The compound described by Ba2MgNd2Co4O11 crystallizes in the orthorhombic Pmm2 space group. Ba(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), two equivalent O(1), and two equivalent O(9) atoms. Mg(1) is bonded in a distorted square co-planar geometry to one O(5), one O(6), and two equivalent O(7) atoms. Nd(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(8) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(7), two equivalent O(1), and two equivalent O(5) atoms to form distorted corner-sharing CoO5 trigonal bipyramids. In the second Co site, Co(2) is bonded to one O(7), two equivalent O(2), and two equivalent O(6) atoms to form distorted CoO5 square pyramids that share corners with two equivalent Co(3)O6 octahedra, corners with two equivalent Co(2)O5 square pyramids, and  a cornercorner with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 4°. In the third Co site, Co(3) is bonded to one O(8), one O(9), two equivalent O(2), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with two equivalent Co(3)O6 octahedra and corners with two equivalent Co(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 5°. In the fourth Co site, Co(4) is bonded in a square co-planar geometry to one O(8), one O(9), and two equivalent O(3) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to two equivalent Ba(1), two equivalent Nd(1), and one Co(1) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to two equivalent Nd(1), one Co(2), and one Co(3) atom. In the third O site, O(3) is bonded to two equivalent Ba(1), two equivalent Nd(1), and two equivalent Co(4) atoms to form distorted OBa2Nd2Co2 octahedra that share corners with two equivalent O(3)Ba2Nd2Co2 octahedra, corners with two equivalent O(6)Nd2MgCo2 trigonal bipyramids, edges with two equivalent O(4)Ba2Nd2Co2 octahedra, and faces with two equivalent O(9)Ba4Co2 octahedra. The corner-sharing octahedral tilt angles are 6°. In the fourth O site, O(4) is bonded to two equivalent Ba(1), two equivalent Nd(1), and two equivalent Co(3) atoms to form distorted OBa2Nd2Co2 octahedra that share corners with two equivalent O(4)Ba2Nd2Co2 octahedra, corners with two equivalent O(6)Nd2MgCo2 trigonal bipyramids, edges with two equivalent O(3)Ba2Nd2Co2 octahedra, and faces with two equivalent O(9)Ba4Co2 octahedra. The corner-sharing octahedral tilt angles are 5°. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Mg(1), and two equivalent Co(1) atoms. In the sixth O site, O(6) is bonded to one Mg(1), two equivalent Nd(1), and two equivalent Co(2) atoms to form distorted ONd2MgCo2 trigonal bipyramids that share corners with two equivalent O(3)Ba2Nd2Co2 octahedra, corners with two equivalent O(4)Ba2Nd2Co2 octahedra, and corners with two equivalent O(6)Nd2MgCo2 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-60°. In the seventh O site, O(7) is bonded in a distorted square co-planar geometry to two equivalent Mg(1), one Co(1), and one Co(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to four equivalent Nd(1), one Co(3), and one Co(4) atom. In the ninth O site, O(9) is bonded to four equivalent Ba(1), one Co(3), and one Co(4) atom to form OBa4Co2 octahedra that share edges with two equivalent O(9)Ba4Co2 octahedra, faces with two equivalent O(3)Ba2Nd2Co2 octahedra, and faces with two equivalent O(4)Ba2Nd2Co2 octahedra. is represented by the CIF card [CIF]
data_Ba2Nd2MgCo4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.891
_cell_length_b   7.786
_cell_length_c   8.943
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   270.926
_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
  Ba  Ba0  1  0.500  0.050  0.707  1.0
  Ba  Ba1  1  0.500  0.050  0.293  1.0
  Nd  Nd2  1  0.500  0.535  0.285  1.0
  Nd  Nd3  1  0.500  0.535  0.715  1.0
  Mg  Mg4  1  0.500  0.903  0.000  1.0
  Co  Co5  1  0.000  0.220  0.000  1.0
  Co  Co6  1  0.000  0.675  0.000  1.0
  Co  Co7  1  0.000  0.770  0.500  1.0
  Co  Co8  1  0.000  0.284  0.500  1.0
  O  O9  1  0.000  0.314  0.805  1.0
  O  O10  1  0.000  0.709  0.237  1.0
  O  O11  1  0.000  0.314  0.195  1.0
  O  O12  1  0.000  0.709  0.763  1.0
  O  O13  1  0.500  0.298  0.500  1.0
  O  O14  1  0.500  0.758  0.500  1.0
  O  O15  1  0.500  0.169  0.000  1.0
  O  O16  1  0.500  0.643  0.000  1.0
  O  O17  1  0.000  0.955  0.000  1.0
  O  O18  1  0.000  0.517  0.500  1.0
  O  O19  1  0.000  0.041  0.500  1.0
[/CIF]
