The material described by Li6Ti3Cr(PO4)6 crystallizes in the triclinic P1 space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(18), one O(22), one O(3), and one O(7) atom. In the second Li site, Li(2) is bonded in a 6-coordinate geometry to one O(14), one O(19), one O(3), one O(4), one O(8), and one O(9) atom. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to one O(16), one O(17), one O(20), one O(5), one O(8), and one O(9) atom. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(11), one O(16), one O(17), one O(21), one O(22), and one O(6) atom. In the fifth Li site, Li(5) is bonded in a 6-coordinate geometry to one O(13), one O(16), one O(18), one O(20), one O(22), and one O(23) atom. In the sixth Li site, Li(6) is bonded in a 4-coordinate geometry to one O(11), one O(15), one O(17), and one O(18) atom. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(12), one O(14), one O(19), one O(3), and one O(7) atom to form TiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the second Ti site, Ti(2) is bonded to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the third Ti site, Ti(3) is bonded to one O(16), one O(17), one O(20), one O(21), one O(23), and one O(24) atom to form TiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. Cr(1) is bonded to one O(11), one O(13), one O(15), one O(18), one O(22), and one O(6) atom to form distorted CrO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(24), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-44°. In the second P site, P(2) is bonded to one O(13), one O(21), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-47°. In the third P site, P(3) is bonded to one O(14), one O(15), one O(23), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-44°. In the fourth P site, P(4) is bonded to one O(10), one O(11), one O(16), and one O(2) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-50°. In the fifth P site, P(5) is bonded to one O(12), one O(17), one O(18), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-45°. In the sixth P site, P(6) is bonded to one O(1), one O(19), one O(20), and one O(22) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-44°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ti(2) and one P(6) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Ti(2) and one P(4) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Li(2), one Ti(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(2), one Ti(2), and one P(5) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(3), one Ti(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(4), one Cr(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Li(1), one Ti(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Ti(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Li(2), one Li(3), one Ti(2), and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Ti(1) and one P(4) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Li(1), one Li(4), one Li(6), one Cr(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Ti(1) and one P(5) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Li(5), one Cr(1), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(1), one Li(2), one Ti(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a distorted T-shaped geometry to one Li(6), one Cr(1), and one P(3) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one Li(5), one Ti(3), and one P(4) atom. In the seventeenth O site, O(17) is bonded in a 5-coordinate geometry to one Li(3), one Li(4), one Li(6), one Ti(3), and one P(5) atom. In the eighteenth O site, O(18) is bonded in a 5-coordinate geometry to one Li(1), one Li(5), one Li(6), one Cr(1), and one P(5) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Li(2), one Ti(1), and one P(6) atom. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Li(3), one Li(5), one Ti(3), and one P(6) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 150 degrees geometry to one Li(4), one Ti(3), and one P(2) atom. In the twenty-second O site, O(22) is bonded in a 5-coordinate geometry to one Li(1), one Li(4), one Li(5), one Cr(1), and one P(6) atom. In the twenty-third O site, O(23) is bonded in a distorted bent 150 degrees geometry to one Li(5), one Ti(3), and one P(3) atom. In the twenty-fourth O site, O(24) is bonded in a bent 150 degrees geometry to one Ti(3) and one P(1) atom. is represented by the CIF card [CIF]
