The material described by Tm2GeO5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 7-coordinate geometry to one O(3), three equivalent O(1), and three equivalent O(2) atoms. In the second Tm site, Tm(2) is bonded in a 7-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(4), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Tm(1) and one Ge(1) atom to form distorted OTm3Ge trigonal pyramids that share corners with two equivalent O(3)Tm3Ge tetrahedra, corners with five equivalent O(2)Tm4 tetrahedra, corners with four equivalent O(1)Tm3Ge trigonal pyramids,  an edgeedge with one O(3)Tm3Ge tetrahedra, edges with two equivalent O(2)Tm4 tetrahedra, and  an edgeedge with one O(1)Tm3Ge trigonal pyramid. In the second O site, O(2) is bonded to one Tm(2) and three equivalent Tm(1) atoms to form OTm4 tetrahedra that share  a cornercorner with one O(3)Tm3Ge tetrahedra, corners with four equivalent O(2)Tm4 tetrahedra, corners with five equivalent O(1)Tm3Ge trigonal pyramids,  an edgeedge with one O(2)Tm4 tetrahedra, edges with two equivalent O(3)Tm3Ge tetrahedra, and edges with two equivalent O(1)Tm3Ge trigonal pyramids. In the third O site, O(3) is bonded to one Tm(1), two equivalent Tm(2), and one Ge(1) atom to form distorted OTm3Ge tetrahedra that share  a cornercorner with one O(2)Tm4 tetrahedra, corners with two equivalent O(3)Tm3Ge tetrahedra, corners with two equivalent O(1)Tm3Ge trigonal pyramids, edges with two equivalent O(2)Tm4 tetrahedra, and  an edgeedge with one O(1)Tm3Ge trigonal pyramid. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Tm(2) and one Ge(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Tm(2) and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tm2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.942
_cell_length_b   6.689
_cell_length_c   9.219
_cell_angle_alpha   76.430
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   416.114
_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  0.872  0.271  0.029  1.0
  Tm  Tm1  1  0.628  0.771  0.029  1.0
  Tm  Tm2  1  0.863  0.469  0.360  1.0
  Tm  Tm3  1  0.637  0.969  0.360  1.0
  Tm  Tm4  1  0.363  0.031  0.640  1.0
  Tm  Tm5  1  0.137  0.531  0.640  1.0
  Tm  Tm6  1  0.372  0.229  0.971  1.0
  Tm  Tm7  1  0.128  0.729  0.971  1.0
  Ge  Ge8  1  0.405  0.478  0.301  1.0
  Ge  Ge9  1  0.095  0.978  0.301  1.0
  Ge  Ge10  1  0.905  0.022  0.699  1.0
  Ge  Ge11  1  0.595  0.522  0.699  1.0
  O  O12  1  0.139  0.010  0.105  1.0
  O  O13  1  0.613  0.074  0.109  1.0
  O  O14  1  0.361  0.510  0.105  1.0
  O  O15  1  0.887  0.574  0.109  1.0
  O  O16  1  0.915  0.181  0.281  1.0
  O  O17  1  0.306  0.015  0.392  1.0
  O  O18  1  0.585  0.681  0.281  1.0
  O  O19  1  0.571  0.288  0.390  1.0
  O  O20  1  0.194  0.515  0.392  1.0
  O  O21  1  0.929  0.788  0.390  1.0
  O  O22  1  0.071  0.212  0.610  1.0
  O  O23  1  0.806  0.485  0.608  1.0
  O  O24  1  0.429  0.712  0.610  1.0
  O  O25  1  0.415  0.319  0.719  1.0
  O  O26  1  0.694  0.985  0.608  1.0
  O  O27  1  0.085  0.819  0.719  1.0
  O  O28  1  0.113  0.426  0.891  1.0
  O  O29  1  0.639  0.490  0.895  1.0
  O  O30  1  0.387  0.926  0.891  1.0
  O  O31  1  0.861  0.990  0.895  1.0
[/CIF]
