The crystal structure described by Y4Cu7O16 crystallizes in the triclinic P-1 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to one O(1), one O(13), one O(4), one O(5), one O(7), one O(9), and two equivalent O(3) atoms. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to one O(1), one O(13), one O(14), one O(15), one O(2), one O(5), one O(6), and one O(7) atom. In the third Y site, Y(3) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(15), one O(16), one O(6), one O(8), and two equivalent O(11) atoms. In the fourth Y site, Y(4) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(14), one O(16), one O(2), one O(4), one O(8), and one O(9) atom. There are nine inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to one O(1), one O(10), one O(4), and one O(9) atom. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(5) atoms. In the third Cu site, Cu(3) is bonded in a square co-planar geometry to one O(11), one O(3), one O(7), and one O(8) atom. In the fourth Cu site, Cu(4) is bonded in a square co-planar geometry to one O(12), one O(13), one O(15), and one O(6) atom. In the fifth Cu site, Cu(5) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. In the sixth Cu site, Cu(6) is bonded in a square co-planar geometry to one O(11), one O(3), one O(6), and one O(9) atom. In the seventh Cu site, Cu(7) is bonded in a square co-planar geometry to one O(10), one O(13), one O(16), and one O(5) atom. In the eighth Cu site, Cu(8) is bonded in a square co-planar geometry to two equivalent O(12) and two equivalent O(8) atoms. In the ninth Cu site, Cu(9) is bonded in a square co-planar geometry to two equivalent O(14) and two equivalent O(16) atoms. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Y(1), one Y(2), and one Cu(1) atom. In the second O site, O(2) is bonded to one Y(2), one Y(4), one Cu(2), and one Cu(5) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the third O site, O(3) is bonded to two equivalent Y(1), one Cu(3), and one Cu(6) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the fourth O site, O(4) is bonded to one Y(1), one Y(4), one Cu(1), and one Cu(5) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the fifth O site, O(5) is bonded to one Y(1), one Y(2), one Cu(2), and one Cu(7) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the sixth O site, O(6) is bonded to one Y(2), one Y(3), one Cu(4), and one Cu(6) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Y(1), one Y(2), and one Cu(3) atom. In the eighth O site, O(8) is bonded to one Y(3), one Y(4), one Cu(3), and one Cu(8) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the ninth O site, O(9) is bonded to one Y(1), one Y(4), one Cu(1), and one Cu(6) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the tenth O site, O(10) is bonded to one Y(3), one Y(4), one Cu(1), and one Cu(7) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the eleventh O site, O(11) is bonded to two equivalent Y(3), one Cu(3), and one Cu(6) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the twelfth O site, O(12) is bonded to one Y(3), one Y(4), one Cu(4), and one Cu(8) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the thirteenth O site, O(13) is bonded to one Y(1), one Y(2), one Cu(4), and one Cu(7) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the fourteenth O site, O(14) is bonded in a trigonal non-coplanar geometry to one Y(2), one Y(4), and one Cu(9) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Y(2), one Y(3), and one Cu(4) atom. In the sixteenth O site, O(16) is bonded to one Y(3), one Y(4), one Cu(7), and one Cu(9) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. is represented by the CIF card [CIF]
data_Y4Cu7O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.226
_cell_length_b   10.124
_cell_length_c   10.263
_cell_angle_alpha   101.396
_cell_angle_beta   96.957
_cell_angle_gamma   97.552
_symmetry_Int_Tables_number   1
_cell_volume   621.423
_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
  Y  Y0  1  0.398  0.315  0.966  1.0
  Y  Y1  1  0.602  0.685  0.034  1.0