data_Li6Ti3Cr(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.577
_cell_length_b   8.608
_cell_length_c   8.672
_cell_angle_alpha   62.057
_cell_angle_beta   62.154
_cell_angle_gamma   62.827
_symmetry_Int_Tables_number   1
_cell_volume   476.389
_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  0.974  0.005  1.0
  Li  Li1  1  0.849  0.248  0.655  1.0
  Li  Li2  1  0.492  0.527  0.505  1.0
  Li  Li3  1  0.165  0.768  0.338  1.0
  Li  Li4  1  0.769  0.342  0.163  1.0
  Li  Li5  1  0.334  0.164  0.775  1.0
  Ti  Ti6  1  0.855  0.853  0.864  1.0
  Ti  Ti7  1  0.640  0.646  0.645  1.0
  Ti  Ti8  1  0.350  0.353  0.350  1.0
  Cr  Cr9  1  0.146  0.147  0.154  1.0
  P  P10  1  0.249  0.944  0.553  1.0
  P  P11  1  0.940  0.555  0.250  1.0
  P  P12  1  0.549  0.248  0.950  1.0
  P  P13  1  0.459  0.744  0.041  1.0
  P  P14  1  0.040  0.459  0.747  1.0
  P  P15  1  0.748  0.046  0.463  1.0
  O  O16  1  0.694  0.878  0.510  1.0
  O  O17  1  0.512  0.675  0.883  1.0
  O  O18  1  0.079  0.948  0.733  1.0
  O  O19  1  0.883  0.487  0.687  1.0
  O  O20  1  0.405  0.758  0.587  1.0
  O  O21  1  0.202  0.955  0.397  1.0
  O  O22  1  0.927  0.745  0.093  1.0
  O  O23  1  0.760  0.568  0.420  1.0
  O  O24  1  0.579  0.404  0.757  1.0
  O  O25  1  0.618  0.807  0.004  1.0
  O  O26  1  0.270  0.895  0.053  1.0
  O  O27  1  0.997  0.627  0.798  1.0
  O  O28  1  0.950  0.407  0.193  1.0
  O  O29  1  0.741  0.094  0.927  1.0
  O  O30  1  0.391  0.193  0.973  1.0
  O  O31  1  0.438  0.587  0.233  1.0
  O  O32  1  0.231  0.441  0.587  1.0
  O  O33  1  0.059  0.273  0.906  1.0
  O  O34  1  0.798  0.024  0.623  1.0
  O  O35  1  0.588  0.231  0.434  1.0
  O  O36  1  0.111  0.508  0.301  1.0
  O  O37  1  0.909  0.061  0.276  1.0
  O  O38  1  0.514  0.304  0.111  1.0
  O  O39  1  0.305  0.112  0.507  1.0
[/CIF]
.
The material described by Li6Ti3Cr(PO4)6 crystallizes in the triclinic P1 space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(18), one O(22), one O(3), and one O(7) atom. In the second Li site, Li(2) is bonded in a 6-coordinate geometry to one O(14), one O(19), one O(3), one O(4), one O(8), and one O(9) atom. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to one O(16), one O(17), one O(20), one O(5), one O(8), and one O(9) atom. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(11), one O(16), one O(17), one O(21), one O(22), and one O(6) atom. In the fifth Li site, Li(5) is bonded in a 6-coordinate geometry to one O(13), one O(16), one O(18), one O(20), one O(22), and one O(23) atom. In the sixth Li site, Li(6) is bonded in a 4-coordinate geometry to one O(11), one O(15), one O(17), and one O(18) atom. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(12), one O(14), one O(19), one O(3), and one O(7) atom to form TiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the second Ti site, Ti(2) is bonded to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the third Ti site, Ti(3) is bonded to one O(16), one O(17), one O(20), one O(21), one O(23), and one O(24) atom to form TiO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. Cr(1) is bonded to one O(11), one O(13), one O(15), one O(18), one O(22), and one O(6) atom to form distorted CrO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(24), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-44°. In the second P site, P(2) is bonded to one O(13), one O(21), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-47°. In the third P site, P(3) is bonded to one O(14), one O(15), one O(23), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-44°. In the fourth P site, P(4) is bonded to one O(10), one O(11), one O(16), and one O(2) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-50°. In the fifth P site, P(5) is bonded to one O(12), one O(17), one O(18), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-45°. In the sixth P site, P(6) is bonded to one O(1), one O(19), one O(20), and one O(22) atom to form