The compound described by LiEu2CoO4 crystallizes in the triclinic P1 space group. Li(1) is bonded to one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted LiO5 trigonal bipyramids that share corners with three equivalent Eu(2)O7 pentagonal bipyramids, corners with four equivalent Li(1)O5 trigonal bipyramids,  an edgeedge with one Eu(2)O7 pentagonal bipyramid, edges with four equivalent Eu(1)O7 pentagonal bipyramids, and edges with four equivalent Co(1)O5 trigonal bipyramids. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to one O(1), two equivalent O(3), and four equivalent O(4) atoms to form distorted EuO7 pentagonal bipyramids that share corners with four equivalent Eu(1)O7 pentagonal bipyramids, corners with three equivalent Co(1)O5 trigonal bipyramids, edges with two equivalent Eu(1)O7 pentagonal bipyramids, edges with four equivalent Eu(2)O7 pentagonal bipyramids,  an edgeedge with one Co(1)O5 trigonal bipyramid, edges with four equivalent Li(1)O5 trigonal bipyramids, and faces with two equivalent Eu(1)O7 pentagonal bipyramids. In the second Eu site, Eu(2) is bonded to one O(4), two equivalent O(2), and four equivalent O(1) atoms to form distorted EuO7 pentagonal bipyramids that share corners with four equivalent Eu(2)O7 pentagonal bipyramids, corners with three equivalent Li(1)O5 trigonal bipyramids, edges with two equivalent Eu(2)O7 pentagonal bipyramids, edges with four equivalent Eu(1)O7 pentagonal bipyramids,  an edgeedge with one Li(1)O5 trigonal bipyramid, edges with four equivalent Co(1)O5 trigonal bipyramids, and faces with two equivalent Eu(2)O7 pentagonal bipyramids. Co(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CoO5 trigonal bipyramids that share corners with three equivalent Eu(1)O7 pentagonal bipyramids, corners with four equivalent Co(1)O5 trigonal bipyramids,  an edgeedge with one Eu(1)O7 pentagonal bipyramid, edges with four equivalent Eu(2)O7 pentagonal bipyramids, and edges with four equivalent Li(1)O5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Eu(1), four equivalent Eu(2), and one Co(1) atom to form OEu5Co octahedra that share corners with four equivalent O(1)Eu5Co octahedra, corners with four equivalent O(2)Li2Eu2Co2 octahedra, corners with four equivalent O(3)Li2Eu2Co2 octahedra, edges with four equivalent O(1)Eu5Co octahedra, edges with four equivalent O(4)LiEu5 octahedra, and faces with two equivalent O(2)Li2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 11-62°. In the second O site, O(2) is bonded to two equivalent Li(1), two equivalent Eu(2), and two equivalent Co(1) atoms to form OLi2Eu2Co2 octahedra that share corners with two equivalent O(2)Li2Eu2Co2 octahedra, corners with four equivalent O(1)Eu5Co octahedra, corners with four equivalent O(4)LiEu5 octahedra, edges with two equivalent O(2)Li2Eu2Co2 octahedra, edges with four equivalent O(3)Li2Eu2Co2 octahedra, and faces with two equivalent O(1)Eu5Co octahedra. The corner-sharing octahedral tilt angles range from 13-62°. In the third O site, O(3) is bonded to two equivalent Li(1), two equivalent Eu(1), and two equivalent Co(1) atoms to form distorted OLi2Eu2Co2 octahedra that share corners with two equivalent O(3)Li2Eu2Co2 octahedra, corners with four equivalent O(1)Eu5Co octahedra, corners with four equivalent O(4)LiEu5 octahedra, edges with two equivalent O(3)Li2Eu2Co2 octahedra, edges with four equivalent O(2)Li2Eu2Co2 octahedra, and faces with two equivalent O(4)LiEu5 octahedra. The corner-sharing octahedral tilt angles range from 11-59°. In the fourth O site, O(4) is bonded to one Li(1), one Eu(2), and four equivalent Eu(1) atoms to form OLiEu5 octahedra that share corners with four equivalent O(2)Li2Eu2Co2 octahedra, corners with four equivalent O(3)Li2Eu2Co2 octahedra, corners with four equivalent O(4)LiEu5 octahedra, edges with four equivalent O(1)Eu5Co octahedra, edges with four equivalent O(4)LiEu5 octahedra, and faces with two equivalent O(3)Li2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 15-59°. is represented by the CIF card [CIF]
data_LiEu2CoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.322
_cell_length_b   9.395
_cell_length_c   5.108
_cell_angle_alpha   122.379
_cell_angle_beta   49.294
_cell_angle_gamma   110.557
_symmetry_Int_Tables_number   1
_cell_volume   102.065
_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
  Li  Li0  1  0.004  0.908  0.257  1.0
  Eu  Eu1  1  0.008  0.650  0.496  1.0
  Eu  Eu2  1  0.992  0.311  0.672  1.0
  Co  Co3  1  0.993  0.050  0.910  1.0
  O  O4  1  0.005  0.342  0.189  1.0
  O  O5  1  0.507  0.077  0.426  1.0
  O  O6  1  0.513  0.886  0.731  1.0
  O  O7  1  0.993  0.607  0.955  1.0
[/CIF]