  Y  Y2  1  0.151  0.807  0.220  1.0
  Y  Y3  1  0.912  0.307  0.474  1.0
  Y  Y4  1  0.345  0.182  0.284  1.0
  Y  Y5  1  0.088  0.693  0.526  1.0
  Y  Y6  1  0.655  0.818  0.716  1.0
  Y  Y7  1  0.849  0.193  0.780  1.0
  Cu  Cu8  1  0.135  0.754  0.879  1.0
  Cu  Cu9  1  0.000  0.000  0.000  1.0
  Cu  Cu10  1  0.865  0.246  0.121  1.0
  Cu  Cu11  1  0.747  0.502  0.251  1.0
  Cu  Cu12  1  0.633  0.747  0.373  1.0
  Cu  Cu13  1  0.500  0.000  0.000  1.0
  Cu  Cu14  1  0.239  0.499  0.242  1.0
  Cu  Cu15  1  0.766  0.999  0.262  1.0
  Cu  Cu16  1  0.500  0.500  0.500  1.0
  Cu  Cu17  1  0.500  0.000  0.500  1.0
  Cu  Cu18  1  0.367  0.253  0.627  1.0
  Cu  Cu19  1  0.253  0.498  0.749  1.0
  Cu  Cu20  1  0.761  0.501  0.758  1.0
  Cu  Cu21  1  0.234  0.001  0.738  1.0
  O  O22  1  0.228  0.684  0.023  1.0
  O  O23  1  0.736  0.012  0.902  1.0
  O  O24  1  0.772  0.316  0.977  1.0
  O  O25  1  0.482  0.511  0.148  1.0
  O  O26  1  0.569  0.176  0.109  1.0
  O  O27  1  0.137  0.102  0.888  1.0
  O  O28  1  0.326  0.676  0.354  1.0
  O  O29  1  0.880  0.612  0.151  1.0
  O  O30  1  0.863  0.898  0.112  1.0
  O  O31  1  0.431  0.824  0.891  1.0
  O  O32  1  0.612  0.392  0.359  1.0
  O  O33  1  0.169  0.317  0.142  1.0
  O  O34  1  0.264  0.988  0.098  1.0
  O  O35  1  0.955  0.164  0.266  1.0
  O  O36  1  0.011  0.486  0.350  1.0
  O  O37  1  0.703  0.662  0.515  1.0
  O  O38  1  0.560  0.839  0.240  1.0
  O  O39  1  0.260  0.005  0.378  1.0
  O  O40  1  0.297  0.338  0.485  1.0
  O  O41  1  0.989  0.514  0.650  1.0
  O  O42  1  0.074  0.187  0.610  1.0
  O  O43  1  0.652  0.107  0.399  1.0
  O  O44  1  0.831  0.683  0.858  1.0
  O  O45  1  0.388  0.608  0.641  1.0
  O  O46  1  0.348  0.893  0.601  1.0
  O  O47  1  0.926  0.813  0.390  1.0
  O  O48  1  0.120  0.388  0.849  1.0
  O  O49  1  0.674  0.324  0.646  1.0
  O  O50  1  0.740  0.995  0.622  1.0
  O  O51  1  0.440  0.161  0.760  1.0
  O  O52  1  0.518  0.489  0.852  1.0
  O  O53  1  0.045  0.836  0.734  1.0
[/CIF]
.
The crystal structure described by Y4Cu7O16 crystallizes in the triclinic P-1 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to one O(1), one O(13), one O(4), one O(5), one O(7), one O(9), and two equivalent O(3) atoms. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to one O(1), one O(13), one O(14), one O(15), one O(2), one O(5), one O(6), and one O(7) atom. In the third Y site, Y(3) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(15), one O(16), one O(6), one O(8), and two equivalent O(11) atoms. In the fourth Y site, Y(4) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(14), one O(16), one O(2), one O(4), one O(8), and one O(9) atom. There are nine inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to one O(1), one O(10), one O(4), and one O(9) atom. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(5) atoms. In the third Cu site, Cu(3) is bonded in a square co-planar geometry to one O(11), one O(3), one O(7), and one O(8) atom. In the fourth Cu site, Cu(4) is bonded in a square co-planar geometry to one O(12), one O(13), one O(15), and one O(6) atom. In the fifth Cu site, Cu(5) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. In the sixth Cu site, Cu(6) is bonded in a square co-planar geometry to one O(11), one O(3), one O(6), and one O(9) atom. In the seventh Cu site, Cu(7) is bonded in a square co-planar geometry to one O(10), one O(13), one O(16), and one O(5) atom. In the eighth Cu site, Cu(8) is bonded in a square co-planar geometry to two equivalent O(12) and two equivalent O(8) atoms. In the ninth Cu site, Cu(9) is bonded in a square co-planar geometry to two equivalent O(14) and two equivalent O(16) atoms. