The crystal structure described by Eu4PdO7 crystallizes in the triclinic P-1 space group. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(6), one O(7), and two equivalent O(2) atoms. In the second Eu site, Eu(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), and two equivalent O(3) atoms. In the third Eu site, Eu(3) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and two equivalent O(7) atoms. In the fourth Eu site, Eu(4) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), and two equivalent O(1) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. In the second Pd site, Pd(2) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(5) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded to one Eu(1), one Eu(2), two equivalent Eu(4), and one Pd(2) atom to form distorted OEu4Pd square pyramids that share  a cornercorner with one O(1)Eu4Pd square pyramid, corners with three equivalent O(2)Eu4 tetrahedra, corners with three equivalent O(7)Eu4 tetrahedra,  a cornercorner with one O(5)Eu3Pd2 trigonal bipyramid, corners with two equivalent O(3)Eu4 trigonal pyramids,  an edgeedge with one O(1)Eu4Pd square pyramid, edges with two equivalent O(4)Eu4 tetrahedra, edges with two equivalent O(5)Eu3Pd2 trigonal bipyramids, edges with two equivalent O(6)Eu4Pd trigonal bipyramids, and  an edgeedge with one O(3)Eu4 trigonal pyramid. In the second O site, O(2) is bonded to one Eu(2), one Eu(3), and two equivalent Eu(1) atoms to form OEu4 tetrahedra that share corners with three equivalent O(1)Eu4Pd square pyramids, corners with two equivalent O(4)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra, corners with two equivalent O(5)Eu3Pd2 trigonal bipyramids, corners with two equivalent O(6)Eu4Pd trigonal bipyramids, corners with three equivalent O(3)Eu4 trigonal pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(4)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(6)Eu4Pd trigonal bipyramid. In the third O site, O(3) is bonded to one Eu(3), one Eu(4), and two equivalent Eu(2) atoms to form distorted OEu4 trigonal pyramids that share corners with two equivalent O(1)Eu4Pd square pyramids, corners with three equivalent O(2)Eu4 tetrahedra, corners with three equivalent O(7)Eu4 tetrahedra, corners with four equivalent O(4)Eu4 tetrahedra, corners with two equivalent O(5)Eu3Pd2 trigonal bipyramids,  an edgeedge with one O(1)Eu4Pd square pyramid,  an edgeedge with one O(5)Eu3Pd2 trigonal bipyramid, edges with two equivalent O(6)Eu4Pd trigonal bipyramids, and  an edgeedge with one O(3)Eu4 trigonal pyramid. In the fourth O site, O(4) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Eu(4) atom to form OEu4 tetrahedra that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra, corners with two equivalent O(6)Eu4Pd trigonal bipyramids, corners with three equivalent O(5)Eu3Pd2 trigonal bipyramids, corners with four equivalent O(3)Eu4 trigonal pyramids, edges with two equivalent O(1)Eu4Pd square pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(6)Eu4Pd trigonal bipyramid. In the fifth O site, O(5) is bonded to one Eu(2), one Eu(3), one Eu(4), one Pd(1), and one Pd(2) atom to form distorted OEu3Pd2 trigonal bipyramids that share  a cornercorner with one O(1)Eu4Pd square pyramid,  a cornercorner with one O(7)Eu4 tetrahedra, corners with two equivalent O(2)Eu4 tetrahedra, corners with three equivalent O(4)Eu4 tetrahedra,  a cornercorner with one O(6)Eu4Pd trigonal bipyramid, corners with two equivalent O(5)Eu3Pd2 trigonal bipyramids, corners with two equivalent O(3)Eu4 trigonal pyramids, edges with two equivalent O(1)Eu4Pd square pyramids,  an edgeedge with one O(7)Eu4 tetrahedra, edges with two equivalent O(6)Eu4Pd trigonal bipyramids, and  an edgeedge with one O(3)Eu4 trigonal pyramid. In the sixth O site, O(6) is bonded to one Eu(1), one Eu(2), one Eu(3), one Eu(4), and one Pd(1) atom to form distorted OEu4Pd trigonal bipyramids that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(4)Eu4 tetrahedra, corners with four equivalent O(7)Eu4 tetrahedra,  a cornercorner with one O(5)Eu3Pd2 trigonal bipyramid,  a cornercorner with one O(6)Eu4Pd trigonal