The crystal structure described by Tm2Cu2O5 is Spinel-like structured and crystallizes in the orthorhombic Pna2_1 space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(5) atoms to form a mixture of distorted edge and corner-sharing TmO6 octahedra. The corner-sharing octahedral tilt angles range from 20-64°. In the second Tm site, Tm(2) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of edge and corner-sharing TmO6 octahedra. The corner-sharing octahedral tilt angles range from 20-64°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(5) atom. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded to one Tm(2), two equivalent Tm(1), and one Cu(1) atom to form OTm3Cu tetrahedra that share corners with two equivalent O(5)Tm3Cu tetrahedra, corners with four equivalent O(1)Tm3Cu tetrahedra, corners with three equivalent O(2)Tm2Cu2 trigonal pyramids, corners with three equivalent O(4)Tm2Cu2 trigonal pyramids, and  an edgeedge with one O(2)Tm2Cu2 trigonal pyramid. In the second O site, O(1) is bonded to one Tm(1), two equivalent Tm(2), and one Cu(2) atom to form OTm3Cu tetrahedra that share corners with two equivalent O(1)Tm3Cu tetrahedra, corners with four equivalent O(5)Tm3Cu tetrahedra, corners with three equivalent O(2)Tm2Cu2 trigonal pyramids, corners with three equivalent O(4)Tm2Cu2 trigonal pyramids, and  an edgeedge with one O(4)Tm2Cu2 trigonal pyramid. In the third O site, O(2) is bonded to two equivalent Tm(1), one Cu(1), and one Cu(2) atom to form distorted OTm2Cu2 trigonal pyramids that share corners with three equivalent O(1)Tm3Cu tetrahedra, corners with three equivalent O(5)Tm3Cu tetrahedra, corners with two equivalent O(2)Tm2Cu2 trigonal pyramids,  an edgeedge with one O(5)Tm3Cu tetrahedra, and  an edgeedge with one O(4)Tm2Cu2 trigonal pyramid. In the fourth O site, O(3) is bonded in a distorted see-saw-like geometry to one Tm(1), one Tm(2), one Cu(1), and one Cu(2) atom. In the fifth O site, O(4) is bonded to two equivalent Tm(2), one Cu(1), and one Cu(2) atom to form OTm2Cu2 trigonal pyramids that share corners with three equivalent O(1)Tm3Cu tetrahedra, corners with three equivalent O(5)Tm3Cu tetrahedra, corners with two equivalent O(4)Tm2Cu2 trigonal pyramids,  an edgeedge with one O(1)Tm3Cu tetrahedra, and  an edgeedge with one O(2)Tm2Cu2 trigonal pyramid. is represented by the CIF file [CIF]
data_Tm2Cu2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.459
_cell_length_b   10.818
_cell_length_c   12.434
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   465.288
_cell_formula_units_Z   4
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
  Tm  Tm0  1  0.276  0.542  0.830  1.0
  Tm  Tm1  1  0.724  0.458  0.330  1.0
  Tm  Tm2  1  0.224  0.042  0.830  1.0
  Tm  Tm3  1  0.776  0.958  0.330  1.0
  Tm  Tm4  1  0.278  0.708  0.502  1.0
  Tm  Tm5  1  0.722  0.292  0.002  1.0
  Tm  Tm6  1  0.222  0.208  0.502  1.0
  Tm  Tm7  1  0.778  0.792  0.002  1.0
  Cu  Cu8  1  0.845  0.762  0.719  1.0
  Cu  Cu9  1  0.155  0.238  0.219  1.0
  Cu  Cu10  1  0.655  0.262  0.719  1.0
  Cu  Cu11  1  0.345  0.738  0.219  1.0
  Cu  Cu12  1  0.840  0.489  0.612  1.0
  Cu  Cu13  1  0.160  0.511  0.112  1.0
  Cu  Cu14  1  0.660  0.989  0.612  1.0
  Cu  Cu15  1  0.340  0.011  0.112  1.0
  O  O16  1  0.272  0.922  0.972  1.0
  O  O17  1  0.728  0.078  0.472  1.0
  O  O18  1  0.228  0.422  0.972  1.0
  O  O19  1  0.772  0.578  0.472  1.0
  O  O20  1  0.724  0.929  0.764  1.0
  O  O21  1  0.276  0.071  0.264  1.0
  O  O22  1  0.776  0.429  0.764  1.0
  O  O23  1  0.224  0.571  0.264  1.0
  O  O24  1  0.166  0.625  0.666  1.0
  O  O25  1  0.834  0.375  0.166  1.0
  O  O26  1  0.334  0.125  0.666  1.0
  O  O27  1  0.666  0.875  0.166  1.0
  O  O28  1  0.781  0.821  0.566  1.0
  O  O29  1  0.219  0.179  0.066  1.0
  O  O30  1  0.719  0.321  0.566  1.0
  O  O31  1  0.281  0.679  0.066  1.0
  O  O32  1  0.276  0.828  0.359  1.0
  O  O33  1  0.724  0.172  0.859  1.0
  O  O34  1  0.224  0.328  0.359  1.0
  O  O35  1  0.776  0.672  0.859  1.0
[/CIF]
.
