell_length_b   6.854
_cell_length_c   20.553
_cell_angle_alpha   98.286
_cell_angle_beta   98.780
_cell_angle_gamma   89.998
_symmetry_Int_Tables_number   1
_cell_volume   880.670
_cell_formula_units_Z   2
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
  Yb  Yb0  1  0.341  0.653  0.241  1.0
  Yb  Yb1  1  0.108  0.849  0.756  1.0
  Yb  Yb2  1  0.652  0.343  0.756  1.0
  Yb  Yb3  1  0.893  0.153  0.239  1.0
  Yb  Yb4  1  0.019  0.381  0.594  1.0
  Yb  Yb5  1  0.576  0.877  0.594  1.0
  Yb  Yb6  1  0.978  0.620  0.409  1.0
  Yb  Yb7  1  0.272  0.991  0.081  1.0
  Yb  Yb8  1  0.732  0.012  0.921  1.0
  Yb  Yb9  1  0.810  0.489  0.083  1.0
  Er  Er10  1  0.428  0.117  0.409  1.0
  Er  Er11  1  0.191  0.518  0.921  1.0
  Cl  Cl12  1  0.216  0.393  0.324  1.0
  Cl  Cl13  1  0.897  0.104  0.676  1.0
  Cl  Cl14  1  0.784  0.605  0.678  1.0
  Cl  Cl15  1  0.108  0.906  0.325  1.0
  Cl  Cl16  1  0.267  0.882  0.484  1.0
  Cl  Cl17  1  0.782  0.618  0.515  1.0
  Cl  Cl18  1  0.732  0.117  0.511  1.0
  Cl  Cl19  1  0.231  0.377  0.484  1.0
  Cl  Cl20  1  0.142  0.321  0.160  1.0
  Cl  Cl21  1  0.987  0.189  0.841  1.0
  Cl  Cl22  1  0.864  0.678  0.842  1.0
  Cl  Cl23  1  0.018  0.821  0.161  1.0
  Cl  Cl24  1  0.064  0.257  0.999  1.0
  Cl  Cl25  1  0.937  0.745  0.999  1.0
  Cl  Cl26  1  0.509  0.980  0.209  1.0
  Cl  Cl27  1  0.301  0.519  0.794  1.0
  Cl  Cl28  1  0.499  0.013  0.791  1.0
  Cl  Cl29  1  0.699  0.485  0.211  1.0
  Cl  Cl30  1  0.607  0.786  0.360  1.0
  Cl  Cl31  1  0.255  0.715  0.640  1.0
  Cl  Cl32  1  0.389  0.217  0.640  1.0
  Cl  Cl33  1  0.736  0.279  0.360  1.0
  Cl  Cl34  1  0.413  0.622  0.063  1.0
  Cl  Cl35  1  0.345  0.873  0.931  1.0
  Cl  Cl36  1  0.568  0.374  0.930  1.0
  Cl  Cl37  1  0.652  0.122  0.065  1.0
[/CIF]
.
The material described by Yb5ErCl13 is Baddeleyite-derived structured and crystallizes in the triclinic P1 space group. There are ten inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to one Cl(1), one Cl(12), one Cl(15), one Cl(18), one Cl(19), one Cl(4), and one Cl(9) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(7)Cl7 pentagonal bipyramid,  a cornercorner with one Er(1)Cl7 pentagonal bipyramid, corners with two equivalent Yb(4)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(7)Cl7 pentagonal bipyramid,  an edgeedge with one Er(1)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(4)Cl7 pentagonal bipyramids. In the second Yb site, Yb(2) is bonded to one Cl(10), one Cl(11), one Cl(16), one Cl(17), one Cl(2), one Cl(20), and one Cl(3) atom to form a mixture of distorted corner and edge-sharing YbCl7 pentagonal bipyramids. In the third Yb site, Yb(3) is bonded to one Cl(10), one Cl(11), one Cl(16), one Cl(17), one Cl(2), one Cl(21), and one Cl(3) atom to form a mixture of distorted corner and edge-sharing YbCl7 pentagonal bipyramids. In the fourth Yb site, Yb(4) is bonded to one Cl(1), one Cl(12), one Cl(15), one Cl(18), one Cl(22), one Cl(4), and one Cl(9) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(7)Cl7 pentagonal bipyramid,  a cornercorner with one Er(1)Cl7 pentagonal bipyramid, corners with two equivalent Yb(1)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(7)Cl7 pentagonal bipyramid,  an edgeedge with one Er(1)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(1)Cl7 pentagonal bipyramids. In the fifth Yb site, Yb(5) is bonded to one Cl(2), one Cl(20), one