bipyramid, edges with two equivalent O(1)Eu4Pd square pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(4)Eu4 tetrahedra, edges with two equivalent O(5)Eu3Pd2 trigonal bipyramids, and edges with two equivalent O(3)Eu4 trigonal pyramids. In the seventh O site, O(7) is bonded to one Eu(1), one Eu(4), and two equivalent Eu(3) atoms to form OEu4 tetrahedra that share corners with three equivalent O(1)Eu4Pd square pyramids, corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(4)Eu4 tetrahedra,  a cornercorner with one O(5)Eu3Pd2 trigonal bipyramid, corners with four equivalent O(6)Eu4Pd trigonal bipyramids, corners with three equivalent O(3)Eu4 trigonal pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(4)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(5)Eu3Pd2 trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu4PdO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.856
_cell_length_b   7.127
_cell_length_c   7.854
_cell_angle_alpha   69.902
_cell_angle_beta   72.032
_cell_angle_gamma   83.712
_symmetry_Int_Tables_number   1
_cell_volume   342.812
_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
  Eu  Eu0  1  0.790  0.378  0.211  1.0
  Eu  Eu1  1  0.210  0.622  0.789  1.0
  Eu  Eu2  1  0.362  0.140  0.144  1.0
  Eu  Eu3  1  0.638  0.860  0.856  1.0
  Eu  Eu4  1  0.208  0.607  0.274  1.0
  Eu  Eu5  1  0.792  0.393  0.726  1.0
  Eu  Eu6  1  0.337  0.170  0.619  1.0
  Eu  Eu7  1  0.663  0.830  0.381  1.0
  Pd  Pd8  1  0.000  0.000  0.000  1.0
  Pd  Pd9  1  0.000  0.000  0.500  1.0
  O  O10  1  0.705  0.074  0.512  1.0
  O  O11  1  0.295  0.926  0.488  1.0
  O  O12  1  0.147  0.414  0.100  1.0
  O  O13  1  0.853  0.586  0.900  1.0
  O  O14  1  0.516  0.779  0.175  1.0
  O  O15  1  0.484  0.221  0.825  1.0
  O  O16  1  0.439  0.339  0.300  1.0
  O  O17  1  0.561  0.661  0.700  1.0
  O  O18  1  0.048  0.933  0.258  1.0
  O  O19  1  0.952  0.067  0.742  1.0
  O  O20  1  0.738  0.141  0.079  1.0
  O  O21  1  0.262  0.859  0.921  1.0
  O  O22  1  0.154  0.462  0.601  1.0
  O  O23  1  0.846  0.538  0.399  1.0
[/CIF]
.
The crystal structure described by Eu4PdO7 crystallizes in the triclinic P-1 space group. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(6), one O(7), and two equivalent O(2) atoms. In the second Eu site, Eu(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), and two equivalent O(3) atoms. In the third Eu site, Eu(3) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and two equivalent O(7) atoms. In the fourth Eu site, Eu(4) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), and two equivalent O(1) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. In the second Pd site, Pd(2) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(5) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded to one Eu(1), one Eu(2), two equivalent Eu(4), and one Pd(2) atom to form distorted OEu4Pd square pyramids that share  a cornercorner with one O(1)Eu4Pd square pyramid, corners with three equivalent O(2)Eu4 tetrahedra, corners with three equivalent O(7)Eu4 tetrahedra,  a cornercorner with one O(5)Eu3Pd2 trigonal bipyramid, corners with two equivalent O(3)Eu4 trigonal pyramids,  an edgeedge with one O(1)Eu4Pd square pyramid, edges with two equivalent O(4)Eu4 tetrahedra, edges with two equivalent O(5)Eu3Pd2 trigonal bipyramids, edges with two equivalent O(6)Eu4Pd trigonal bipyramids, and  an edgeedge with one O(3)Eu4 trigonal pyramid. In the second O site, O(2) is bonded to one Eu(2), one Eu(3), and two equivalent Eu(1) atoms to form OEu4 tetrahedra that share corners with three equivalent O(1)Eu4Pd square pyramids, corners with two equivalent O(4)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra, corners with two equivalent O(5)Eu3Pd2 trigonal bipyramids, corners with two equivalent O(6)Eu4Pd trigonal bipyramids, corners with three equivalent O(3)Eu4 trigonal pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(4)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(6)Eu4Pd trigonal bipyramid. In the third O site, O(3) is bonded to one Eu(3), one Eu(4), and two equivalent Eu(2) atoms to form distorted OEu4 trigonal pyramids that