The structure described by LiNiSi4O10 crystallizes in the monoclinic P2/c space group. Li(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(3) atoms. Ni(1) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form distorted NiO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra and corners with two equivalent Si(2)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and corners with two equivalent Si(2)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Li(1), one Ni(1), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Li(1), one Ni(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to two equivalent Si(2) atoms. is represented by the CIF file [CIF]
data_LiSi4NiO10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.179
_cell_length_b   7.815
_cell_length_c   11.904
_cell_angle_alpha   67.177
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   444.134
_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  0.259  0.000  0.250  1.0
  Li  Li1  1  0.741  0.000  0.750  1.0
  Si  Si2  1  0.476  0.293  1.000  1.0
  Si  Si3  1  0.021  0.706  0.149  1.0
  Si  Si4  1  0.021  0.294  0.351  1.0
  Si  Si5  1  0.476  0.707  0.500  1.0
  Si  Si6  1  0.524  0.293  0.500  1.0
  Si  Si7  1  0.979  0.706  0.649  1.0
  Si  Si8  1  0.979  0.294  0.851  1.0
  Si  Si9  1  0.524  0.707  0.000  1.0
  Ni  Ni10  1  0.758  0.000  0.250  1.0
  Ni  Ni11  1  0.242  0.000  0.750  1.0
  O  O12  1  0.500  0.500  0.000  1.0
  O  O13  1  0.520  0.137  0.136  1.0
  O  O14  1  0.997  0.859  0.209  1.0
  O  O15  1  0.816  0.744  0.037  1.0
  O  O16  1  0.317  0.724  0.099  1.0
  O  O17  1  0.997  0.141  0.291  1.0
  O  O18  1  0.520  0.863  0.364  1.0
  O  O19  1  0.966  0.500  0.250  1.0
  O  O20  1  0.317  0.276  0.401  1.0
  O  O21  1  0.184  0.744  0.537  1.0
  O  O22  1  0.816  0.256  0.463  1.0
  O  O23  1  0.683  0.724  0.599  1.0
  O  O24  1  0.500  0.500  0.500  1.0
  O  O25  1  0.034  0.500  0.750  1.0
  O  O26  1  0.480  0.137  0.636  1.0
  O  O27  1  0.003  0.859  0.709  1.0
  O  O28  1  0.683  0.276  0.901  1.0
  O  O29  1  0.184  0.256  0.963  1.0
  O  O30  1  0.003  0.141  0.791  1.0
  O  O31  1  0.480  0.863  0.864  1.0
[/CIF]
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The structure described by LiNiSi4O10 crystallizes in the monoclinic P2/c space group. Li(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(3) atoms. Ni(1) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form distorted NiO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra and corners with two equivalent Si(2)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and corners with two equivalent Si(2)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Li(1), one Ni(1), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Li(1), one Ni(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to two equivalent Si(2) atoms. is represented by the CIF file [CIF]
data_LiSi4NiO10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.179
_cell_length_b   7.815
_cell_length_c   11.904
_cell_angle_alpha   67.177
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   444.134
_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  0.259  0.000  0.250  1.0
  Li  Li1  1  0.741  0.000  0.750  1.0
  Si  Si2  1  0.476  0.293  1.000  1.0
  Si  Si3  1  0.021  0.706  0.149  1.0
  Si  Si4  1  0.021  0.294  0.351  1.0
  Si  Si5  1  0.476  0.707  0.500  1.0
  Si  Si6  1  0.524  0.293  0.500  1.0
  Si  Si7  1  0.979  0.706  0.649  1.0
  Si  Si8  1  0.979  0.294  0.851  1.0
  Si  Si9  1  0.524  0.707  0.000  1.0
  Ni  Ni10  1  0.758  0.000  0.250  1.0
  Ni  Ni11  1  0.242  0.000  0.750  1.0
  O  O12  1  0.500  0.500  0.000  1.0
  O  O13  1  0.520  0.137  0.136  1.0
  O  O14  1  0.997  0.859  0.209  1.0
  O  O15  1  0.816  0.744  0.037  1.0
  O  O16  1  0.317  0.724  0.099  1.0
  O  O17  1  0.997  0.141  0.291  1.0
  O  O18  1  0.520  0.863  0.364  1.0
  O  O19  1  0.966  0.500  0.250  1.0
  O  O20  1  0.317  0.276  0.401  1.0
  O  O21  1  0.184  0.744  0.537  1.0
  O  O22  1  0.816  0.256  0.463  1.0
  O  O23  1  0.683  0.724  0.599  1.0
  O  O24  1  0.500  0.500  0.500  1.0
  O  O25  1  0.034  0.500  0.750  1.0
  O  O26  1  0.480  0.137  0.636  1.0
  O  O27  1  0.003  0.859  0.709  1.0
  O  O28  1  0.683  0.276  0.901  1.0
  O  O29  1  0.184  0.256  0.963  1.0
  O  O30  1  0.003  0.141  0.791  1.0
  O  O31  1  0.480  0.863  0.864  1.0
[/CIF]
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