The material structure described by Sr2Nd2MnCuO8 is (La,Ba)CuO4-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), two equivalent O(6), two equivalent O(9), and three equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(6), one O(8), one O(9), two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one O(4), one O(8), one O(9), two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to two equivalent O(3), two equivalent O(4), two equivalent O(8), and three equivalent O(7) atoms. Mn(1) is bonded to one O(1), one O(2), one O(5), one O(6), and two equivalent O(9) atoms to form MnO6 octahedra that share  a cornercorner with one Cu(1)O6 octahedra and corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. Cu(1) is bonded to one O(1), one O(3), one O(4), one O(7), and two equivalent O(8) atoms to form CuO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra and corners with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. There are nine inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(2), two equivalent Nd(1), one Mn(1), and one Cu(1) atom to form distorted OSr2Nd2MnCu octahedra that share  a cornercorner with one O(3)Nd4Cu2 octahedra,  a cornercorner with one O(2)Sr4Mn2 octahedra, corners with two equivalent O(5)Sr5Mn octahedra, corners with four equivalent O(6)Sr3Nd2Mn octahedra, edges with two equivalent O(1)Sr2Nd2MnCu octahedra,  a faceface with one O(6)Sr3Nd2Mn octahedra,  a faceface with one O(5)Sr5Mn octahedra, faces with two equivalent O(9)Sr3NdMn2 octahedra, and faces with two equivalent O(8)SrNd3Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-57°. In the second O site, O(2) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(1)Sr2Nd2MnCu octahedra, corners with four equivalent O(6)Sr3Nd2Mn octahedra, corners with eight equivalent O(5)Sr5Mn octahedra, edges with two equivalent O(2)Sr4Mn2 octahedra, faces with two equivalent O(6)Sr3Nd2Mn octahedra, faces with two equivalent O(5)Sr5Mn octahedra, and faces with four equivalent O(9)Sr3NdMn2 octahedra. The corner-sharing octahedral tilt angles range from 2-58°. In the third O site, O(3) is bonded to four equivalent Nd(2) and two equivalent Cu(1) atoms to form distorted ONd4Cu2 octahedra that share corners with two equivalent O(1)Sr2Nd2MnCu octahedra, edges with two equivalent O(3)Nd4Cu2 octahedra, and faces with four equivalent O(8)SrNd3Cu2 octahedra. The corner-sharing octahedral tilt angles are 2°. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Sr(2), one Nd(1), two equivalent Nd(2), and one Cu(1) atom. In the fifth O site, O(5) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one Mn(1) atom to form distorted OSr5Mn octahedra that share corners with two equivalent O(1)Sr2Nd2MnCu octahedra, corners with two equivalent O(8)SrNd3Cu2 octahedra, corners with three equivalent O(6)Sr3Nd2Mn octahedra, corners with four equivalent O(9)Sr3NdMn2 octahedra, corners with four equivalent O(2)Sr4Mn2 octahedra, edges with three equivalent O(6)Sr3Nd2Mn octahedra, edges with four equivalent O(5)Sr5Mn octahedra,  a faceface with one O(1)Sr2Nd2MnCu octahedra,  a faceface with one O(2)Sr4Mn2 octahedra, and faces with two equivalent O(9)Sr3NdMn2 octahedra. The corner-sharing octahedral tilt angles range from 4-57°. In the sixth O site, O(6) is bonded to one Sr(2), two equivalent Sr(1), two equivalent Nd(1), and one Mn(1) atom to form distorted OSr3Nd2Mn octahedra that