The structure described by SrLaMnFeO6 crystallizes in the monoclinic P2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(8), two equivalent O(3), two equivalent O(6), three equivalent O(4), and four equivalent O(1) atoms to form distorted SrO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with six equivalent Mn(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(7), two equivalent O(3), two equivalent O(6), three equivalent O(2), and four equivalent O(1) atoms to form distorted SrO12 cuboctahedra that share corners with two equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent La(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with six equivalent Mn(1)O6 octahedra. There are two inequivalent La sites. In the first La site, La(1) is bonded to one O(4), two equivalent O(3), two equivalent O(6), three equivalent O(8), and four equivalent O(5) atoms to form distorted LaO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with six equivalent Fe(1)O6 octahedra. In the second La site, La(2) is bonded in a 12-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(6), three equivalent O(7), and four equivalent O(5) atoms. Mn(1) is bonded to one O(2), one O(3), one O(4), one O(6), and two equivalent O(1) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 6-17°. Fe(1) is bonded to one O(3), one O(6), one O(7), one O(8), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, and faces with three equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 10-17°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to three equivalent Sr(2), one La(2), and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(2), one Mn(1), and one Fe(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to three equivalent Sr(1), one La(1), and two equivalent Mn(1) atoms. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Fe(1) atoms. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(2), one Mn(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sr(2), three equivalent La(2), and two equivalent Fe(1) atoms. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Sr(1), three equivalent La(1), and two equivalent Fe(1) atoms. is represented by the CIF file [CIF]
data_SrLaMnFeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.070
_cell_length_b   5.535
_cell_length_c   7.843
_cell_angle_alpha   89.554
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   480.502
_cell_formula_units_Z   4
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  0.379  0.750  0.500  1.0
  Sr  Sr1  1  0.619  0.250  0.000  1.0
  Sr  Sr2  1  0.381  0.750  0.000  1.0
  Sr  Sr3  1  0.621  0.250  0.500  1.0
  La  La4  1  0.873  0.750  0.500  1.0
  La  La5  1  0.131  0.250  0.000  1.0
  La  La6  1  0.869  0.750  0.000  1.0
  La  La7  1  0.127  0.250  0.500  1.0
  Mn  Mn8  1  0.377  0.252  0.751  1.0
  Mn  Mn9  1  0.623  0.748  0.249  1.0
  Mn  Mn10  1  0.377  0.248  0.249  1.0
  Mn  Mn11  1  0.623  0.752  0.751  1.0
  Fe  Fe12  1  0.873  0.248  0.749  1.0
  Fe  Fe13  1  0.127  0.752  0.251  1.0
  Fe  Fe14  1  0.873  0.252  0.251  1.0
  Fe  Fe15  1  0.127  0.748  0.749  1.0
  O  O16  1  0.509  0.017  0.267  1.0
  O  O17  1  0.386  0.250  0.000  1.0
  O  O18  1  0.509  0.483  0.733  1.0
  O  O19  1  0.762  0.531  0.768  1.0
  O  O20  1  0.491  0.517  0.267  1.0
  O  O21  1  0.650  0.750  0.500  1.0
  O  O22  1  0.614  0.750  0.000  1.0
  O  O23  1  0.762  0.969  0.232  1.0
  O  O24  1  0.491  0.983  0.733  1.0
  O  O25  1  0.012  0.028  0.274  1.0
  O  O26  1  0.743  0.006  0.771  1.0
  O  O27  1  0.900  0.250  0.000  1.0
  O  O28  1  0.857  0.250  0.500  1.0
  O  O29  1  0.012  0.472  0.726  1.0
  O  O30  1  0.743  0.494  0.229  1.0
  O  O31  1  0.257  0.506  0.771  1.0
  O  O32  1  0.988  0.528  0.274  1.0
  O  O33  1  0.143  0.750  0.500  1.0
  O  O34  1  0.100  0.750  0.000  1.0
  O  O35  1  0.257  0.994  0.229  1.0
  O  O36  1  0.988  0.972  0.726  1.0
  O  O37  1  0.238  0.031  0.768  1.0
  O  O38  1  0.350  0.250  0.500  1.0
  O  O39  1  0.238  0.469  0.232  1.0
[/CIF]
.
