The structure described by TmNbO4 crystallizes in the monoclinic C2/c space group. Tm(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Nb(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Tm(1) and one Nb(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Tm(1) and two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_TmNbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.078
_cell_length_b   5.232
_cell_length_c   6.468
_cell_angle_alpha   112.189
_cell_angle_beta   111.405
_cell_angle_gamma   93.911
_symmetry_Int_Tables_number   1
_cell_volume   143.832
_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
  Tm  Tm0  1  0.122  0.872  0.244  1.0
  Tm  Tm1  1  0.878  0.128  0.756  1.0
  Nb  Nb2  1  0.359  0.609  0.719  1.0
  Nb  Nb3  1  0.641  0.391  0.281  1.0
  O  O4  1  0.284  0.120  0.074  1.0
  O  O5  1  0.716  0.880  0.926  1.0
  O  O6  1  0.790  0.454  0.074  1.0
  O  O7  1  0.509  0.720  0.437  1.0
  O  O8  1  0.491  0.280  0.563  1.0
  O  O9  1  0.210  0.546  0.926  1.0
  O  O10  1  0.072  0.783  0.563  1.0
  O  O11  1  0.928  0.217  0.437  1.0
[/CIF]
.
The structure described by TmNbO4 crystallizes in the monoclinic C2/c space group. Tm(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Nb(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Tm(1) and one Nb(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Tm(1) and two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_TmNbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.078
_cell_length_b   5.232
_cell_length_c   6.468
_cell_angle_alpha   112.189
_cell_angle_beta   111.405
_cell_angle_gamma   93.911
_symmetry_Int_Tables_number   1
_cell_volume   143.832
_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
  Tm  Tm0  1  0.122  0.872  0.244  1.0
  Tm  Tm1  1  0.878  0.128  0.756  1.0
  Nb  Nb2  1  0.359  0.609  0.719  1.0
  Nb  Nb3  1  0.641  0.391  0.281  1.0
  O  O4  1  0.284  0.120  0.074  1.0
  O  O5  1  0.716  0.880  0.926  1.0
  O  O6  1  0.790  0.454  0.074  1.0
  O  O7  1  0.509  0.720  0.437  1.0
  O  O8  1  0.491  0.280  0.563  1.0
  O  O9  1  0.210  0.546  0.926  1.0
  O  O10  1  0.072  0.783  0.563  1.0
  O  O11  1  0.928  0.217  0.437  1.0
[/CIF]
.