share corners with two equivalent O(2)Sr4Mn2 octahedra, corners with three equivalent O(9)Sr3NdMn2 octahedra, corners with three equivalent O(5)Sr5Mn octahedra, corners with three equivalent O(8)SrNd3Cu2 octahedra, corners with four equivalent O(1)Sr2Nd2MnCu octahedra, edges with two equivalent O(6)Sr3Nd2Mn octahedra, edges with three equivalent O(5)Sr5Mn octahedra,  a faceface with one O(1)Sr2Nd2MnCu octahedra,  a faceface with one O(2)Sr4Mn2 octahedra, and faces with two equivalent O(9)Sr3NdMn2 octahedra. The corner-sharing octahedral tilt angles range from 4-58°. In the seventh O site, O(7) is bonded in a 6-coordinate geometry to two equivalent Nd(1), three equivalent Nd(2), and one Cu(1) atom. In the eighth O site, O(8) is bonded to one Sr(2), one Nd(1), two equivalent Nd(2), and two equivalent Cu(1) atoms to form distorted OSrNd3Cu2 octahedra that share corners with two equivalent O(5)Sr5Mn octahedra, corners with two equivalent O(8)SrNd3Cu2 octahedra, corners with three equivalent O(6)Sr3Nd2Mn octahedra,  an edgeedge with one O(9)Sr3NdMn2 octahedra,  an edgeedge with one O(8)SrNd3Cu2 octahedra, faces with two equivalent O(3)Nd4Cu2 octahedra, and faces with two equivalent O(1)Sr2Nd2MnCu octahedra. The corner-sharing octahedral tilt angles range from 5-57°. In the ninth O site, O(9) is bonded to one Sr(2), two equivalent Sr(1), one Nd(1), and two equivalent Mn(1) atoms to form distorted OSr3NdMn2 octahedra that share corners with two equivalent O(9)Sr3NdMn2 octahedra, corners with three equivalent O(6)Sr3Nd2Mn octahedra, corners with four equivalent O(5)Sr5Mn octahedra,  an edgeedge with one O(9)Sr3NdMn2 octahedra,  an edgeedge with one O(8)SrNd3Cu2 octahedra, faces with two equivalent O(1)Sr2Nd2MnCu octahedra, faces with two equivalent O(6)Sr3Nd2Mn octahedra, faces with two equivalent O(2)Sr4Mn2 octahedra, and faces with two equivalent O(5)Sr5Mn octahedra. The corner-sharing octahedral tilt angles range from 5-55°. is represented by the CIF file [CIF]
data_Sr2Nd2MnCuO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.837
_cell_length_b   15.325
_cell_length_c   6.937
_cell_angle_alpha   106.641
_cell_angle_beta   106.150
_cell_angle_gamma   89.977
_symmetry_Int_Tables_number   1
_cell_volume   373.979
_cell_formula_units_Z   2
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  0.358  0.340  0.715  1.0
  Sr  Sr1  1  0.355  0.592  0.711  1.0
  Sr  Sr2  1  0.645  0.158  0.289  1.0
  Sr  Sr3  1  0.642  0.410  0.285  1.0
  Nd  Nd4  1  0.366  0.086  0.728  1.0
  Nd  Nd5  1  0.352  0.838  0.720  1.0
  Nd  Nd6  1  0.634  0.664  0.272  1.0
  Nd  Nd7  1  0.648  0.912  0.281  1.0
  Mn  Mn8  1  0.003  0.249  0.001  1.0
  Mn  Mn9  1  0.997  0.501  0.999  1.0
  Cu  Cu10  1  0.003  0.998  0.002  1.0
  Cu  Cu11  1  0.997  0.752  0.998  1.0
  O  O12  1  0.996  0.121  0.991  1.0
  O  O13  1  1.000  0.375  1.000  1.0
  O  O14  1  0.004  0.629  0.009  1.0
  O  O15  1  0.000  0.875  0.000  1.0
  O  O16  1  0.187  0.031  0.364  1.0
  O  O17  1  0.162  0.287  0.316  1.0
  O  O18  1  0.158  0.551  0.320  1.0
  O  O19  1  0.165  0.797  0.357  1.0
  O  O20  1  0.498  0.994  0.991  1.0
  O  O21  1  0.496  0.244  0.990  1.0
  O  O22  1  0.504  0.506  0.010  1.0
  O  O23  1  0.502  0.756  0.009  1.0
  O  O24  1  0.842  0.199  0.680  1.0
  O  O25  1  0.838  0.463  0.684  1.0
  O  O26  1  0.813  0.719  0.636  1.0
  O  O27  1  0.835  0.953  0.643  1.0
[/CIF]
.
