The compound described by Tm(AsO)2 crystallizes in the tetragonal I4_1/amd space group. Tm(1) is bonded in a distorted linear geometry to four equivalent As(1) and two equivalent O(1) atoms. As(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Tm(1) and one O(1) atom. O(1) is bonded in a bent 150 degrees geometry to one Tm(1) and one As(1) atom. is represented by the CIF file [CIF]
data_Tm(AsO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.225
_cell_length_b   10.225
_cell_length_c   10.225
_cell_angle_alpha   124.614
_cell_angle_beta   124.614
_cell_angle_gamma   82.178
_symmetry_Int_Tables_number   1
_cell_volume   696.061
_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  0.875  0.125  0.750  1.0
  Tm  Tm1  1  0.375  0.125  0.250  1.0
  Tm  Tm2  1  0.875  0.625  0.750  1.0
  Tm  Tm3  1  0.875  0.125  0.250  1.0
  As  As4  1  0.695  0.366  0.329  1.0
  As  As5  1  0.038  0.366  0.671  1.0
  As  As6  1  0.116  0.288  0.171  1.0
  As  As7  1  0.712  0.884  0.829  1.0
  As  As8  1  0.055  0.884  0.171  1.0
  As  As9  1  0.116  0.945  0.829  1.0
  As  As10  1  0.634  0.962  0.329  1.0
  As  As11  1  0.634  0.305  0.671  1.0
  O  O12  1  0.517  0.261  0.256  1.0
  O  O13  1  0.006  0.261  0.744  1.0
  O  O14  1  0.011  0.256  0.244  1.0
  O  O15  1  0.744  0.989  0.756  1.0
  O  O16  1  0.233  0.989  0.244  1.0
  O  O17  1  0.011  0.767  0.756  1.0
  O  O18  1  0.739  0.994  0.256  1.0
  O  O19  1  0.739  0.483  0.744  1.0
[/CIF]
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The compound described by Tm(AsO)2 crystallizes in the tetragonal I4_1/amd space group. Tm(1) is bonded in a distorted linear geometry to four equivalent As(1) and two equivalent O(1) atoms. As(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Tm(1) and one O(1) atom. O(1) is bonded in a bent 150 degrees geometry to one Tm(1) and one As(1) atom. is represented by the CIF file [CIF]
data_Tm(AsO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.225
_cell_length_b   10.225
_cell_length_c   10.225
_cell_angle_alpha   124.614
_cell_angle_beta   124.614
_cell_angle_gamma   82.178
_symmetry_Int_Tables_number   1
_cell_volume   696.061
_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  0.875  0.125  0.750  1.0
  Tm  Tm1  1  0.375  0.125  0.250  1.0
  Tm  Tm2  1  0.875  0.625  0.750  1.0
  Tm  Tm3  1  0.875  0.125  0.250  1.0
  As  As4  1  0.695  0.366  0.329  1.0
  As  As5  1  0.038  0.366  0.671  1.0
  As  As6  1  0.116  0.288  0.171  1.0
  As  As7  1  0.712  0.884  0.829  1.0
  As  As8  1  0.055  0.884  0.171  1.0
  As  As9  1  0.116  0.945  0.829  1.0
  As  As10  1  0.634  0.962  0.329  1.0
  As  As11  1  0.634  0.305  0.671  1.0
  O  O12  1  0.517  0.261  0.256  1.0
  O  O13  1  0.006  0.261  0.744  1.0
  O  O14  1  0.011  0.256  0.244  1.0
  O  O15  1  0.744  0.989  0.756  1.0
  O  O16  1  0.233  0.989  0.244  1.0
  O  O17  1  0.011  0.767  0.756  1.0
  O  O18  1  0.739  0.994  0.256  1.0
  O  O19  1  0.739  0.483  0.744  1.0
[/CIF]
.