The crystal structure described by EuTi4SnO12 crystallizes in the orthorhombic Amm2 space group. Eu(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(1), and four equivalent O(5) atoms. Ti(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 18-45°. Sn(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Eu(1) and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Ti(1) and one Sn(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Eu(1) and two equivalent Ti(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ti(1) and one Sn(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Eu(1) and two equivalent Ti(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuTi4SnO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.382
_cell_length_b   5.382
_cell_length_c   7.788
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.023
_symmetry_Int_Tables_number   1
_cell_volume   225.615
_cell_formula_units_Z   1
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
  Eu  Eu0  1  0.488  0.488  0.500  1.0
  Ti  Ti1  1  0.500  0.000  0.747  1.0
  Ti  Ti2  1  0.500  0.000  0.253  1.0
  Ti  Ti3  1  0.000  0.500  0.253  1.0
  Ti  Ti4  1  0.000  0.500  0.747  1.0
  Sn  Sn5  1  0.018  0.018  0.000  1.0
  O  O6  1  0.705  0.298  0.734  1.0
  O  O7  1  0.298  0.705  0.734  1.0
  O  O8  1  0.298  0.705  0.266  1.0
  O  O9  1  0.705  0.298  0.266  1.0
  O  O10  1  0.822  0.822  0.819  1.0
  O  O11  1  0.226  0.226  0.715  1.0
  O  O12  1  0.226  0.226  0.285  1.0
  O  O13  1  0.822  0.822  0.181  1.0
  O  O14  1  0.394  0.999  0.000  1.0
  O  O15  1  0.541  0.954  0.500  1.0
  O  O16  1  0.999  0.394  0.000  1.0
  O  O17  1  0.954  0.541  0.500  1.0
[/CIF]
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The crystal structure described by EuTi4SnO12 crystallizes in the orthorhombic Amm2 space group. Eu(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(1), and four equivalent O(5) atoms. Ti(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 18-45°. Sn(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Eu(1) and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Ti(1) and one Sn(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Eu(1) and two equivalent Ti(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ti(1) and one Sn(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Eu(1) and two equivalent Ti(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuTi4SnO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.382
_cell_length_b   5.382
_cell_length_c   7.788
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.023
_symmetry_Int_Tables_number   1
_cell_volume   225.615
_cell_formula_units_Z   1
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
  Eu  Eu0  1  0.488  0.488  0.500  1.0
  Ti  Ti1  1  0.500  0.000  0.747  1.0
  Ti  Ti2  1  0.500  0.000  0.253  1.0
  Ti  Ti3  1  0.000  0.500  0.253  1.0
  Ti  Ti4  1  0.000  0.500  0.747  1.0
  Sn  Sn5  1  0.018  0.018  0.000  1.0
  O  O6  1  0.705  0.298  0.734  1.0
  O  O7  1  0.298  0.705  0.734  1.0
  O  O8  1  0.298  0.705  0.266  1.0
  O  O9  1  0.705  0.298  0.266  1.0
  O  O10  1  0.822  0.822  0.819  1.0
  O  O11  1  0.226  0.226  0.715  1.0
  O  O12  1  0.226  0.226  0.285  1.0
  O  O13  1  0.822  0.822  0.181  1.0
  O  O14  1  0.394  0.999  0.000  1.0
  O  O15  1  0.541  0.954  0.500  1.0
  O  O16  1  0.999  0.394  0.000  1.0
  O  O17  1  0.954  0.541  0.500  1.0
[/CIF]
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