The compound described by La8Cu3O16 crystallizes in the triclinic P1 space group. There are eight inequivalent La sites. In the first La site, La(1) is bonded in a 4-coordinate geometry to one O(1), one O(15), one O(5), and one O(8) atom. In the second La site, La(2) is bonded in a 4-coordinate geometry to one O(13), one O(2), one O(7), and one O(9) atom. In the third La site, La(3) is bonded in a 4-coordinate geometry to one O(13), one O(14), one O(2), and one O(3) atom. In the fourth La site, La(4) is bonded in a 3-coordinate geometry to one O(14), one O(6), one O(8), and one O(9) atom. In the fifth La site, La(5) is bonded in a 7-coordinate geometry to one Cu(1), one Cu(3), one O(13), one O(15), one O(16), one O(7), and one O(9) atom. In the sixth La site, La(6) is bonded in a 4-coordinate geometry to one O(16), one O(5), one O(6), and one O(8) atom. In the seventh La site, La(7) is bonded in a 4-coordinate geometry to one O(15), one O(3), one O(5), and one O(7) atom. In the eighth La site, La(8) is bonded in a 7-coordinate geometry to one Cu(1), one Cu(2), one O(1), one O(14), one O(2), one O(3), and one O(6) atom. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted linear geometry to one La(5), one La(8), one O(10), one O(13), one O(2), and one O(4) atom. In the second Cu site, Cu(2) is bonded in a distorted linear geometry to one La(8), one O(11), one O(12), one O(14), and one O(6) atom. In the third Cu site, Cu(3) is bonded in a distorted linear geometry to one La(5), one O(11), one O(12), one O(15), and one O(7) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one La(1) and one La(8) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(2), one La(3), one La(8), and one Cu(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one La(3), one La(7), and one La(8) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Cu(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one La(1), one La(6), and one La(7) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one La(4), one La(6), one La(8), and one Cu(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one La(2), one La(5), one La(7), and one Cu(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one La(1), one La(4), and one La(6) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to one La(2), one La(4), and one La(5) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Cu(1) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one Cu(2) and one Cu(3) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one Cu(2) and one Cu(3) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one La(2), one La(3), one La(5), and one Cu(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one La(3), one La(4), one La(8), and one Cu(2) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one La(1), one La(5), one La(7), and one Cu(3) atom. In the sixteenth O site, O(16) is bonded in a distorted linear geometry to one La(5) and one La(6) atom. is represented by the CIF card [CIF]
data_La8Cu3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.107
_cell_length_b   7.541
_cell_length_c   8.421
_cell_angle_alpha   116.529
_cell_angle_beta   96.773
_cell_angle_gamma   105.506
_symmetry_Int_Tables_number   1
_cell_volume   374.068
_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
  La  La0  1  0.270  0.163  0.323  1.0
  La  La1  1  0.724  0.853  0.673  1.0
  La  La2  1  0.275  0.647  0.330  1.0
  La  La3  1  0.279  0.405  0.811  1.0
  La  La4  1  0.278  0.923  0.814  1.0
  La  La5  1  0.728  0.337  0.679  1.0
  La  La6  1  0.721  0.096  0.190  1.0
  La  La7  1  0.722  0.578  0.186  1.0
  Cu  Cu8  1  0.001  0.750  0.500  1.0
  Cu  Cu9  1  0.001  0.499  1.000  1.0
  Cu  Cu10  1  0.996  0.999  0.997  1.0
  O  O11  1  0.994  0.875  0.248  1.0
  O  O12  1  0.632  0.705  0.411  1.0
  O  O13  1  0.001  0.379  0.245  1.0
  O  O14  1  0.004  0.994  0.501  1.0
  O  O15  1  0.624  0.201  0.400  1.0
  O  O16  1  0.637  0.450  0.907  1.0
  O  O17  1  0.633  0.953  0.898  1.0
  O  O18  1  0.373  0.298  0.594  1.0
  O  O19  1  1.000  0.123  0.755  1.0
  O  O20  1  0.996  0.507  0.499  1.0
  O  O21  1  0.997  0.748  0.001  1.0
  O  O22  1  0.998  0.248  0.001  1.0
  O  O23  1  0.365  0.794  0.583  1.0
  O  O24  1  0.367  0.539  0.091  1.0
  O  O25  1  0.365  0.044  0.083  1.0
  O  O26  1  0.006  0.627  0.751  1.0
[/CIF]
.