The material structure described by Sr2Nd2MnCuO8 is (La,Ba)CuO4-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), two equivalent O(6), two equivalent O(9), and three equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(6), one O(8), one O(9), two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one O(4), one O(8), one O(9), two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to two equivalent O(3), two equivalent O(4), two equivalent O(8), and three equivalent O(7) atoms. Mn(1) is bonded to one O(1), one O(2), one O(5), one O(6), and two equivalent O(9) atoms to form MnO6 octahedra that share  a cornercorner with one Cu(1)O6 octahedra and corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. Cu(1) is bonded to one O(1), one O(3), one O(4), one O(7), and two equivalent O(8) atoms to form CuO6 octahedra that share  a cornercorner with one Mn(1)O6 octahedra and corners with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. There are nine inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(2), two equivalent Nd(1), one Mn(1), and one Cu(1) atom to form distorted OSr2Nd2MnCu octahedra that share  a cornercorner with one O(3)Nd4Cu2 octahedra,  a cornercorner with one O(2)Sr4Mn2 octahedra, corners with two equivalent O(5)Sr5Mn octahedra, corners with four equivalent O(6)Sr3Nd2Mn octahedra, edges with two equivalent O(1)Sr2Nd2MnCu octahedra,  a faceface with one O(6)Sr3Nd2Mn octahedra,  a faceface with one O(5)Sr5Mn octahedra, faces with two equivalent O(9)Sr3NdMn2 octahedra, and faces with two equivalent O(8)SrNd3Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-57°. In the second O site, O(2) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form distorted OSr4Mn2 octahedra that share corners with two equivalent O(1)Sr2Nd2MnCu octahedra, corners with four equivalent O(6)Sr3Nd2Mn octahedra, corners with eight equivalent O(5)Sr5Mn octahedra, edges with two equivalent O(2)Sr4Mn2 octahedra, faces with two equivalent O(6)Sr3Nd2Mn octahedra, faces with two equivalent O(5)Sr5Mn octahedra, and faces with four equivalent O(9)Sr3NdMn2 octahedra. The corner-sharing octahedral tilt angles range from 2-58°. In the third O site, O(3) is bonded to four equivalent Nd(2) and two equivalent Cu(1) atoms to form distorted ONd4Cu2 octahedra that share corners with two equivalent O(1)Sr2Nd2MnCu octahedra, edges with two equivalent O(3)Nd4Cu2 octahedra, and faces with four equivalent O(8)SrNd3Cu2 octahedra. The corner-sharing octahedral tilt angles are 2°. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Sr(2), one Nd(1), two equivalent Nd(2), and one Cu(1) atom. In the fifth O site, O(5) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one Mn(1) atom to form distorted OSr5Mn octahedra that share corners with two equivalent O(1)Sr2Nd2MnCu octahedra, corners with two equivalent O(8)SrNd3Cu2 octahedra, corners with three equivalent O(6)Sr3Nd2Mn octahedra, corners with four equivalent O(9)Sr3NdMn2 octahedra, corners with four equivalent O(2)Sr4Mn2 octahedra, edges with three equivalent O(6)Sr3Nd2Mn octahedra, edges with four equivalent O(5)Sr5Mn octahedra,  a faceface with one O(1)Sr2Nd2MnCu octahedra,  a faceface with one O(2)Sr4Mn2 octahedra, and faces with two equivalent O(9)Sr3NdMn2 octahedra. The corner-sharing octahedral tilt angles range from 4-57°. In the sixth O site, O(6) is bonded to one Sr(2), two equivalent Sr(1), two equivalent Nd(1), and one Mn(1) atom to