The structure described by Li6CuB4O10 crystallizes in the triclinic P1 space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(10), one O(4), one O(8), and one O(9) atom to form a mixture of distorted edge and corner-sharing LiO4 trigonal pyramids. In the second Li site, Li(2) is bonded in a 5-coordinate geometry to one O(10), one O(5), one O(6), one O(7), and one O(8) atom. In the third Li site, Li(3) is bonded to one O(1), one O(3), one O(5), and one O(9) atom to form a mixture of distorted edge and corner-sharing LiO4 tetrahedra. In the fourth Li site, Li(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(8) atom. In the fifth Li site, Li(5) is bonded to one O(1), one O(10), one O(8), and one O(9) atom to form a mixture of distorted edge and corner-sharing LiO4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form corner-sharing LiO4 trigonal pyramids. Cu(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(7) atom. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(8) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(2), one O(6), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(10), one O(5), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Li(3), one Li(4), one Li(5), one Li(6), and one B(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(4), one Cu(1), and one B(3) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(3), one Li(4), one Cu(1), and one B(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(1), one Li(6), one Cu(1), and one B(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one B(1), and one B(4) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(2), one B(2), and one B(3) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Li(2), one Li(6), one Cu(1), and one B(4) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Li(1), one Li(2), one Li(4), one Li(5), and one B(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Li(1), one Li(3), one Li(5), and one B(3) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Li(1), one Li(2), one Li(5), one Li(6), and one B(4) atom. is represented by the CIF card [CIF]
data_Li6Cu(B2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.798
_cell_length_b   6.462
_cell_length_c   7.281
_cell_angle_alpha   80.532
_cell_angle_beta   71.255
_cell_angle_gamma   75.123
_symmetry_Int_Tables_number   1
_cell_volume   205.752
_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  0.459  0.640  0.279  1.0
  Li  Li1  1  0.743  0.842  0.996  1.0
  Li  Li2  1  0.898  0.971  0.627  1.0
  Li  Li3  1  0.867  0.368  0.438  1.0
  Li  Li4  1  0.944  0.833  0.342  1.0
  Li  Li5  1  0.519  0.151  0.221  1.0
  Cu  Cu6  1  0.750  0.324  0.842  1.0
  B  B7  1  0.384  0.112  0.619  1.0
  B  B8  1  0.137  0.542  0.058  1.0
  B  B9  1  0.282  0.607  0.680  1.0
  B  B10  1  0.218  0.018  0.991  1.0
  O  O11  1  0.634  0.088  0.461  1.0
  O  O12  1  0.571  0.496  0.652  1.0
  O  O13  1  0.097  0.202  0.611  1.0
  O  O14  1  0.413  0.429  0.075  1.0
  O  O15  1  0.439  0.028  0.804  1.0
  O  O16  1  0.081  0.621  0.875  1.0
  O  O17  1  0.914  0.087  0.011  1.0
  O  O18  1  0.895  0.598  0.216  1.0
  O  O19  1  0.171  0.713  0.533  1.0
  O  O20  1  0.325  0.929  0.144  1.0
[/CIF]
.
The structure described by Li6CuB4O10 crystallizes in the triclinic P1 space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(10), one O(4), one O(8), and one O(9) atom to form a mixture of distorted edge and corner-sharing LiO4 trigonal pyramids. In the second Li site, Li(2) is bonded in a 5-coordinate geometry to one O(10), one O(5), one O(6), one O(7), and one O(8) atom. In the third Li site, Li(3) is bonded to one O(1), one O(3), one O(5), and one O(9) atom to form a mixture of distorted edge and corner-sharing LiO4 tetrahedra. In the fourth Li site, Li(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(8) atom. In the fifth Li site, Li(5) is bonded to one O(1), one O(10), one O(8), and one O(9) atom to form a mixture of distorted edge and corner-sharing LiO4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form corner-sharing LiO4 trigonal pyramids. Cu(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(7) atom. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(8) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(2), one O(6), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(10), one O(5), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Li(3), one Li(4), one Li(5), one Li(6), and one B(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(4), one Cu(1), and one B(3) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(3), one Li(4), one Cu(1), and one B(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(1), one Li(6), one Cu(1), and one B(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one B(1), and one B(4) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(2), one B(2), and one B(3) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Li(2), one Li(6), one Cu(1), and one B(4) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Li(1), one Li(2), one Li(4), one Li(5), and one B(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Li(1), one Li(3), one Li(5), and one B(3) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Li(1), one Li(2), one Li(5), one Li(6), and one B(4) atom. is represented by the CIF card [CIF]
data_Li6Cu(B2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.798
_cell_length_b   6.462
_cell_length_c   7.281
_cell_angle_alpha   80.532
_cell_angle_beta   71.255
_cell_angle_gamma   75.123
_symmetry_Int_Tables_number   1
_cell_volume   205.752
_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  0.459  0.640  0.279  1.0
  Li  Li1  1  0.743  0.842  0.996  1.0
  Li  Li2  1  0.898  0.971  0.627  1.0
  Li  Li3  1  0.867  0.368  0.438  1.0
  Li  Li4  1  0.944  0.833  0.342  1.0
  Li  Li5  1  0.519  0.151  0.221  1.0
  Cu  Cu6  1  0.750  0.324  0.842  1.0
  B  B7  1  0.384  0.112  0.619  1.0
  B  B8  1  0.137  0.542  0.058  1.0
  B  B9  1  0.282  0.607  0.680  1.0
  B  B10  1  0.218  0.018  0.991  1.0
  O  O11  1  0.634  0.088  0.461  1.0
  O  O12  1  0.571  0.496  0.652  1.0
  O  O13  1  0.097  0.202  0.611  1.0
  O  O14  1  0.413  0.429  0.075  1.0
  O  O15  1  0.439  0.028  0.804  1.0
  O  O16  1  0.081  0.621  0.875  1.0
  O  O17  1  0.914  0.087  0.011  1.0
  O  O18  1  0.895  0.598  0.216  1.0
  O  O19  1  0.171  0.713  0.533  1.0
  O  O20  1  0.325  0.929  0.144  1.0
[/CIF]
.