The structure described by Li2CrSi7O16 crystallizes in the triclinic P1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(10), one O(2), one O(6), and one O(8) atom. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(11), one O(13), one O(16), and one O(7) atom. Cr(1) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(13), one O(16), and one O(6) atom. There are seven inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(11), one O(2), one O(3), and one O(7) atom to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(1), one O(12), one O(4), and one O(7) atom to form corner-sharing SiO4 tetrahedra. In the third Si site, Si(3) is bonded to one O(1), one O(14), one O(6), and one O(9) atom to form corner-sharing SiO4 tetrahedra. In the fourth Si site, Si(4) is bonded to one O(13), one O(2), one O(5), and one O(8) atom to form corner-sharing SiO4 tetrahedra. In the fifth Si site, Si(5) is bonded to one O(12), one O(16), one O(3), and one O(8) atom to form corner-sharing SiO4 tetrahedra. In the sixth Si site, Si(6) is bonded to one O(11), one O(15), one O(4), and one O(9) atom to form corner-sharing SiO4 tetrahedra. In the seventh Si site, Si(7) is bonded to one O(10), one O(14), one O(15), and one O(5) atom to form corner-sharing SiO4 tetrahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Si(2) and one Si(3) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Si(1), and one Si(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(5) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Si(2) and one Si(6) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Si(4) and one Si(7) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(1), one Cr(1), and one Si(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Li(2), one Si(1), and one Si(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Li(1), one Si(4), and one Si(5) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Si(3) and one Si(6) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Li(1), one Cr(1), and one Si(7) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Li(2), one Si(1), and one Si(6) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Si(2) and one Si(5) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Li(2), one Cr(1), and one Si(4) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one Si(3) and one Si(7) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Si(6) and one Si(7) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Li(2), one Cr(1), and one Si(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2CrSi7O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.741
_cell_length_b   7.672
_cell_length_c   7.263
_cell_angle_alpha   77.226
_cell_angle_beta   103.848
_cell_angle_gamma   63.041
_symmetry_Int_Tables_number   1
_cell_volume   345.137
_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  0.457  0.707  0.721  1.0
  Li  Li1  1  0.771  0.383  0.364  1.0
  Cr  Cr2  1  0.860  0.358  0.871  1.0
  Si  Si3  1  0.404  0.813  0.138  1.0
  Si  Si4  1  0.173  0.587  0.155  1.0
  Si  Si5  1  0.816  0.825  0.721  1.0
  Si  Si6  1  0.201  0.125  0.706  1.0
  Si  Si7  1  0.161  0.193  0.275  1.0
  Si  Si8  1  0.795  0.840  0.282  1.0
  Si  Si9  1  0.547  0.207  0.840  1.0
  O  O10  1  0.052  0.708  0.908  1.0
  O  O11  1  0.342  0.882  0.890  1.0
  O  O12  1  0.240  0.022  0.165  1.0
  O  O13  1  0.020  0.687  0.272  1.0
  O  O14  1  0.304  0.258  0.767  1.0
  O  O15  1  0.720  0.680  0.747  1.0
  O  O16  1  0.379  0.613  0.223  1.0
  O  O17  1  0.255  0.051  0.520  1.0
  O  O18  1  0.842  0.871  0.499  1.0
  O  O19  1  0.547  0.419  0.790  1.0
  O  O20  1  0.652  0.727  0.264  1.0
  O  O21  1  0.269  0.333  0.236  1.0
  O  O22  1  0.952  0.257  0.652  1.0
  O  O23  1  0.671  0.056  0.728  1.0
  O  O24  1  0.662  0.065  0.091  1.0
  O  O25  1  0.909  0.332  0.174  1.0
[/CIF]
.
The structure described by Li2CrSi7O16 crystallizes in the triclinic P1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(10), one O(2), one O(6), and one O(8) atom. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(11), one O(13), one O(16), and one O(7) atom. Cr(1) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(13), one O(16), and one O(6) atom. There are seven inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(11), one O(2), one O(3), and one O(7) atom to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(1), one O(12), one O(4), and one O(7) atom to form corner-sharing SiO4 tetrahedra. In the third Si site, Si(3) is bonded to one O(1), one O(14), one O(6), and one O(9) atom to form corner-sharing SiO4 tetrahedra. In the fourth Si site, Si(4) is bonded to one O(13), one O(2), one O(5), and one O(8) atom to form corner-sharing SiO4 tetrahedra. In the fifth Si site, Si(5) is bonded to one O(12), one O(16), one O(3), and one O(8) atom to form corner-sharing SiO4 tetrahedra. In the sixth Si site, Si(6) is bonded to one O(11), one O(15), one O(4), and one O(9) atom to form corner-sharing SiO4 tetrahedra. In the seventh Si site, Si(7) is bonded to one O(10), one O(14), one O(15), and one O(5) atom to form corner-sharing SiO4 tetrahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Si(2) and one Si(3) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Si(1), and one Si(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(5) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Si(2) and one Si(6) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Si(4) and one Si(7) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(1), one Cr(1), and one Si(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Li(2), one Si(1), and one Si(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Li(1), one Si(4), and one Si(5) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Si(3) and one Si(6) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Li(1), one Cr(1), and one Si(7) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Li(2), one Si(1), and one Si(6) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Si(2) and one Si(5) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Li(2), one Cr(1), and one Si(4) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one Si(3) and one Si(7) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Si(6) and one Si(7) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Li(2), one Cr(1), and one Si(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2CrSi7O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.741
_cell_length_b   7.672
_cell_length_c   7.263
_cell_angle_alpha   77.226
_cell_angle_beta   103.848
_cell_angle_gamma   63.041
_symmetry_Int_Tables_number   1
_cell_volume   345.137
_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  0.457  0.707  0.721  1.0
  Li  Li1  1  0.771  0.383  0.364  1.0
  Cr  Cr2  1  0.860  0.358  0.871  1.0
  Si  Si3  1  0.404  0.813  0.138  1.0
  Si  Si4  1  0.173  0.587  0.155  1.0
  Si  Si5  1  0.816  0.825  0.721  1.0
  Si  Si6  1  0.201  0.125  0.706  1.0
  Si  Si7  1  0.161  0.193  0.275  1.0
  Si  Si8  1  0.795  0.840  0.282  1.0
  Si  Si9  1  0.547  0.207  0.840  1.0
  O  O10  1  0.052  0.708  0.908  1.0
  O  O11  1  0.342  0.882  0.890  1.0
  O  O12  1  0.240  0.022  0.165  1.0
  O  O13  1  0.020  0.687  0.272  1.0
  O  O14  1  0.304  0.258  0.767  1.0
  O  O15  1  0.720  0.680  0.747  1.0
  O  O16  1  0.379  0.613  0.223  1.0
  O  O17  1  0.255  0.051  0.520  1.0
  O  O18  1  0.842  0.871  0.499  1.0
  O  O19  1  0.547  0.419  0.790  1.0
  O  O20  1  0.652  0.727  0.264  1.0
  O  O21  1  0.269  0.333  0.236  1.0
  O  O22  1  0.952  0.257  0.652  1.0
  O  O23  1  0.671  0.056  0.728  1.0
  O  O24  1  0.662  0.065  0.091  1.0
  O  O25  1  0.909  0.332  0.174  1.0
[/CIF]
.