The crystal structure described by LiSr2Ta2(NO2)2 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Fmm2 space group. Li(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1), one O(2), and two equivalent O(1) atoms. Sr(1) is bonded in a 12-coordinate geometry to one Li(1), four equivalent N(1), one O(2), two equivalent O(3), and four equivalent O(1) atoms. Ta(1) is bonded to two equivalent N(1), one O(2), one O(3), and two equivalent O(1) atoms to form corner-sharing TaN2O4 octahedra. The corner-sharing octahedral tilt angles range from 1-16°. N(1) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Ta(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), four equivalent Sr(1), and two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal bipyramidal geometry to one Li(1), two equivalent Sr(1), and two equivalent Ta(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and two equivalent Ta(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2LiTa2(NO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.875
_cell_length_b   5.887
_cell_length_c   5.887
_cell_angle_alpha   88.189
_cell_angle_beta   121.116
_cell_angle_gamma   121.119
_symmetry_Int_Tables_number   1
_cell_volume   141.325
_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  0.500  0.200  0.726  1.0
  Sr  Sr1  1  0.500  0.774  0.300  1.0
  Li  Li2  1  0.500  0.560  0.940  1.0
  Ta  Ta3  1  0.014  0.012  0.002  1.0
  Ta  Ta4  1  0.986  0.498  0.489  1.0
  N  N5  1  0.000  0.256  0.244  1.0
  N  N6  1  1.000  0.756  0.744  1.0
  O  O7  1  0.065  0.287  0.778  1.0
  O  O8  1  0.500  0.782  0.718  1.0
  O  O9  1  0.935  0.722  0.213  1.0
  O  O10  1  0.500  0.221  0.279  1.0
[/CIF]
.
The crystal structure described by LiSr2Ta2(NO2)2 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Fmm2 space group. Li(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1), one O(2), and two equivalent O(1) atoms. Sr(1) is bonded in a 12-coordinate geometry to one Li(1), four equivalent N(1), one O(2), two equivalent O(3), and four equivalent O(1) atoms. Ta(1) is bonded to two equivalent N(1), one O(2), one O(3), and two equivalent O(1) atoms to form corner-sharing TaN2O4 octahedra. The corner-sharing octahedral tilt angles range from 1-16°. N(1) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Ta(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), four equivalent Sr(1), and two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal bipyramidal geometry to one Li(1), two equivalent Sr(1), and two equivalent Ta(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and two equivalent Ta(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2LiTa2(NO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.875
_cell_length_b   5.887
_cell_length_c   5.887
_cell_angle_alpha   88.189
_cell_angle_beta   121.116
_cell_angle_gamma   121.119
_symmetry_Int_Tables_number   1
_cell_volume   141.325
_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  0.500  0.200  0.726  1.0
  Sr  Sr1  1  0.500  0.774  0.300  1.0
  Li  Li2  1  0.500  0.560  0.940  1.0
  Ta  Ta3  1  0.014  0.012  0.002  1.0
  Ta  Ta4  1  0.986  0.498  0.489  1.0
  N  N5  1  0.000  0.256  0.244  1.0
  N  N6  1  1.000  0.756  0.744  1.0
  O  O7  1  0.065  0.287  0.778  1.0
  O  O8  1  0.500  0.782  0.718  1.0
  O  O9  1  0.935  0.722  0.213  1.0
  O  O10  1  0.500  0.221  0.279  1.0
[/CIF]
.