The crystal structure described by Tm2Cu2O5 is Spinel-like structured and crystallizes in the orthorhombic Pna2_1 space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(5) atoms to form a mixture of distorted edge and corner-sharing TmO6 octahedra. The corner-sharing octahedral tilt angles range from 20-64°. In the second Tm site, Tm(2) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of edge and corner-sharing TmO6 octahedra. The corner-sharing octahedral tilt angles range from 20-64°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(5) atom. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded to one Tm(2), two equivalent Tm(1), and one Cu(1) atom to form OTm3Cu tetrahedra that share corners with two equivalent O(5)Tm3Cu tetrahedra, corners with four equivalent O(1)Tm3Cu tetrahedra, corners with three equivalent O(2)Tm2Cu2 trigonal pyramids, corners with three equivalent O(4)Tm2Cu2 trigonal pyramids, and  an edgeedge with one O(2)Tm2Cu2 trigonal pyramid. In the second O site, O(1) is bonded to one Tm(1), two equivalent Tm(2), and one Cu(2) atom to form OTm3Cu tetrahedra that share corners with two equivalent O(1)Tm3Cu tetrahedra, corners with four equivalent O(5)Tm3Cu tetrahedra, corners with three equivalent O(2)Tm2Cu2 trigonal pyramids, corners with three equivalent O(4)Tm2Cu2 trigonal pyramids, and  an edgeedge with one O(4)Tm2Cu2 trigonal pyramid. In the third O site, O(2) is bonded to two equivalent Tm(1), one Cu(1), and one Cu(2) atom to form distorted OTm2Cu2 trigonal pyramids that share corners with three equivalent O(1)Tm3Cu tetrahedra, corners with three equivalent O(5)Tm3Cu tetrahedra, corners with two equivalent O(2)Tm2Cu2 trigonal pyramids,  an edgeedge with one O(5)Tm3Cu tetrahedra, and  an edgeedge with one O(4)Tm2Cu2 trigonal pyramid. In the fourth O site, O(3) is bonded in a distorted see-saw-like geometry to one Tm(1), one Tm(2), one Cu(1), and one Cu(2) atom. In the fifth O site, O(4) is bonded to two equivalent Tm(2), one Cu(1), and one Cu(2) atom to form OTm2Cu2 trigonal pyramids that share corners with three equivalent O(1)Tm3Cu tetrahedra, corners with three equivalent O(5)Tm3Cu tetrahedra, corners with two equivalent O(4)Tm2Cu2 trigonal pyramids,  an edgeedge with one O(1)Tm3Cu tetrahedra, and  an edgeedge with one O(2)Tm2Cu2 trigonal pyramid. is represented by the CIF file [CIF]
data_Tm2Cu2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.459
_cell_length_b   10.818
_cell_length_c   12.434
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   465.288
_cell_formula_units_Z   4
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
  Tm  Tm0  1  0.276  0.542  0.830  1.0
  Tm  Tm1  1  0.724  0.458  0.330  1.0
  Tm  Tm2  1  0.224  0.042  0.830  1.0
  Tm  Tm3  1  0.776  0.958  0.330  1.0
  Tm  Tm4  1  0.278  0.708  0.502  1.0
  Tm  Tm5  1  0.722  0.292  0.002  1.0
  Tm  Tm6  1  0.222  0.208  0.502  1.0
  Tm  Tm7  1  0.778  0.792  0.002  1.0
  Cu  Cu8  1  0.845  0.762  0.719  1.0
  Cu  Cu9  1  0.155  0.238  0.219  1.0
  Cu  Cu10  1  0.655  0.262  0.719  1.0
  Cu  Cu11  1  0.345  0.738  0.219  1.0
  Cu  Cu12  1  0.840  0.489  0.612  1.0
  Cu  Cu13  1  0.160  0.511  0.112  1.0
  Cu  Cu14  1  0.660  0.989  0.612  1.0
  Cu  Cu15  1  0.340  0.011  0.112  1.0
  O  O16  1  0.272  0.922  0.972  1.0
  O  O17  1  0.728  0.078  0.472  1.0
  O  O18  1  0.228  0.422  0.972  1.0
  O  O19  1  0.772  0.578  0.472  1.0
  O  O20  1  0.724  0.929  0.764  1.0
  O  O21  1  0.276  0.071  0.264  1.0
  O  O22  1  0.776  0.429  0.764  1.0
  O  O23  1  0.224  0.571  0.264  1.0
  O  O24  1  0.166  0.625  0.666  1.0
  O  O25  1  0.834  0.375  0.166  1.0
  O  O26  1  0.334  0.125  0.666  1.0
  O  O27  1  0.666  0.875  0.166  1.0
  O  O28  1  0.781  0.821  0.566  1.0
  O  O29  1  0.219  0.179  0.066  1.0
  O  O30  1  0.719  0.321  0.566  1.0
  O  O31  1  0.281  0.679  0.066  1.0
  O  O32  1  0.276  0.828  0.359  1.0
  O  O33  1  0.724  0.172  0.859  1.0
  O  O34  1  0.224  0.328  0.359  1.0
  O  O35  1  0.776  0.672  0.859  1.0
[/CIF]
.