Cl(21), one Cl(3), one Cl(6), one Cl(7), and one Cl(8) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(2)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(3)Cl7 pentagonal bipyramid, corners with two equivalent Yb(6)Cl7 pentagonal bipyramids, corners with two equivalent Er(1)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(2)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(3)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(7)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(6)Cl7 pentagonal bipyramids. In the sixth Yb site, Yb(6) is bonded to one Cl(2), one Cl(20), one Cl(21), one Cl(3), one Cl(5), one Cl(6), and one Cl(7) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(2)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(3)Cl7 pentagonal bipyramid, corners with two equivalent Yb(5)Cl7 pentagonal bipyramids, corners with two equivalent Yb(7)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(2)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(3)Cl7 pentagonal bipyramid,  an edgeedge with one Er(1)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(5)Cl7 pentagonal bipyramids. In the seventh Yb site, Yb(7) is bonded to one Cl(1), one Cl(19), one Cl(22), one Cl(4), one Cl(5), one Cl(6), and one Cl(8) atom to form distorted YbCl7 pentagonal bipyramids that share  a cornercorner with one Yb(1)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(4)Cl7 pentagonal bipyramid, corners with two equivalent Yb(6)Cl7 pentagonal bipyramids, corners with two equivalent Er(1)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(1)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(4)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(5)Cl7 pentagonal bipyramid, and edges with two equivalent Er(1)Cl7 pentagonal bipyramids. In the eighth Yb site, Yb(8) is bonded in a 8-coordinate geometry to one Cl(12), one Cl(13), one Cl(14), one Cl(15), one Cl(23), one Cl(24), one Cl(26), and one Cl(9) atom. In the ninth Yb site, Yb(9) is bonded in a 8-coordinate geometry to one Cl(10), one Cl(11), one Cl(13), one Cl(14), one Cl(17), one Cl(24), one Cl(25), and one Cl(26) atom. In the tenth Yb site, Yb(10) is bonded in a 8-coordinate geometry to one Cl(12), one Cl(13), one Cl(14), one Cl(18), one Cl(23), one Cl(25), one Cl(26), and one Cl(9) atom. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded to one Cl(1), one Cl(19), one Cl(22), one Cl(4), one Cl(5), one Cl(7), and one Cl(8) atom to form distorted ErCl7 pentagonal bipyramids that share  a cornercorner with one Yb(1)Cl7 pentagonal bipyramid,  a cornercorner with one Yb(4)Cl7 pentagonal bipyramid, corners with two equivalent Yb(5)Cl7 pentagonal bipyramids, corners with two equivalent Yb(7)Cl7 pentagonal bipyramids,  an edgeedge with one Yb(1)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(4)Cl7 pentagonal bipyramid,  an edgeedge with one Yb(6)Cl7 pentagonal bipyramid, and edges with two equivalent Yb(7)Cl7 pentagonal bipyramids. In the second Er site, Er(2) is bonded in a 8-coordinate geometry to one Cl(10), one Cl(11), one Cl(13), one Cl(14), one Cl(16), one Cl(23), one Cl(24), and one Cl(25) atom. There are twenty-six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Yb(1), one Yb(4), one Yb(7), and one Er(1) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(12)Yb4 tetrahedra,  an edgeedge with one Cl(9)Yb4 tetrahedra, and edges with two equivalent