share corners with two equivalent O(1)Eu4Pd square pyramids, corners with three equivalent O(2)Eu4 tetrahedra, corners with three equivalent O(7)Eu4 tetrahedra, corners with four equivalent O(4)Eu4 tetrahedra, corners with two equivalent O(5)Eu3Pd2 trigonal bipyramids,  an edgeedge with one O(1)Eu4Pd square pyramid,  an edgeedge with one O(5)Eu3Pd2 trigonal bipyramid, edges with two equivalent O(6)Eu4Pd trigonal bipyramids, and  an edgeedge with one O(3)Eu4 trigonal pyramid. In the fourth O site, O(4) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Eu(4) atom to form OEu4 tetrahedra that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra, corners with two equivalent O(6)Eu4Pd trigonal bipyramids, corners with three equivalent O(5)Eu3Pd2 trigonal bipyramids, corners with four equivalent O(3)Eu4 trigonal pyramids, edges with two equivalent O(1)Eu4Pd square pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(6)Eu4Pd trigonal bipyramid. In the fifth O site, O(5) is bonded to one Eu(2), one Eu(3), one Eu(4), one Pd(1), and one Pd(2) atom to form distorted OEu3Pd2 trigonal bipyramids that share  a cornercorner with one O(1)Eu4Pd square pyramid,  a cornercorner with one O(7)Eu4 tetrahedra, corners with two equivalent O(2)Eu4 tetrahedra, corners with three equivalent O(4)Eu4 tetrahedra,  a cornercorner with one O(6)Eu4Pd trigonal bipyramid, corners with two equivalent O(5)Eu3Pd2 trigonal bipyramids, corners with two equivalent O(3)Eu4 trigonal pyramids, edges with two equivalent O(1)Eu4Pd square pyramids,  an edgeedge with one O(7)Eu4 tetrahedra, edges with two equivalent O(6)Eu4Pd trigonal bipyramids, and  an edgeedge with one O(3)Eu4 trigonal pyramid. In the sixth O site, O(6) is bonded to one Eu(1), one Eu(2), one Eu(3), one Eu(4), and one Pd(1) atom to form distorted OEu4Pd trigonal bipyramids that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(4)Eu4 tetrahedra, corners with four equivalent O(7)Eu4 tetrahedra,  a cornercorner with one O(5)Eu3Pd2 trigonal bipyramid,  a cornercorner with one O(6)Eu4Pd trigonal bipyramid, edges with two equivalent O(1)Eu4Pd square pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(4)Eu4 tetrahedra, edges with two equivalent O(5)Eu3Pd2 trigonal bipyramids, and edges with two equivalent O(3)Eu4 trigonal pyramids. In the seventh O site, O(7) is bonded to one Eu(1), one Eu(4), and two equivalent Eu(3) atoms to form OEu4 tetrahedra that share corners with three equivalent O(1)Eu4Pd square pyramids, corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(4)Eu4 tetrahedra,  a cornercorner with one O(5)Eu3Pd2 trigonal bipyramid, corners with four equivalent O(6)Eu4Pd trigonal bipyramids, corners with three equivalent O(3)Eu4 trigonal pyramids,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(4)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(5)Eu3Pd2 trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu4PdO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.856
_cell_length_b   7.127
_cell_length_c   7.854
_cell_angle_alpha   69.902
_cell_angle_beta   72.032
_cell_angle_gamma   83.712
_symmetry_Int_Tables_number   1
_cell_volume   342.812
_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
  Eu  Eu0  1  0.790  0.378  0.211  1.0
  Eu  Eu1  1  0.210  0.622  0.789  1.0
  Eu  Eu2  1  0.362  0.140  0.144  1.0
  Eu  Eu3  1  0.638  0.860  0.856  1.0
  Eu  Eu4  1  0.208  0.607  0.274  1.0
  Eu  Eu5  1  0.792  0.393  0.726  1.0
  Eu  Eu6  1  0.337  0.170  0.619  1.0
  Eu  Eu7  1  0.663  0.830  0.381  1.0
  Pd  Pd8  1  0.000  0.000  0.000  1.0
  Pd  Pd9  1  0.000  0.000  0.500  1.0
  O  O10  1  0.705  0.074  0.512  1.0
  O  O11  1  0.295  0.926  0.488  1.0
  O  O12  1  0.147  0.414  0.100  1.0
  O  O13  1  0.853  0.586  0.900  1.0
  O  O14  1  0.516  0.779  0.175  1.0
  O  O15  1  0.484  0.221  0.825  1.0
  O  O16  1  0.439  0.339  0.300  1.0
  O  O17  1  0.561  0.661  0.700  1.0
  O  O18  1  0.048  0.933  0.258  1.0
  O  O19  1  0.952  0.067  0.742  1.0
  O  O20  1  0.738  0.141  0.079  1.0
  O  O21  1  0.262  0.859  0.921  1.0
  O  O22  1  0.154  0.462  0.601  1.0
  O  O23  1  0.846  0.538  0.399  1.0
[/CIF]
.