The compound described by LiSr2LaTaO6 crystallizes in the monoclinic Cm space group. Li(1) is bonded in a distorted T-shaped geometry to one O(3) and two equivalent O(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. In the second Sr site, Sr(2) is bonded in a 3-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(4), and four equivalent O(2) atoms. La(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted LaO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-17°. Ta(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted TaO6 octahedra that share corners with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-17°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Li(1), one Sr(2), two equivalent Sr(1), one La(1), and one Ta(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(2), one La(1), and one Ta(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Li(1), one Sr(2), two equivalent Sr(1), one La(1), and one Ta(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(2), one La(1), and one Ta(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2LiLaTaO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.825
_cell_length_b   5.839
_cell_length_c   5.836
_cell_angle_alpha   59.984
_cell_angle_beta   64.675
_cell_angle_gamma   64.674
_symmetry_Int_Tables_number   1
_cell_volume   175.126
_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
  Sr  Sr0  1  0.867  0.711  0.710  1.0
  Sr  Sr1  1  0.097  0.301  0.301  1.0
  Li  Li2  1  0.615  0.128  0.129  1.0
  La  La3  1  0.500  0.500  0.501  1.0
  Ta  Ta4  1  0.032  0.989  0.990  1.0
  O  O5  1  0.797  0.749  0.229  1.0
  O  O6  1  0.194  0.268  0.769  1.0
  O  O7  1  0.796  0.226  0.751  1.0
  O  O8  1  0.195  0.769  0.268  1.0
  O  O9  1  0.194  0.769  0.769  1.0
  O  O10  1  0.797  0.225  0.229  1.0
[/CIF]
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The compound described by LiSr2LaTaO6 crystallizes in the monoclinic Cm space group. Li(1) is bonded in a distorted T-shaped geometry to one O(3) and two equivalent O(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. In the second Sr site, Sr(2) is bonded in a 3-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(4), and four equivalent O(2) atoms. La(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted LaO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-17°. Ta(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted TaO6 octahedra that share corners with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-17°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Li(1), one Sr(2), two equivalent Sr(1), one La(1), and one Ta(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(2), one La(1), and one Ta(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Li(1), one Sr(2), two equivalent Sr(1), one La(1), and one Ta(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(2), one La(1), and one Ta(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2LiLaTaO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.825
_cell_length_b   5.839
_cell_length_c   5.836
_cell_angle_alpha   59.984
_cell_angle_beta   64.675
_cell_angle_gamma   64.674
_symmetry_Int_Tables_number   1
_cell_volume   175.126
_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
  Sr  Sr0  1  0.867  0.711  0.710  1.0
  Sr  Sr1  1  0.097  0.301  0.301  1.0
  Li  Li2  1  0.615  0.128  0.129  1.0
  La  La3  1  0.500  0.500  0.501  1.0
  Ta  Ta4  1  0.032  0.989  0.990  1.0
  O  O5  1  0.797  0.749  0.229  1.0
  O  O6  1  0.194  0.268  0.769  1.0
  O  O7  1  0.796  0.226  0.751  1.0
  O  O8  1  0.195  0.769  0.268  1.0
  O  O9  1  0.194  0.769  0.769  1.0
  O  O10  1  0.797  0.225  0.229  1.0
[/CIF]
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