The crystal structure described by Li2Ni5Si4O14 crystallizes in the triclinic P-1 space group. Li(1) is bonded to one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form distorted LiO5 trigonal bipyramids that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, corners with two equivalent Ni(1)O5 trigonal bipyramids,  an edgeedge with one Si(2)O4 tetrahedra, and  an edgeedge with one Li(1)O5 trigonal bipyramid. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(4), one O(5), one O(7), and two equivalent O(6) atoms to form distorted NiO5 trigonal bipyramids that share corners with two equivalent Si(1)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, and  an edgeedge with one Ni(1)O5 trigonal bipyramid. In the second Ni site, Ni(2) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(7) atoms. In the third Ni site, Ni(3) is bonded in a see-saw-like geometry to one O(1), one O(4), and two equivalent O(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(3), one O(4), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, and corners with two equivalent Ni(1)O5 trigonal bipyramids. In the second Si site, Si(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, corners with three equivalent Ni(1)O5 trigonal bipyramids, and  an edgeedge with one Li(1)O5 trigonal bipyramid. There are seven inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Li(1), one Ni(3), and one Si(2) atom to form OLi2SiNi trigonal pyramids that share  a cornercorner with one O(4)LiSiNi2 tetrahedra,  a cornercorner with one O(5)LiSiNi2 trigonal pyramid,  an edgeedge with one O(4)LiSiNi2 tetrahedra,  an edgeedge with one O(1)Li2SiNi trigonal pyramid, and  an edgeedge with one O(5)LiSiNi2 trigonal pyramid. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Ni(3) and one Si(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Si(1), and one Si(2) atom. In the fourth O site, O(4) is bonded to one Li(1), one Ni(1), one Ni(3), and one Si(1) atom to form distorted OLiSiNi2 tetrahedra that share  a cornercorner with one O(1)Li2SiNi trigonal pyramid, corners with two equivalent O(5)LiSiNi2 trigonal pyramids, and  an edgeedge with one O(1)Li2SiNi trigonal pyramid. In the fifth O site, O(5) is bonded to one Li(1), one Ni(1), one Ni(2), and one Si(2) atom to form distorted OLiSiNi2 trigonal pyramids that share corners with two equivalent O(4)LiSiNi2 tetrahedra,  a cornercorner with one O(1)Li2SiNi trigonal pyramid,  a cornercorner with one O(5)LiSiNi2 trigonal pyramid, and  an edgeedge with one O(1)Li2SiNi trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Ni(1) and one Si(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ni(1), one Ni(2), and one Si(1) atom. is represented by the CIF file [CIF]
data_Li2Si4Ni5O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.385
_cell_length_b   7.397
_cell_length_c   7.947
_cell_angle_alpha   114.209
_cell_angle_beta   91.190
_cell_angle_gamma   104.312
_symmetry_Int_Tables_number   1
_cell_volume   277.084
_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  0.230  0.101  0.455  1.0
  Li  Li1  1  0.770  0.899  0.545  1.0
  Si  Si2  1  0.510  0.220  0.864  1.0
  Si  Si3  1  0.490  0.780  0.136  1.0
  Si  Si4  1  0.796  0.215  0.394  1.0
  Si  Si5  1  0.204  0.785  0.606  1.0
  Ni  Ni6  1  0.632  0.587  0.704  1.0
  Ni  Ni7  1  0.368  0.414  0.296  1.0
  Ni  Ni8  1  1.000  0.000  1.000  1.0
  Ni  Ni9  1  0.085  0.409  0.810  1.0
  Ni  Ni10  1  0.916  0.591  0.191  1.0
  O  O11  1  0.892  0.189  0.576  1.0
  O  O12  1  0.108  0.811  0.424  1.0
  O  O13  1  0.814  0.326  0.960  1.0
  O  O14  1  0.186  0.674  0.040  1.0
  O  O15  1  0.526  0.024  0.285  1.0
  O  O16  1  0.474  0.976  0.715  1.0
  O  O17  1  0.417  0.335  0.744  1.0
  O  O18  1  0.584  0.665  0.256  1.0
  O  O19  1  0.034  0.187  0.268  1.0
  O  O20  1  0.966  0.813  0.732  1.0
  O  O21  1  0.700  0.420  0.433  1.0
  O  O22  1  0.300  0.579  0.567  1.0
  O  O23  1  0.322  0.220  0.022  1.0
  O  O24  1  0.678  0.780  0.978  1.0
[/CIF]
.