The structure described by SrLaMnFeO6 crystallizes in the monoclinic P2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(8), two equivalent O(3), two equivalent O(6), three equivalent O(4), and four equivalent O(1) atoms to form distorted SrO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with six equivalent Mn(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(7), two equivalent O(3), two equivalent O(6), three equivalent O(2), and four equivalent O(1) atoms to form distorted SrO12 cuboctahedra that share corners with two equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent La(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with six equivalent Mn(1)O6 octahedra. There are two inequivalent La sites. In the first La site, La(1) is bonded to one O(4), two equivalent O(3), two equivalent O(6), three equivalent O(8), and four equivalent O(5) atoms to form distorted LaO12 cuboctahedra that share corners with two equivalent Sr(1)O12 cuboctahedra, corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with six equivalent Fe(1)O6 octahedra. In the second La site, La(2) is bonded in a 12-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(6), three equivalent O(7), and four equivalent O(5) atoms. Mn(1) is bonded to one O(2), one O(3), one O(4), one O(6), and two equivalent O(1) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 6-17°. Fe(1) is bonded to one O(3), one O(6), one O(7), one O(8), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra, and faces with three equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 10-17°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to three equivalent Sr(2), one La(2), and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(2), one Mn(1), and one Fe(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to three equivalent Sr(1), one La(1), and two equivalent Mn(1) atoms. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Fe(1) atoms. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(2), one La(1), one La(2), one Mn(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sr(2), three equivalent La(2), and two equivalent Fe(1) atoms. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Sr(1), three equivalent La(1), and two equivalent Fe(1) atoms. is represented by the CIF file [CIF]
data_SrLaMnFeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.070
_cell_length_b   5.535
_cell_length_c   7.843
_cell_angle_alpha   89.554
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   480.502
_cell_formula_units_Z   4
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  0.379  0.750  0.500  1.0
  Sr  Sr1  1  0.619  0.250  0.000  1.0
  Sr  Sr2  1  0.381  0.750  0.000  1.0
  Sr  Sr3  1  0.621  0.250  0.500  1.0
  La  La4  1  0.873  0.750  0.500  1.0
  La  La5  1  0.131  0.250  0.000  1.0
  La  La6  1  0.869  0.750  0.000  1.0
  La  La7  1  0.127  0.250  0.500  1.0
  Mn  Mn8  1  0.377  0.252  0.751  1.0
  Mn  Mn9  1  0.623  0.748  0.249  1.0
  Mn  Mn10  1  0.377  0.248  0.249  1.0
  Mn  Mn11  1  0.623  0.752  0.751  1.0
  Fe  Fe12  1  0.873  0.248  0.749  1.0
  Fe  Fe13  1  0.127  0.752  0.251  1.0
  Fe  Fe14  1  0.873  0.252  0.251  1.0
  Fe  Fe15  1  0.127  0.748  0.749  1.0
  O  O16  1  0.509  0.017  0.267  1.0
  O  O17  1  0.386  0.250  0.000  1.0
  O  O18  1  0.509  0.483  0.733  1.0
  O  O19  1  0.762  0.531  0.768  1.0
  O  O20  1  0.491  0.517  0.267  1.0
  O  O21  1  0.650  0.750  0.500  1.0
  O  O22  1  0.614  0.750  0.000  1.0
  O  O23  1  0.762  0.969  0.232  1.0
  O  O24  1  0.491  0.983  0.733  1.0
  O  O25  1  0.012  0.028  0.274  1.0
  O  O26  1  0.743  0.006  0.771  1.0
  O  O27  1  0.900  0.250  0.000  1.0
  O  O28  1  0.857  0.250  0.500  1.0
  O  O29  1  0.012  0.472  0.726  1.0
  O  O30  1  0.743  0.494  0.229  1.0
  O  O31  1  0.257  0.506  0.771  1.0
  O  O32  1  0.988  0.528  0.274  1.0
  O  O33  1  0.143  0.750  0.500  1.0
  O  O34  1  0.100  0.750  0.000  1.0
  O  O35  1  0.257  0.994  0.229  1.0
  O  O36  1  0.988  0.972  0.726  1.0
  O  O37  1  0.238  0.031  0.768  1.0
  O  O38  1  0.350  0.250  0.500  1.0
  O  O39  1  0.238  0.469  0.232  1.0
[/CIF]
.