The compound described by La8Cu3O16 crystallizes in the triclinic P1 space group. There are eight inequivalent La sites. In the first La site, La(1) is bonded in a 4-coordinate geometry to one O(1), one O(15), one O(5), and one O(8) atom. In the second La site, La(2) is bonded in a 4-coordinate geometry to one O(13), one O(2), one O(7), and one O(9) atom. In the third La site, La(3) is bonded in a 4-coordinate geometry to one O(13), one O(14), one O(2), and one O(3) atom. In the fourth La site, La(4) is bonded in a 3-coordinate geometry to one O(14), one O(6), one O(8), and one O(9) atom. In the fifth La site, La(5) is bonded in a 7-coordinate geometry to one Cu(1), one Cu(3), one O(13), one O(15), one O(16), one O(7), and one O(9) atom. In the sixth La site, La(6) is bonded in a 4-coordinate geometry to one O(16), one O(5), one O(6), and one O(8) atom. In the seventh La site, La(7) is bonded in a 4-coordinate geometry to one O(15), one O(3), one O(5), and one O(7) atom. In the eighth La site, La(8) is bonded in a 7-coordinate geometry to one Cu(1), one Cu(2), one O(1), one O(14), one O(2), one O(3), and one O(6) atom. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted linear geometry to one La(5), one La(8), one O(10), one O(13), one O(2), and one O(4) atom. In the second Cu site, Cu(2) is bonded in a distorted linear geometry to one La(8), one O(11), one O(12), one O(14), and one O(6) atom. In the third Cu site, Cu(3) is bonded in a distorted linear geometry to one La(5), one O(11), one O(12), one O(15), and one O(7) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one La(1) and one La(8) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(2), one La(3), one La(8), and one Cu(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one La(3), one La(7), and one La(8) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Cu(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one La(1), one La(6), and one La(7) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one La(4), one La(6), one La(8), and one Cu(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one La(2), one La(5), one La(7), and one Cu(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one La(1), one La(4), and one La(6) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to one La(2), one La(4), and one La(5) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Cu(1) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one Cu(2) and one Cu(3) atom. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one Cu(2) and one Cu(3) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one La(2), one La(3), one La(5), and one Cu(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one La(3), one La(4), one La(8), and one Cu(2) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one La(1), one La(5), one La(7), and one Cu(3) atom. In the sixteenth O site, O(16) is bonded in a distorted linear geometry to one La(5) and one La(6) atom. is represented by the CIF card [CIF]
data_La8Cu3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.107
_cell_length_b   7.541
_cell_length_c   8.421
_cell_angle_alpha   116.529
_cell_angle_beta   96.773
_cell_angle_gamma   105.506
_symmetry_Int_Tables_number   1
_cell_volume   374.068
_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
  La  La0  1  0.270  0.163  0.323  1.0
  La  La1  1  0.724  0.853  0.673  1.0
  La  La2  1  0.275  0.647  0.330  1.0
  La  La3  1  0.279  0.405  0.811  1.0
  La  La4  1  0.278  0.923  0.814  1.0
  La  La5  1  0.728  0.337  0.679  1.0
  La  La6  1  0.721  0.096  0.190  1.0
  La  La7  1  0.722  0.578  0.186  1.0
  Cu  Cu8  1  0.001  0.750  0.500  1.0
  Cu  Cu9  1  0.001  0.499  1.000  1.0
  Cu  Cu10  1  0.996  0.999  0.997  1.0
  O  O11  1  0.994  0.875  0.248  1.0
  O  O12  1  0.632  0.705  0.411  1.0
  O  O13  1  0.001  0.379  0.245  1.0
  O  O14  1  0.004  0.994  0.501  1.0
  O  O15  1  0.624  0.201  0.400  1.0
  O  O16  1  0.637  0.450  0.907  1.0
  O  O17  1  0.633  0.953  0.898  1.0
  O  O18  1  0.373  0.298  0.594  1.0
  O  O19  1  1.000  0.123  0.755  1.0
  O  O20  1  0.996  0.507  0.499  1.0
  O  O21  1  0.997  0.748  0.001  1.0
  O  O22  1  0.998  0.248  0.001  1.0
  O  O23  1  0.365  0.794  0.583  1.0
  O  O24  1  0.367  0.539  0.091  1.0
  O  O25  1  0.365  0.044  0.083  1.0
  O  O26  1  0.006  0.627  0.751  1.0
[/CIF]
.