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The material described by Tm2GeO5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 7-coordinate geometry to one O(3), three equivalent O(1), and three equivalent O(2) atoms. In the second Tm site, Tm(2) is bonded in a 7-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(4), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Tm(1) and one Ge(1) atom to form distorted OTm3Ge trigonal pyramids that share corners with two equivalent O(3)Tm3Ge tetrahedra, corners with five equivalent O(2)Tm4 tetrahedra, corners with four equivalent O(1)Tm3Ge trigonal pyramids,  an edgeedge with one O(3)Tm3Ge tetrahedra, edges with two equivalent O(2)Tm4 tetrahedra, and  an edgeedge with one O(1)Tm3Ge trigonal pyramid. In the second O site, O(2) is bonded to one Tm(2) and three equivalent Tm(1) atoms to form OTm4 tetrahedra that share  a cornercorner with one O(3)Tm3Ge tetrahedra, corners with four equivalent O(2)Tm4 tetrahedra, corners with five equivalent O(1)Tm3Ge trigonal pyramids,  an edgeedge with one O(2)Tm4 tetrahedra, edges with two equivalent O(3)Tm3Ge tetrahedra, and edges with two equivalent O(1)Tm3Ge trigonal pyramids. In the third O site, O(3) is bonded to one Tm(1), two equivalent Tm(2), and one Ge(1) atom to form distorted OTm3Ge tetrahedra that share  a cornercorner with one O(2)Tm4 tetrahedra, corners with two equivalent O(3)Tm3Ge tetrahedra, corners with two equivalent O(1)Tm3Ge trigonal pyramids, edges with two equivalent O(2)Tm4 tetrahedra, and  an edgeedge with one O(1)Tm3Ge trigonal pyramid. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Tm(2) and one Ge(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Tm(2) and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tm2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.942
_cell_length_b   6.689
_cell_length_c   9.219
_cell_angle_alpha   76.430
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   416.114
_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  0.872  0.271  0.029  1.0
  Tm  Tm1  1  0.628  0.771  0.029  1.0
  Tm  Tm2  1  0.863  0.469  0.360  1.0
  Tm  Tm3  1  0.637  0.969  0.360  1.0
  Tm  Tm4  1  0.363  0.031  0.640  1.0
  Tm  Tm5  1  0.137  0.531  0.640  1.0
  Tm  Tm6  1  0.372  0.229  0.971  1.0
  Tm  Tm7  1  0.128  0.729  0.971  1.0
  Ge  Ge8  1  0.405  0.478  0.301  1.0
  Ge  Ge9  1  0.095  0.978  0.301  1.0
  Ge  Ge10  1  0.905  0.022  0.699  1.0
  Ge  Ge11  1  0.595  0.522  0.699  1.0
  O  O12  1  0.139  0.010  0.105  1.0
  O  O13  1  0.613  0.074  0.109  1.0
  O  O14  1  0.361  0.510  0.105  1.0
  O  O15  1  0.887  0.574  0.109  1.0
  O  O16  1  0.915  0.181  0.281  1.0
  O  O17  1  0.306  0.015  0.392  1.0
  O  O18  1  0.585  0.681  0.281  1.0
  O  O19  1  0.571  0.288  0.390  1.0
  O  O20  1  0.194  0.515  0.392  1.0
  O  O21  1  0.929  0.788  0.390  1.0
  O  O22  1  0.071  0.212  0.610  1.0
  O  O23  1  0.806  0.485  0.608  1.0
  O  O24  1  0.429  0.712  0.610  1.0
  O  O25  1  0.415  0.319  0.719  1.0
  O  O26  1  0.694  0.985  0.608  1.0
  O  O27  1  0.085  0.819  0.719  1.0
  O  O28  1  0.113  0.426  0.891  1.0
  O  O29  1  0.639  0.490  0.895  1.0
  O  O30  1  0.387  0.926  0.891  1.0
  O  O31  1  0.861  0.990  0.895  1.0
[/CIF]
.