form distorted OSr3Nd2Mn octahedra that share corners with two equivalent O(2)Sr4Mn2 octahedra, corners with three equivalent O(9)Sr3NdMn2 octahedra, corners with three equivalent O(5)Sr5Mn octahedra, corners with three equivalent O(8)SrNd3Cu2 octahedra, corners with four equivalent O(1)Sr2Nd2MnCu octahedra, edges with two equivalent O(6)Sr3Nd2Mn octahedra, edges with three equivalent O(5)Sr5Mn octahedra,  a faceface with one O(1)Sr2Nd2MnCu octahedra,  a faceface with one O(2)Sr4Mn2 octahedra, and faces with two equivalent O(9)Sr3NdMn2 octahedra. The corner-sharing octahedral tilt angles range from 4-58°. In the seventh O site, O(7) is bonded in a 6-coordinate geometry to two equivalent Nd(1), three equivalent Nd(2), and one Cu(1) atom. In the eighth O site, O(8) is bonded to one Sr(2), one Nd(1), two equivalent Nd(2), and two equivalent Cu(1) atoms to form distorted OSrNd3Cu2 octahedra that share corners with two equivalent O(5)Sr5Mn octahedra, corners with two equivalent O(8)SrNd3Cu2 octahedra, corners with three equivalent O(6)Sr3Nd2Mn octahedra,  an edgeedge with one O(9)Sr3NdMn2 octahedra,  an edgeedge with one O(8)SrNd3Cu2 octahedra, faces with two equivalent O(3)Nd4Cu2 octahedra, and faces with two equivalent O(1)Sr2Nd2MnCu octahedra. The corner-sharing octahedral tilt angles range from 5-57°. In the ninth O site, O(9) is bonded to one Sr(2), two equivalent Sr(1), one Nd(1), and two equivalent Mn(1) atoms to form distorted OSr3NdMn2 octahedra that share corners with two equivalent O(9)Sr3NdMn2 octahedra, corners with three equivalent O(6)Sr3Nd2Mn octahedra, corners with four equivalent O(5)Sr5Mn octahedra,  an edgeedge with one O(9)Sr3NdMn2 octahedra,  an edgeedge with one O(8)SrNd3Cu2 octahedra, faces with two equivalent O(1)Sr2Nd2MnCu octahedra, faces with two equivalent O(6)Sr3Nd2Mn octahedra, faces with two equivalent O(2)Sr4Mn2 octahedra, and faces with two equivalent O(5)Sr5Mn octahedra. The corner-sharing octahedral tilt angles range from 5-55°. is represented by the CIF file [CIF]
data_Sr2Nd2MnCuO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.837
_cell_length_b   15.325
_cell_length_c   6.937
_cell_angle_alpha   106.641
_cell_angle_beta   106.150
_cell_angle_gamma   89.977
_symmetry_Int_Tables_number   1
_cell_volume   373.979
_cell_formula_units_Z   2
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  0.358  0.340  0.715  1.0
  Sr  Sr1  1  0.355  0.592  0.711  1.0
  Sr  Sr2  1  0.645  0.158  0.289  1.0
  Sr  Sr3  1  0.642  0.410  0.285  1.0
  Nd  Nd4  1  0.366  0.086  0.728  1.0
  Nd  Nd5  1  0.352  0.838  0.720  1.0
  Nd  Nd6  1  0.634  0.664  0.272  1.0
  Nd  Nd7  1  0.648  0.912  0.281  1.0
  Mn  Mn8  1  0.003  0.249  0.001  1.0
  Mn  Mn9  1  0.997  0.501  0.999  1.0
  Cu  Cu10  1  0.003  0.998  0.002  1.0
  Cu  Cu11  1  0.997  0.752  0.998  1.0
  O  O12  1  0.996  0.121  0.991  1.0
  O  O13  1  1.000  0.375  1.000  1.0
  O  O14  1  0.004  0.629  0.009  1.0
  O  O15  1  0.000  0.875  0.000  1.0
  O  O16  1  0.187  0.031  0.364  1.0
  O  O17  1  0.162  0.287  0.316  1.0
  O  O18  1  0.158  0.551  0.320  1.0
  O  O19  1  0.165  0.797  0.357  1.0
  O  O20  1  0.498  0.994  0.991  1.0
  O  O21  1  0.496  0.244  0.990  1.0
  O  O22  1  0.504  0.506  0.010  1.0
  O  O23  1  0.502  0.756  0.009  1.0
  O  O24  1  0.842  0.199  0.680  1.0
  O  O25  1  0.838  0.463  0.684  1.0
  O  O26  1  0.813  0.719  0.636  1.0
  O  O27  1  0.835  0.953  0.643  1.0
[/CIF]
.