The crystal structure described by SrLa3(NiO4)2 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(1), one O(4), and four equivalent O(5) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 6°. In the second Ni site, Ni(2) is bonded to one O(2), one O(3), and four equivalent O(5) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 6°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one La(1), two equivalent La(2), two equivalent La(3), and one Ni(1) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(4)Sr2La3Ni octahedra, corners with four equivalent O(1)La5Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(3)Sr2La3Ni octahedra, edges with two equivalent O(4)Sr2La3Ni octahedra, edges with four equivalent O(2)SrLa4Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-50°. In the second O site, O(2) is bonded to one Sr(1), two equivalent La(2), two equivalent La(3), and one Ni(2) atom to form distorted OSrLa4Ni octahedra that share  a cornercorner with one O(3)Sr2La3Ni octahedra, corners with four equivalent O(2)SrLa4Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(3)Sr2La3Ni octahedra, edges with two equivalent O(4)Sr2La3Ni octahedra, edges with four equivalent O(1)La5Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the third O site, O(3) is bonded to two equivalent Sr(1), one La(3), two equivalent La(1), and one Ni(2) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(2)SrLa4Ni octahedra, corners with four equivalent O(3)Sr2La3Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(1)La5Ni octahedra, edges with two equivalent O(2)SrLa4Ni octahedra, edges with four equivalent O(4)Sr2La3Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), one La(2), two equivalent La(1), and one Ni(1) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(1)La5Ni octahedra, corners with four equivalent O(4)Sr2La3Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(1)La5Ni octahedra, edges with two equivalent O(2)SrLa4Ni octahedra, edges with four equivalent O(3)Sr2La3Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-51°. In the fifth O site, O(5) is bonded to one Sr(1), one La(1), one La(2), one La(3), one Ni(1), and one Ni(2) atom to form distorted OSrLa3Ni2 octahedra that share corners with two equivalent O(5)SrLa3Ni2 octahedra, corners with three equivalent O(1)La5Ni octahedra, corners with three equivalent O(3)Sr2La3Ni octahedra, corners with three equivalent O(4)Sr2La3Ni octahedra, corners with three equivalent O(2)SrLa4Ni octahedra, edges with two equivalent O(5)SrLa3Ni2 octahedra,  a faceface with one O(1)La5Ni octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(4)Sr2La3Ni octahedra,  a faceface with one O(2)SrLa4Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 5-54°. is represented by the CIF card [CIF]
data_SrLa3(NiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.441
_cell_length_b   5.456
_cell_length_c   6.914
_cell_angle_alpha   89.992
_cell_angle_beta   66.828
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   188.676
_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  0.642  1.000  0.717  1.0
  La  La1  1  0.138  0.500  0.725  1.0
  La  La2  1  0.859  0.500  0.282  1.0
  La  La3  1  0.362  1.000  0.275  1.0
  Ni  Ni4  1  0.505  0.500  0.991  1.0
  Ni  Ni5  1  0.003  0.000  0.994  1.0
  O  O6  1  0.320  0.500  0.360  1.0
  O  O7  1  0.835  1.000  0.329  1.0
  O  O8  1  0.175  0.000  0.650  1.0
  O  O9  1  0.676  0.500  0.649  1.0
  O  O10  1  0.744  0.258  0.007  1.0
  O  O11  1  0.249  0.742  0.007  1.0
  O  O12  1  0.249  0.258  0.007  1.0
  O  O13  1  0.744  0.742  0.007  1.0
[/CIF]
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The crystal structure described by SrLa3(NiO4)2 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(1), one O(4), and four equivalent O(5) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 6°. In the second Ni site, Ni(2) is bonded to one O(2), one O(3), and four equivalent O(5) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 6°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one La(1), two equivalent La(2), two equivalent La(3), and one Ni(1) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(4)Sr2La3Ni octahedra, corners with four equivalent O(1)La5Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(3)Sr2La3Ni octahedra, edges with two equivalent O(4)Sr2La3Ni octahedra, edges with four equivalent O(2)SrLa4Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-50°. In the second O site, O(2) is bonded to one Sr(1), two equivalent La(2), two equivalent La(3), and one Ni(2) atom to form distorted OSrLa4Ni octahedra that share  a cornercorner with one O(3)Sr2La3Ni octahedra, corners with four equivalent O(2)SrLa4Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(3)Sr2La3Ni octahedra, edges with two equivalent O(4)Sr2La3Ni octahedra, edges with four equivalent O(1)La5Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the third O site, O(3) is bonded to two equivalent Sr(1), one La(3), two equivalent La(1), and one Ni(2) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(2)SrLa4Ni octahedra, corners with four equivalent O(3)Sr2La3Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(1)La5Ni octahedra, edges with two equivalent O(2)SrLa4Ni octahedra, edges with four equivalent O(4)Sr2La3Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), one La(2), two equivalent La(1), and one Ni(1) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(1)La5Ni octahedra, corners with four equivalent O(4)Sr2La3Ni octahedra, corners with twelve equivalent O(5)SrLa3Ni2 octahedra, edges with two equivalent O(1)La5Ni octahedra, edges with two equivalent O(2)SrLa4Ni octahedra, edges with four equivalent O(3)Sr2La3Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-51°. In the fifth O site, O(5) is bonded to one Sr(1), one La(1), one La(2), one La(3), one Ni(1), and one Ni(2) atom to form distorted OSrLa3Ni2 octahedra that share corners with two equivalent O(5)SrLa3Ni2 octahedra, corners with three equivalent O(1)La5Ni octahedra, corners with three equivalent O(3)Sr2La3Ni octahedra, corners with three equivalent O(4)Sr2La3Ni octahedra, corners with three equivalent O(2)SrLa4Ni octahedra, edges with two equivalent O(5)SrLa3Ni2 octahedra,  a faceface with one O(1)La5Ni octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(4)Sr2La3Ni octahedra,  a faceface with one O(2)SrLa4Ni octahedra, and faces with four equivalent O(5)SrLa3Ni2 octahedra. The corner-sharing octahedral tilt angles range from 5-54°. is represented by the CIF card [CIF]
data_SrLa3(NiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.441
_cell_length_b   5.456
_cell_length_c   6.914
_cell_angle_alpha   89.992
_cell_angle_beta   66.828
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   188.676
_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  0.642  1.000  0.717  1.0
  La  La1  1  0.138  0.500  0.725  1.0
  La  La2  1  0.859  0.500  0.282  1.0
  La  La3  1  0.362  1.000  0.275  1.0
  Ni  Ni4  1  0.505  0.500  0.991  1.0
  Ni  Ni5  1  0.003  0.000  0.994  1.0
  O  O6  1  0.320  0.500  0.360  1.0
  O  O7  1  0.835  1.000  0.329  1.0
  O  O8  1  0.175  0.000  0.650  1.0
  O  O9  1  0.676  0.500  0.649  1.0
  O  O10  1  0.744  0.258  0.007  1.0
  O  O11  1  0.249  0.742  0.007  1.0
  O  O12  1  0.249  0.258  0.007  1.0
  O  O13  1  0.744  0.742  0.007  1.0
[/CIF]
.