Cl(4)Yb3Er tetrahedra. In the second Cl site, Cl(2) is bonded to one Yb(2), one Yb(3), one Yb(5), and one Yb(6) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(11)Yb3Er tetrahedra,  an edgeedge with one Cl(10)Yb3Er tetrahedra, and edges with two equivalent Cl(3)Yb4 tetrahedra. In the third Cl site, Cl(3) is bonded to one Yb(2), one Yb(3), one Yb(5), and one Yb(6) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(10)Yb3Er tetrahedra,  an edgeedge with one Cl(11)Yb3Er tetrahedra, and edges with two equivalent Cl(2)Yb4 tetrahedra. In the fourth Cl site, Cl(4) is bonded to one Yb(1), one Yb(4), one Yb(7), and one Er(1) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(9)Yb4 tetrahedra,  an edgeedge with one Cl(12)Yb4 tetrahedra, and edges with two equivalent Cl(1)Yb3Er tetrahedra. In the fifth Cl site, Cl(5) is bonded in a trigonal non-coplanar geometry to one Yb(6), one Yb(7), and one Er(1) atom. In the sixth Cl site, Cl(6) is bonded in a trigonal non-coplanar geometry to one Yb(5), one Yb(6), and one Yb(7) atom. In the seventh Cl site, Cl(7) is bonded in a trigonal non-coplanar geometry to one Yb(5), one Yb(6), and one Er(1) atom. In the eighth Cl site, Cl(8) is bonded in a distorted trigonal non-coplanar geometry to one Yb(5), one Yb(7), and one Er(1) atom. In the ninth Cl site, Cl(9) is bonded to one Yb(1), one Yb(10), one Yb(4), and one Yb(8) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(14)Yb3Er tetrahedra, corners with two equivalent Cl(4)Yb3Er tetrahedra,  an edgeedge with one Cl(1)Yb3Er tetrahedra,  an edgeedge with one Cl(13)Yb3Er tetrahedra, and edges with two equivalent Cl(12)Yb4 tetrahedra. In the tenth Cl site, Cl(10) is bonded to one Yb(2), one Yb(3), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(14)Yb3Er tetrahedra, corners with two equivalent Cl(3)Yb4 tetrahedra,  an edgeedge with one Cl(13)Yb3Er tetrahedra,  an edgeedge with one Cl(2)Yb4 tetrahedra, and edges with two equivalent Cl(11)Yb3Er tetrahedra. In the eleventh Cl site, Cl(11) is bonded to one Yb(2), one Yb(3), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(13)Yb3Er tetrahedra, corners with two equivalent Cl(2)Yb4 tetrahedra,  an edgeedge with one Cl(14)Yb3Er tetrahedra,  an edgeedge with one Cl(3)Yb4 tetrahedra, and edges with two equivalent Cl(10)Yb3Er tetrahedra. In the twelfth Cl site, Cl(12) is bonded to one Yb(1), one Yb(10), one Yb(4), and one Yb(8) atom to form ClYb4 tetrahedra that share corners with two equivalent Cl(1)Yb3Er tetrahedra, corners with two equivalent Cl(13)Yb3Er tetrahedra,  an edgeedge with one Cl(14)Yb3Er tetrahedra,  an edgeedge with one Cl(4)Yb3Er tetrahedra, and edges with two equivalent Cl(9)Yb4 tetrahedra. In the thirteenth Cl site, Cl(13) is bonded to one Yb(10), one Yb(8), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(11)Yb3Er tetrahedra, corners with two equivalent Cl(12)Yb4 tetrahedra,  an edgeedge with one Cl(10)Yb3Er tetrahedra,  an edgeedge with one Cl(9)Yb4 tetrahedra, and edges with two equivalent Cl(14)Yb3Er tetrahedra. In the fourteenth Cl site, Cl(14) is bonded to one Yb(10), one Yb(8), one Yb(9), and one Er(2) atom to form ClYb3Er tetrahedra that share corners with two equivalent Cl(10)Yb3Er tetrahedra, corners with two equivalent Cl(9)Yb4 tetrahedra,  an edgeedge with one Cl(11)Yb3Er tetrahedra,  an edgeedge with one Cl(12)Yb4 tetrahedra, and edges with two equivalent Cl(13)Yb3Er