The material structure described by Nd2SiTeO4 crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 6-coordinate geometry to four equivalent Te(1), two equivalent O(2), and four equivalent O(1) atoms. In the second Nd site, Nd(2) is bonded in a 6-coordinate geometry to three equivalent Te(1), two equivalent O(1), and four equivalent O(2) atoms. Si(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. Te(1) is bonded in a 7-coordinate geometry to three equivalent Nd(2) and four equivalent Nd(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Nd(2), two equivalent Nd(1), and one Si(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Nd(1), two equivalent Nd(2), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd2SiTeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.316
_cell_length_b   7.193
_cell_length_c   11.213
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   509.423
_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
  Nd  Nd0  1  0.388  0.750  0.500  1.0
  Nd  Nd1  1  0.388  0.750  0.000  1.0
  Nd  Nd2  1  0.612  0.250  0.500  1.0
  Nd  Nd3  1  0.612  0.250  0.000  1.0
  Nd  Nd4  1  0.888  0.962  0.750  1.0
  Nd  Nd5  1  0.888  0.538  0.250  1.0
  Nd  Nd6  1  0.112  0.462  0.750  1.0
  Nd  Nd7  1  0.112  0.038  0.250  1.0
  Si  Si8  1  0.113  0.250  0.000  1.0
  Si  Si9  1  0.887  0.750  0.000  1.0
  Si  Si10  1  0.887  0.750  0.500  1.0
  Si  Si11  1  0.113  0.250  0.500  1.0
  Te  Te12  1  0.597  0.577  0.750  1.0
  Te  Te13  1  0.597  0.923  0.250  1.0
  Te  Te14  1  0.403  0.077  0.750  1.0
  Te  Te15  1  0.403  0.423  0.250  1.0
  O  O16  1  0.268  0.077  0.465  1.0
  O  O17  1  0.268  0.423  0.535  1.0
  O  O18  1  0.732  0.577  0.035  1.0
  O  O19  1  0.732  0.923  0.965  1.0
  O  O20  1  0.732  0.923  0.535  1.0
  O  O21  1  0.732  0.577  0.465  1.0
  O  O22  1  0.268  0.423  0.965  1.0
  O  O23  1  0.268  0.077  0.035  1.0
  O  O24  1  0.048  0.770  0.385  1.0
  O  O25  1  0.048  0.770  0.115  1.0
  O  O26  1  0.952  0.270  0.115  1.0
  O  O27  1  0.952  0.230  0.885  1.0
  O  O28  1  0.952  0.230  0.615  1.0
  O  O29  1  0.952  0.270  0.385  1.0
  O  O30  1  0.048  0.730  0.885  1.0
  O  O31  1  0.048  0.730  0.615  1.0
[/CIF]
.
The material structure described by Nd2SiTeO4 crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 6-coordinate geometry to four equivalent Te(1), two equivalent O(2), and four equivalent O(1) atoms. In the second Nd site, Nd(2) is bonded in a 6-coordinate geometry to three equivalent Te(1), two equivalent O(1), and four equivalent O(2) atoms. Si(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. Te(1) is bonded in a 7-coordinate geometry to three equivalent Nd(2) and four equivalent Nd(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Nd(2), two equivalent Nd(1), and one Si(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Nd(1), two equivalent Nd(2), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd2SiTeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.316
_cell_length_b   7.193
_cell_length_c   11.213
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   509.423
_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
  Nd  Nd0  1  0.388  0.750  0.500  1.0
  Nd  Nd1  1  0.388  0.750  0.000  1.0
  Nd  Nd2  1  0.612  0.250  0.500  1.0
  Nd  Nd3  1  0.612  0.250  0.000  1.0
  Nd  Nd4  1  0.888  0.962  0.750  1.0
  Nd  Nd5  1  0.888  0.538  0.250  1.0
  Nd  Nd6  1  0.112  0.462  0.750  1.0
  Nd  Nd7  1  0.112  0.038  0.250  1.0
  Si  Si8  1  0.113  0.250  0.000  1.0
  Si  Si9  1  0.887  0.750  0.000  1.0
  Si  Si10  1  0.887  0.750  0.500  1.0
  Si  Si11  1  0.113  0.250  0.500  1.0
  Te  Te12  1  0.597  0.577  0.750  1.0
  Te  Te13  1  0.597  0.923  0.250  1.0
  Te  Te14  1  0.403  0.077  0.750  1.0
  Te  Te15  1  0.403  0.423  0.250  1.0
  O  O16  1  0.268  0.077  0.465  1.0
  O  O17  1  0.268  0.423  0.535  1.0
  O  O18  1  0.732  0.577  0.035  1.0
  O  O19  1  0.732  0.923  0.965  1.0
  O  O20  1  0.732  0.923  0.535  1.0
  O  O21  1  0.732  0.577  0.465  1.0
  O  O22  1  0.268  0.423  0.965  1.0
  O  O23  1  0.268  0.077  0.035  1.0
  O  O24  1  0.048  0.770  0.385  1.0
  O  O25  1  0.048  0.770  0.115  1.0
  O  O26  1  0.952  0.270  0.115  1.0
  O  O27  1  0.952  0.230  0.885  1.0
  O  O28  1  0.952  0.230  0.615  1.0
  O  O29  1  0.952  0.270  0.385  1.0
  O  O30  1  0.048  0.730  0.885  1.0
  O  O31  1  0.048  0.730  0.615  1.0
[/CIF]
.