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Y(1), one Y(2), and one Cu(1) atom. In the second O site, O(2) is bonded to one Y(2), one Y(4), one Cu(2), and one Cu(5) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the third O site, O(3) is bonded to two equivalent Y(1), one Cu(3), and one Cu(6) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the fourth O site, O(4) is bonded to one Y(1), one Y(4), one Cu(1), and one Cu(5) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the fifth O site, O(5) is bonded to one Y(1), one Y(2), one Cu(2), and one Cu(7) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the sixth O site, O(6) is bonded to one Y(2), one Y(3), one Cu(4), and one Cu(6) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Y(1), one Y(2), and one Cu(3) atom. In the eighth O site, O(8) is bonded to one Y(3), one Y(4), one Cu(3), and one Cu(8) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the ninth O site, O(9) is bonded to one Y(1), one Y(4), one Cu(1), and one Cu(6) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the tenth O site, O(10) is bonded to one Y(3), one Y(4), one Cu(1), and one Cu(7) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the eleventh O site, O(11) is bonded to two equivalent Y(3), one Cu(3), and one Cu(6) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the twelfth O site, O(12) is bonded to one Y(3), one Y(4), one Cu(4), and one Cu(8) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. In the thirteenth O site, O(13) is bonded to one Y(1), one Y(2), one Cu(4), and one Cu(7) atom to form a mixture of distorted corner and edge-sharing OY2Cu2 tetrahedra. In the fourteenth O site, O(14) is bonded in a trigonal non-coplanar geometry to one Y(2), one Y(4), and one Cu(9) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Y(2), one Y(3), and one Cu(4) atom. In the sixteenth O site, O(16) is bonded to one Y(3), one Y(4), one Cu(7), and one Cu(9) atom to form a mixture of corner and edge-sharing OY2Cu2 tetrahedra. is represented by the CIF card [CIF]
data_Y4Cu7O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.226
_cell_length_b   10.124
_cell_length_c   10.263
_cell_angle_alpha   101.396
_cell_angle_beta   96.957
_cell_angle_gamma   97.552
_symmetry_Int_Tables_number   1
_cell_volume   621.423
_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
  Y  Y0  1  0.398  0.315  0.966  1.0
  Y  Y1  1  0.602  0.685  0.034  1.0
  Y  Y2  1  0.151  0.807  0.220  1.0
  Y  Y3  1  0.912  0.307  0.474  1.0
  Y  Y4  1  0.345  0.182  0.284  1.0
  Y  Y5  1  0.088  0.693  0.526  1.0
  Y  Y6  1  0.655  0.818  0.716  1.0
  Y  Y7  1  0.849  0.193  0.780  1.0
  Cu  Cu8  1  0.135  0.754  0.879  1.0
  Cu  Cu9  1  0.000  0.000  0.000  1.0
  Cu  Cu10  1  0.865  0.246  0.121  1.0
  Cu  Cu11  1  0.747  0.502  0.251  1.0
  Cu  Cu12  1  0.633  0.747  0.373  1.0
  Cu  Cu13  1  0.500  0.000  0.000  1.0
  Cu  Cu14  1  0.239  0.499  0.242  1.0
  Cu  Cu15  1  0.766  0.999  0.262  1.0
  Cu  Cu16  1  0.500  0.500  0.500  1.0
  Cu  Cu17  1  0.500  0.000  0.500  1.0
  Cu  Cu18  1  0.367  0.253  0.627  1.0
  Cu  Cu19  1  0.253  0.498  0.749  1.0
  Cu  Cu20  1  0.761  0.501  0.758  1.0
  Cu  Cu21  1  0.234  0.001  0.738  1.0
  O  O22  1  0.228  0.684  0.023  1.0
  O  O23  1  0.736  0.012  0.902  1.0
  O  O24  1  0.772  0.316  0.977  1.0
  O  O25  1  0.482  0.511  0.148  1.0
  O  O26  1  0.569  0.176  0.109  1.0
  O  O27  1  0.137  0.102  0.888  1.0
  O  O28  1  0.326  0.676  0.354  1.0
  O  O29  1  0.880  0.612  0.151  1.0
  O  O30  1  0.863  0.898  0.112  1.0
  O  O31  1  0.431  0.824  0.891  1.0
  O  O32  1  0.612  0.392  0.359  1.0
  O  O33  1  0.169  0.317  0.142  1.0
  O  O34  1  0.264  0.988  0.098  1.0
  O  O35  1  0.955  0.164  0.266  1.0
  O  O36  1  0.011  0.486  0.350  1.0
  O  O37  1  0.703  0.662  0.515  1.0
  O  O38  1  0.560  0.839  0.240  1.0
  O  O39  1  0.260  0.005  0.378  1.0
  O  O40  1  0.297  0.338  0.485  1.0
  O  O41  1  0.989  0.514  0.650  1.0
  O  O42  1  0.074  0.187  0.610  1.0
  O  O43  1  0.652  0.107  0.399  1.0
  O  O44  1  0.831  0.683  0.858  1.0
  O  O45  1  0.388  0.608  0.641  1.0
  O  O46  1  0.348  0.893  0.601  1.0
  O  O47  1  0.926  0.813  0.390  1.0
  O  O48  1  0.120  0.388  0.849  1.0
  O  O49  1  0.674  0.324  0.646  1.0
  O  O50  1  0.740  0.995  0.622  1.0
  O  O51  1  0.440  0.161  0.760  1.0
  O  O52  1  0.518  0.489  0.852  1.0
  O  O53  1  0.045  0.836  0.734  1.0
[/CIF]
.