The material structure described by Sm2V2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Ima2 space group. Sm(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form VO6 octahedra that share corners with four equivalent V(1)O6 octahedra and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 29°. In the second V site, V(2) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form VO4 tetrahedra that share corners with two equivalent V(1)O6 octahedra and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sm(1) and two equivalent V(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Sm(1), one V(1), and one V(2) atom. In the third O site, O(3) is bonded to two equivalent Sm(1) and two equivalent V(2) atoms to form corner-sharing OSm2V2 tetrahedra. is represented by the CIF card [CIF]
data_Sm2V2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.795
_cell_length_b   8.795
_cell_length_c   8.795
_cell_angle_alpha   143.821
_cell_angle_beta   141.416
_cell_angle_gamma   53.923
_symmetry_Int_Tables_number   1
_cell_volume   248.849
_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
  Sm  Sm0  1  0.877  0.392  0.490  1.0
  Sm  Sm1  1  0.123  0.613  0.515  1.0
  Sm  Sm2  1  0.402  0.892  0.515  1.0
  Sm  Sm3  1  0.598  0.113  0.490  1.0
  V  V4  1  0.000  0.982  0.982  1.0
  V  V5  1  0.500  0.482  0.982  1.0
  V  V6  1  0.802  0.783  0.085  1.0
  V  V7  1  0.198  0.283  0.981  1.0
  O  O8  1  0.769  0.778  0.483  1.0
  O  O9  1  0.231  0.714  0.009  1.0
  O  O10  1  0.795  0.278  0.009  1.0
  O  O11  1  0.205  0.214  0.483  1.0
  O  O12  1  0.771  0.812  0.853  1.0
  O  O13  1  0.229  0.082  0.041  1.0
  O  O14  1  0.460  0.312  0.041  1.0
  O  O15  1  0.540  0.582  0.853  1.0
  O  O16  1  0.842  0.180  0.522  1.0
  O  O17  1  0.158  0.680  0.338  1.0
[/CIF]
.
The material structure described by Sm2V2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Ima2 space group. Sm(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form VO6 octahedra that share corners with four equivalent V(1)O6 octahedra and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 29°. In the second V site, V(2) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form VO4 tetrahedra that share corners with two equivalent V(1)O6 octahedra and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sm(1) and two equivalent V(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Sm(1), one V(1), and one V(2) atom. In the third O site, O(3) is bonded to two equivalent Sm(1) and two equivalent V(2) atoms to form corner-sharing OSm2V2 tetrahedra. is represented by the CIF card [CIF]
data_Sm2V2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.795
_cell_length_b   8.795
_cell_length_c   8.795
_cell_angle_alpha   143.821
_cell_angle_beta   141.416
_cell_angle_gamma   53.923
_symmetry_Int_Tables_number   1
_cell_volume   248.849
_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
  Sm  Sm0  1  0.877  0.392  0.490  1.0
  Sm  Sm1  1  0.123  0.613  0.515  1.0
  Sm  Sm2  1  0.402  0.892  0.515  1.0
  Sm  Sm3  1  0.598  0.113  0.490  1.0
  V  V4  1  0.000  0.982  0.982  1.0
  V  V5  1  0.500  0.482  0.982  1.0
  V  V6  1  0.802  0.783  0.085  1.0
  V  V7  1  0.198  0.283  0.981  1.0
  O  O8  1  0.769  0.778  0.483  1.0
  O  O9  1  0.231  0.714  0.009  1.0
  O  O10  1  0.795  0.278  0.009  1.0
  O  O11  1  0.205  0.214  0.483  1.0
  O  O12  1  0.771  0.812  0.853  1.0
  O  O13  1  0.229  0.082  0.041  1.0
  O  O14  1  0.460  0.312  0.041  1.0
  O  O15  1  0.540  0.582  0.853  1.0
  O  O16  1  0.842  0.180  0.522  1.0
  O  O17  1  0.158  0.680  0.338  1.0
[/CIF]
.