The compound described by Li2CrSiO4 crystallizes in the monoclinic Pc space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with four equivalent Cr(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, corners with two equivalent Li(2)O4 trigonal pyramids, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 trigonal pyramids that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Cr(1)O4 tetrahedra, and  an edgeedge with one Si(1)O4 tetrahedra. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, corners with two equivalent Li(2)O4 trigonal pyramids, and  an edgeedge with one Li(2)O4 trigonal pyramid. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Cr(1)O4 tetrahedra, corners with two equivalent Li(2)O4 trigonal pyramids, and  an edgeedge with one Li(2)O4 trigonal pyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Li(2), one Cr(1), and one Si(1) atom. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of edge and corner-sharing OLi2CrSi trigonal pyramids. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of edge and corner-sharing OLi2CrSi trigonal pyramids. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi tetrahedra. is represented by the CIF card [CIF]
data_Li2CrSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.081
_cell_length_b   5.293
_cell_length_c   8.577
_cell_angle_alpha   53.388
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.152
_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
  Li  Li0  1  0.835  0.480  0.008  1.0
  Li  Li1  1  0.319  0.359  0.250  1.0
  Li  Li2  1  0.165  0.480  0.508  1.0
  Li  Li3  1  0.681  0.359  0.750  1.0
  Cr  Cr4  1  0.180  0.005  0.996  1.0
  Cr  Cr5  1  0.820  0.005  0.496  1.0
  Si  Si6  1  0.673  0.726  0.254  1.0
  Si  Si7  1  0.327  0.726  0.754  1.0
  O  O8  1  0.789  0.059  0.059  1.0
  O  O9  1  0.347  0.733  0.261  1.0
  O  O10  1  0.744  0.432  0.241  1.0
  O  O11  1  0.786  0.643  0.460  1.0
  O  O12  1  0.211  0.059  0.559  1.0
  O  O13  1  0.653  0.733  0.761  1.0
  O  O14  1  0.256  0.432  0.741  1.0
  O  O15  1  0.214  0.643  0.960  1.0
[/CIF]
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The compound described by Li2CrSiO4 crystallizes in the monoclinic Pc space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with four equivalent Cr(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, corners with two equivalent Li(2)O4 trigonal pyramids, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 trigonal pyramids that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Cr(1)O4 tetrahedra, and  an edgeedge with one Si(1)O4 tetrahedra. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, corners with two equivalent Li(2)O4 trigonal pyramids, and  an edgeedge with one Li(2)O4 trigonal pyramid. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Cr(1)O4 tetrahedra, corners with two equivalent Li(2)O4 trigonal pyramids, and  an edgeedge with one Li(2)O4 trigonal pyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Li(2), one Cr(1), and one Si(1) atom. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of edge and corner-sharing OLi2CrSi trigonal pyramids. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of edge and corner-sharing OLi2CrSi trigonal pyramids. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi tetrahedra. is represented by the CIF card [CIF]
data_Li2CrSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.081
_cell_length_b   5.293
_cell_length_c   8.577
_cell_angle_alpha   53.388
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.152
_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
  Li  Li0  1  0.835  0.480  0.008  1.0
  Li  Li1  1  0.319  0.359  0.250  1.0
  Li  Li2  1  0.165  0.480  0.508  1.0
  Li  Li3  1  0.681  0.359  0.750  1.0
  Cr  Cr4  1  0.180  0.005  0.996  1.0
  Cr  Cr5  1  0.820  0.005  0.496  1.0
  Si  Si6  1  0.673  0.726  0.254  1.0
  Si  Si7  1  0.327  0.726  0.754  1.0
  O  O8  1  0.789  0.059  0.059  1.0
  O  O9  1  0.347  0.733  0.261  1.0
  O  O10  1  0.744  0.432  0.241  1.0
  O  O11  1  0.786  0.643  0.460  1.0
  O  O12  1  0.211  0.059  0.559  1.0
  O  O13  1  0.653  0.733  0.761  1.0
  O  O14  1  0.256  0.432  0.741  1.0
  O  O15  1  0.214  0.643  0.960  1.0
[/CIF]
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