The material structure described by Li2FeSiO4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Li(1) is bonded to four equivalent O(1) atoms to form LiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Fe(1)O4 tetrahedra, and corners with four equivalent Si(1)O4 tetrahedra. Fe(1) is bonded to four equivalent O(1) atoms to form distorted FeO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra and corners with eight equivalent Li(1)O4 tetrahedra. Si(1) is bonded to four equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Fe(1)O4 tetrahedra and corners with eight equivalent Li(1)O4 tetrahedra. O(1) is bonded to two equivalent Li(1), one Fe(1), and one Si(1) atom to form corner-sharing OLi2FeSi tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2FeSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.468
_cell_length_b   4.468
_cell_length_c   5.340
_cell_angle_alpha   114.706
_cell_angle_beta   114.703
_cell_angle_gamma   90.014
_symmetry_Int_Tables_number   1
_cell_volume   85.993
_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
  Fe  Fe0  1  0.000  0.000  0.000  1.0
  Li  Li1  1  0.250  0.750  0.500  1.0
  Li  Li2  1  0.750  0.250  0.500  1.0
  O  O3  1  0.602  0.175  0.777  1.0
  O  O4  1  0.175  0.602  0.777  1.0
  O  O5  1  0.825  0.825  0.222  1.0
  O  O6  1  0.398  0.398  0.224  1.0
  Si  Si7  1  0.500  0.500  0.000  1.0
[/CIF]
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The material structure described by Li2FeSiO4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Li(1) is bonded to four equivalent O(1) atoms to form LiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Fe(1)O4 tetrahedra, and corners with four equivalent Si(1)O4 tetrahedra. Fe(1) is bonded to four equivalent O(1) atoms to form distorted FeO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra and corners with eight equivalent Li(1)O4 tetrahedra. Si(1) is bonded to four equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Fe(1)O4 tetrahedra and corners with eight equivalent Li(1)O4 tetrahedra. O(1) is bonded to two equivalent Li(1), one Fe(1), and one Si(1) atom to form corner-sharing OLi2FeSi tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2FeSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.468
_cell_length_b   4.468
_cell_length_c   5.340
_cell_angle_alpha   114.706
_cell_angle_beta   114.703
_cell_angle_gamma   90.014
_symmetry_Int_Tables_number   1
_cell_volume   85.993
_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
  Fe  Fe0  1  0.000  0.000  0.000  1.0
  Li  Li1  1  0.250  0.750  0.500  1.0
  Li  Li2  1  0.750  0.250  0.500  1.0
  O  O3  1  0.602  0.175  0.777  1.0
  O  O4  1  0.175  0.602  0.777  1.0
  O  O5  1  0.825  0.825  0.222  1.0
  O  O6  1  0.398  0.398  0.224  1.0
  Si  Si7  1  0.500  0.500  0.000  1.0
[/CIF]
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