PO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra, and  a cornercorner with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-44°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ti(2) and one P(6) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Ti(2) and one P(4) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Li(2), one Ti(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(2), one Ti(2), and one P(5) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(3), one Ti(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(4), one Cr(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Li(1), one Ti(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Ti(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Li(2), one Li(3), one Ti(2), and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Ti(1) and one P(4) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Li(1), one Li(4), one Li(6), one Cr(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Ti(1) and one P(5) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Li(5), one Cr(1), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(1), one Li(2), one Ti(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a distorted T-shaped geometry to one Li(6), one Cr(1), and one P(3) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one Li(5), one Ti(3), and one P(4) atom. In the seventeenth O site, O(17) is bonded in a 5-coordinate geometry to one Li(3), one Li(4), one Li(6), one Ti(3), and one P(5) atom. In the eighteenth O site, O(18) is bonded in a 5-coordinate geometry to one Li(1), one Li(5), one Li(6), one Cr(1), and one P(5) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Li(2), one Ti(1), and one P(6) atom. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Li(3), one Li(5), one Ti(3), and one P(6) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 150 degrees geometry to one Li(4), one Ti(3), and one P(2) atom. In the twenty-second O site, O(22) is bonded in a 5-coordinate geometry to one Li(1), one Li(4), one Li(5), one Cr(1), and one P(6) atom. In the twenty-third O site, O(23) is bonded in a distorted bent 150 degrees geometry to one Li(5), one Ti(3), and one P(3) atom. In the twenty-fourth O site, O(24) is bonded in a bent 150 degrees geometry to one Ti(3) and one P(1) atom. is represented by the CIF card [CIF]
data_Li6Ti3Cr(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.577
_cell_length_b   8.608
_cell_length_c   8.672
_cell_angle_alpha   62.057
_cell_angle_beta   62.154
_cell_angle_gamma   62.827
_symmetry_Int_Tables_number   1
_cell_volume   476.389
_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  0.974  0.005  1.0
  Li  Li1  1  0.849  0.248  0.655  1.0
  Li  Li2  1  0.492  0.527  0.505  1.0
  Li  Li3  1  0.165  0.768  0.338  1.0
  Li  Li4  1  0.769  0.342  0.163  1.0
  Li  Li5  1  0.334  0.164  0.775  1.0
  Ti  Ti6  1  0.855  0.853  0.864  1.0
  Ti  Ti7  1  0.640  0.646  0.645  1.0
  Ti  Ti8  1  0.350  0.353  0.350  1.0
  Cr  Cr9  1  0.146  0.147  0.154  1.0
  P  P10  1  0.249  0.944  0.553  1.0
  P  P11  1  0.940  0.555  0.250  1.0
  P  P12  1  0.549  0.248  0.950  1.0
  P  P13  1  0.459  0.744  0.041  1.0
  P  P14  1  0.040  0.459  0.747  1.0
  P  P15  1  0.748  0.046  0.463  1.0
  O  O16  1  0.694  0.878  0.510  1.0
  O  O17  1  0.512  0.675  0.883  1.0
  O  O18  1  0.079  0.948  0.733  1.0
  O  O19  1  0.883  0.487  0.687  1.0
  O  O20  1  0.405  0.758  0.587  1.0
  O  O21  1  0.202  0.955  0.397  1.0
  O  O22  1  0.927  0.745  0.093  1.0
  O  O23  1  0.760  0.568  0.420  1.0
  O  O24  1  0.579  0.404  0.757  1.0
  O  O25  1  0.618  0.807  0.004  1.0
  O  O26  1  0.270  0.895  0.053  1.0
  O  O27  1  0.997  0.627  0.798  1.0
  O  O28  1  0.950  0.407  0.193  1.0
  O  O29  1  0.741  0.094  0.927  1.0
  O  O30  1  0.391  0.193  0.973  1.0
  O  O31  1  0.438  0.587  0.233  1.0
  O  O32  1  0.231  0.441  0.587  1.0
  O  O33  1  0.059  0.273  0.906  1.0
  O  O34  1  0.798  0.024  0.623  1.0
  O  O35  1  0.588  0.231  0.434  1.0
  O  O36  1  0.111  0.508  0.301  1.0
  O  O37  1  0.909  0.061  0.276  1.0
  O  O38  1  0.514  0.304  0.111  1.0
  O  O39  1  0.305  0.112  0.507  1.0
[/CIF]
.