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The compound described by Ba2MgNd2Co4O11 crystallizes in the orthorhombic Pmm2 space group. Ba(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), two equivalent O(1), and two equivalent O(9) atoms. Mg(1) is bonded in a distorted square co-planar geometry to one O(5), one O(6), and two equivalent O(7) atoms. Nd(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(8) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(7), two equivalent O(1), and two equivalent O(5) atoms to form distorted corner-sharing CoO5 trigonal bipyramids. In the second Co site, Co(2) is bonded to one O(7), two equivalent O(2), and two equivalent O(6) atoms to form distorted CoO5 square pyramids that share corners with two equivalent Co(3)O6 octahedra, corners with two equivalent Co(2)O5 square pyramids, and  a cornercorner with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 4°. In the third Co site, Co(3) is bonded to one O(8), one O(9), two equivalent O(2), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with two equivalent Co(3)O6 octahedra and corners with two equivalent Co(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 5°. In the fourth Co site, Co(4) is bonded in a square co-planar geometry to one O(8), one O(9), and two equivalent O(3) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to two equivalent Ba(1), two equivalent Nd(1), and one Co(1) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to two equivalent Nd(1), one Co(2), and one Co(3) atom. In the third O site, O(3) is bonded to two equivalent Ba(1), two equivalent Nd(1), and two equivalent Co(4) atoms to form distorted OBa2Nd2Co2 octahedra that share corners with two equivalent O(3)Ba2Nd2Co2 octahedra, corners with two equivalent O(6)Nd2MgCo2 trigonal bipyramids, edges with two equivalent O(4)Ba2Nd2Co2 octahedra, and faces with two equivalent O(9)Ba4Co2 octahedra. The corner-sharing octahedral tilt angles are 6°. In the fourth O site, O(4) is bonded to two equivalent Ba(1), two equivalent Nd(1), and two equivalent Co(3) atoms to form distorted OBa2Nd2Co2 octahedra that share corners with two equivalent O(4)Ba2Nd2Co2 octahedra, corners with two equivalent O(6)Nd2MgCo2 trigonal bipyramids, edges with two equivalent O(3)Ba2Nd2Co2 octahedra, and faces with two equivalent O(9)Ba4Co2 octahedra. The corner-sharing octahedral tilt angles are 5°. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Mg(1), and two equivalent Co(1) atoms. In the sixth O site, O(6) is bonded to one Mg(1), two equivalent Nd(1), and two equivalent Co(2) atoms to form distorted ONd2MgCo2 trigonal bipyramids that share corners with two equivalent O(3)Ba2Nd2Co2 octahedra, corners with two equivalent O(4)Ba2Nd2Co2 octahedra, and corners with two equivalent O(6)Nd2MgCo2 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-60°. In the seventh O site, O(7) is bonded in a distorted square co-planar geometry to two equivalent Mg(1), one Co(1), and one Co(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to four equivalent Nd(1), one Co(3), and one Co(4) atom. In the ninth O site, O(9) is bonded to four equivalent Ba(1), one Co(3), and one Co(4) atom to form OBa4Co2 octahedra that share edges with two equivalent O(9)Ba4Co2 octahedra, faces with two equivalent O(3)Ba2Nd2Co2 octahedra, and faces with two equivalent O(4)Ba2Nd2Co2 octahedra. is represented by the CIF card [CIF]
data_Ba2Nd2MgCo4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.891
_cell_length_b   7.786
_cell_length_c   8.943
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   270.926
_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
  Ba  Ba0  1  0.500  0.050  0.707  1.0
  Ba  Ba1  1  0.500  0.050  0.293  1.0
  Nd  Nd2  1  0.500  0.535  0.285  1.0
  Nd  Nd3  1  0.500  0.535  0.715  1.0
  Mg  Mg4  1  0.500  0.903  0.000  1.0
  Co  Co5  1  0.000  0.220  0.000  1.0
  Co  Co6  1  0.000  0.675  0.000  1.0
  Co  Co7  1  0.000  0.770  0.500  1.0
  Co  Co8  1  0.000  0.284  0.500  1.0
  O  O9  1  0.000  0.314  0.805  1.0
  O  O10  1  0.000  0.709  0.237  1.0
  O  O11  1  0.000  0.314  0.195  1.0
  O  O12  1  0.000  0.709  0.763  1.0
  O  O13  1  0.500  0.298  0.500  1.0
  O  O14  1  0.500  0.758  0.500  1.0
  O  O15  1  0.500  0.169  0.000  1.0
  O  O16  1  0.500  0.643  0.000  1.0
  O  O17  1  0.000  0.955  0.000  1.0
  O  O18  1  0.000  0.517  0.500  1.0
  O  O19  1  0.000  0.041  0.500  1.0
[/CIF]
.