tetrahedra. In the fifteenth Cl site, Cl(15) is bonded in a distorted trigonal planar geometry to one Yb(1), one Yb(4), and one Yb(8) atom. In the sixteenth Cl site, Cl(16) is bonded in a trigonal planar geometry to one Yb(2), one Yb(3), and one Er(2) atom. In the seventeenth Cl site, Cl(17) is bonded in a trigonal planar geometry to one Yb(2), one Yb(3), and one Yb(9) atom. In the eighteenth Cl site, Cl(18) is bonded in a distorted trigonal planar geometry to one Yb(1), one Yb(10), and one Yb(4) atom. In the nineteenth Cl site, Cl(19) is bonded in a trigonal planar geometry to one Yb(1), one Yb(7), and one Er(1) atom. In the twentieth Cl site, Cl(20) is bonded in a trigonal planar geometry to one Yb(2), one Yb(5), and one Yb(6) atom. In the twenty-first Cl site, Cl(21) is bonded in a trigonal planar geometry to one Yb(3), one Yb(5), and one Yb(6) atom. In the twenty-second Cl site, Cl(22) is bonded in a trigonal planar geometry to one Yb(4), one Yb(7), and one Er(1) atom. In the twenty-third Cl site, Cl(23) is bonded in a 3-coordinate geometry to one Yb(10), one Yb(8), and one Er(2) atom. In the twenty-fourth Cl site, Cl(24) is bonded in a 3-coordinate geometry to one Yb(8), one Yb(9), and one Er(2) atom. In the twenty-fifth Cl site, Cl(25) is bonded in a 2-coordinate geometry to one Yb(10), one Yb(9), and one Er(2) atom. In the twenty-sixth Cl site, Cl(26) is bonded in a 3-coordinate geometry to one Yb(10), one Yb(8), and one Yb(9) atom. is represented by the CIF card [CIF]
data_Yb5ErCl13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.394
_cell_length_b   6.854
_cell_length_c   20.553
_cell_angle_alpha   98.286
_cell_angle_beta   98.780
_cell_angle_gamma   89.998
_symmetry_Int_Tables_number   1
_cell_volume   880.670
_cell_formula_units_Z   2
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
  Yb  Yb0  1  0.341  0.653  0.241  1.0
  Yb  Yb1  1  0.108  0.849  0.756  1.0
  Yb  Yb2  1  0.652  0.343  0.756  1.0
  Yb  Yb3  1  0.893  0.153  0.239  1.0
  Yb  Yb4  1  0.019  0.381  0.594  1.0
  Yb  Yb5  1  0.576  0.877  0.594  1.0
  Yb  Yb6  1  0.978  0.620  0.409  1.0
  Yb  Yb7  1  0.272  0.991  0.081  1.0
  Yb  Yb8  1  0.732  0.012  0.921  1.0
  Yb  Yb9  1  0.810  0.489  0.083  1.0
  Er  Er10  1  0.428  0.117  0.409  1.0
  Er  Er11  1  0.191  0.518  0.921  1.0
  Cl  Cl12  1  0.216  0.393  0.324  1.0
  Cl  Cl13  1  0.897  0.104  0.676  1.0
  Cl  Cl14  1  0.784  0.605  0.678  1.0
  Cl  Cl15  1  0.108  0.906  0.325  1.0
  Cl  Cl16  1  0.267  0.882  0.484  1.0
  Cl  Cl17  1  0.782  0.618  0.515  1.0
  Cl  Cl18  1  0.732  0.117  0.511  1.0
  Cl  Cl19  1  0.231  0.377  0.484  1.0
  Cl  Cl20  1  0.142  0.321  0.160  1.0
  Cl  Cl21  1  0.987  0.189  0.841  1.0
  Cl  Cl22  1  0.864  0.678  0.842  1.0
  Cl  Cl23  1  0.018  0.821  0.161  1.0
  Cl  Cl24  1  0.064  0.257  0.999  1.0
  Cl  Cl25  1  0.937  0.745  0.999  1.0
  Cl  Cl26  1  0.509  0.980  0.209  1.0
  Cl  Cl27  1  0.301  0.519  0.794  1.0
  Cl  Cl28  1  0.499  0.013  0.791  1.0
  Cl  Cl29  1  0.699  0.485  0.211  1.0
  Cl  Cl30  1  0.607  0.786  0.360  1.0
  Cl  Cl31  1  0.255  0.715  0.640  1.0
  Cl  Cl32  1  0.389  0.217  0.640  1.0
  Cl  Cl33  1  0.736  0.279  0.360  1.0
  Cl  Cl34  1  0.413  0.622  0.063  1.0
  Cl  Cl35  1  0.345  0.873  0.931  1.0
  Cl  Cl36  1  0.568  0.374  0.930  1.0
  Cl  Cl37  1  0.652  0.122  0.065  1.0
[/CIF]
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