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The compound described by LiEu2CoO4 crystallizes in the triclinic P1 space group. Li(1) is bonded to one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted LiO5 trigonal bipyramids that share corners with three equivalent Eu(2)O7 pentagonal bipyramids, corners with four equivalent Li(1)O5 trigonal bipyramids,  an edgeedge with one Eu(2)O7 pentagonal bipyramid, edges with four equivalent Eu(1)O7 pentagonal bipyramids, and edges with four equivalent Co(1)O5 trigonal bipyramids. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to one O(1), two equivalent O(3), and four equivalent O(4) atoms to form distorted EuO7 pentagonal bipyramids that share corners with four equivalent Eu(1)O7 pentagonal bipyramids, corners with three equivalent Co(1)O5 trigonal bipyramids, edges with two equivalent Eu(1)O7 pentagonal bipyramids, edges with four equivalent Eu(2)O7 pentagonal bipyramids,  an edgeedge with one Co(1)O5 trigonal bipyramid, edges with four equivalent Li(1)O5 trigonal bipyramids, and faces with two equivalent Eu(1)O7 pentagonal bipyramids. In the second Eu site, Eu(2) is bonded to one O(4), two equivalent O(2), and four equivalent O(1) atoms to form distorted EuO7 pentagonal bipyramids that share corners with four equivalent Eu(2)O7 pentagonal bipyramids, corners with three equivalent Li(1)O5 trigonal bipyramids, edges with two equivalent Eu(2)O7 pentagonal bipyramids, edges with four equivalent Eu(1)O7 pentagonal bipyramids,  an edgeedge with one Li(1)O5 trigonal bipyramid, edges with four equivalent Co(1)O5 trigonal bipyramids, and faces with two equivalent Eu(2)O7 pentagonal bipyramids. Co(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CoO5 trigonal bipyramids that share corners with three equivalent Eu(1)O7 pentagonal bipyramids, corners with four equivalent Co(1)O5 trigonal bipyramids,  an edgeedge with one Eu(1)O7 pentagonal bipyramid, edges with four equivalent Eu(2)O7 pentagonal bipyramids, and edges with four equivalent Li(1)O5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Eu(1), four equivalent Eu(2), and one Co(1) atom to form OEu5Co octahedra that share corners with four equivalent O(1)Eu5Co octahedra, corners with four equivalent O(2)Li2Eu2Co2 octahedra, corners with four equivalent O(3)Li2Eu2Co2 octahedra, edges with four equivalent O(1)Eu5Co octahedra, edges with four equivalent O(4)LiEu5 octahedra, and faces with two equivalent O(2)Li2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 11-62°. In the second O site, O(2) is bonded to two equivalent Li(1), two equivalent Eu(2), and two equivalent Co(1) atoms to form OLi2Eu2Co2 octahedra that share corners with two equivalent O(2)Li2Eu2Co2 octahedra, corners with four equivalent O(1)Eu5Co octahedra, corners with four equivalent O(4)LiEu5 octahedra, edges with two equivalent O(2)Li2Eu2Co2 octahedra, edges with four equivalent O(3)Li2Eu2Co2 octahedra, and faces with two equivalent O(1)Eu5Co octahedra. The corner-sharing octahedral tilt angles range from 13-62°. In the third O site, O(3) is bonded to two equivalent Li(1), two equivalent Eu(1), and two equivalent Co(1) atoms to form distorted OLi2Eu2Co2 octahedra that share corners with two equivalent O(3)Li2Eu2Co2 octahedra, corners with four equivalent O(1)Eu5Co octahedra, corners with four equivalent O(4)LiEu5 octahedra, edges with two equivalent O(3)Li2Eu2Co2 octahedra, edges with four equivalent O(2)Li2Eu2Co2 octahedra, and faces with two equivalent O(4)LiEu5 octahedra. The corner-sharing octahedral tilt angles range from 11-59°. In the fourth O site, O(4) is bonded to one Li(1), one Eu(2), and four equivalent Eu(1) atoms to form OLiEu5 octahedra that share corners with four equivalent O(2)Li2Eu2Co2 octahedra, corners with four equivalent O(3)Li2Eu2Co2 octahedra, corners with four equivalent O(4)LiEu5 octahedra, edges with four equivalent O(1)Eu5Co octahedra, edges with four equivalent O(4)LiEu5 octahedra, and faces with two equivalent O(3)Li2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 15-59°. is represented by the CIF card [CIF]
data_LiEu2CoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.322
_cell_length_b   9.395
_cell_length_c   5.108
_cell_angle_alpha   122.379
_cell_angle_beta   49.294
_cell_angle_gamma   110.557
_symmetry_Int_Tables_number   1
_cell_volume   102.065
_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
  Li  Li0  1  0.004  0.908  0.257  1.0
  Eu  Eu1  1  0.008  0.650  0.496  1.0
  Eu  Eu2  1  0.992  0.311  0.672  1.0
  Co  Co3  1  0.993  0.050  0.910  1.0
  O  O4  1  0.005  0.342  0.189  1.0
  O  O5  1  0.507  0.077  0.426  1.0
  O  O6  1  0.513  0.886  0.731  1.0
  O  O7  1  0.993  0.607  0.955  1.0
[/CIF]
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