The crystal structure described by Li2Ni5Si4O14 crystallizes in the triclinic P-1 space group. Li(1) is bonded to one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form distorted LiO5 trigonal bipyramids that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, corners with two equivalent Ni(1)O5 trigonal bipyramids,  an edgeedge with one Si(2)O4 tetrahedra, and  an edgeedge with one Li(1)O5 trigonal bipyramid. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(4), one O(5), one O(7), and two equivalent O(6) atoms to form distorted NiO5 trigonal bipyramids that share corners with two equivalent Si(1)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, and  an edgeedge with one Ni(1)O5 trigonal bipyramid. In the second Ni site, Ni(2) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(7) atoms. In the third Ni site, Ni(3) is bonded in a see-saw-like geometry to one O(1), one O(4), and two equivalent O(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(3), one O(4), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, and corners with two equivalent Ni(1)O5 trigonal bipyramids. In the second Si site, Si(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, corners with three equivalent Ni(1)O5 trigonal bipyramids, and  an edgeedge with one Li(1)O5 trigonal bipyramid. There are seven inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Li(1), one Ni(3), and one Si(2) atom to form OLi2SiNi trigonal pyramids that share  a cornercorner with one O(4)LiSiNi2 tetrahedra,  a cornercorner with one O(5)LiSiNi2 trigonal pyramid,  an edgeedge with one O(4)LiSiNi2 tetrahedra,  an edgeedge with one O(1)Li2SiNi trigonal pyramid, and  an edgeedge with one O(5)LiSiNi2 trigonal pyramid. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Ni(3) and one Si(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Si(1), and one Si(2) atom. In the fourth O site, O(4) is bonded to one Li(1), one Ni(1), one Ni(3), and one Si(1) atom to form distorted OLiSiNi2 tetrahedra that share  a cornercorner with one O(1)Li2SiNi trigonal pyramid, corners with two equivalent O(5)LiSiNi2 trigonal pyramids, and  an edgeedge with one O(1)Li2SiNi trigonal pyramid. In the fifth O site, O(5) is bonded to one Li(1), one Ni(1), one Ni(2), and one Si(2) atom to form distorted OLiSiNi2 trigonal pyramids that share corners with two equivalent O(4)LiSiNi2 tetrahedra,  a cornercorner with one O(1)Li2SiNi trigonal pyramid,  a cornercorner with one O(5)LiSiNi2 trigonal pyramid, and  an edgeedge with one O(1)Li2SiNi trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Ni(1) and one Si(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ni(1), one Ni(2), and one Si(1) atom. is represented by the CIF file [CIF]
data_Li2Si4Ni5O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.385
_cell_length_b   7.397
_cell_length_c   7.947
_cell_angle_alpha   114.209
_cell_angle_beta   91.190
_cell_angle_gamma   104.312
_symmetry_Int_Tables_number   1
_cell_volume   277.084
_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  0.230  0.101  0.455  1.0
  Li  Li1  1  0.770  0.899  0.545  1.0
  Si  Si2  1  0.510  0.220  0.864  1.0
  Si  Si3  1  0.490  0.780  0.136  1.0
  Si  Si4  1  0.796  0.215  0.394  1.0
  Si  Si5  1  0.204  0.785  0.606  1.0
  Ni  Ni6  1  0.632  0.587  0.704  1.0
  Ni  Ni7  1  0.368  0.414  0.296  1.0
  Ni  Ni8  1  1.000  0.000  1.000  1.0
  Ni  Ni9  1  0.085  0.409  0.810  1.0
  Ni  Ni10  1  0.916  0.591  0.191  1.0
  O  O11  1  0.892  0.189  0.576  1.0
  O  O12  1  0.108  0.811  0.424  1.0
  O  O13  1  0.814  0.326  0.960  1.0
  O  O14  1  0.186  0.674  0.040  1.0
  O  O15  1  0.526  0.024  0.285  1.0
  O  O16  1  0.474  0.976  0.715  1.0
  O  O17  1  0.417  0.335  0.744  1.0
  O  O18  1  0.584  0.665  0.256  1.0
  O  O19  1  0.034  0.187  0.268  1.0
  O  O20  1  0.966  0.813  0.732  1.0
  O  O21  1  0.700  0.420  0.433  1.0
  O  O22  1  0.300  0.579  0.567  1.0
  O  O23  1  0.322  0.220  0.022  1.0
  O  O24  1  0.678  0.780  0.978  1.0
[/CIF]
.