The structure described by LiSr2Si3 crystallizes in the orthorhombic Fddd space group. Li(1) is bonded in a trigonal planar geometry to two equivalent Sr(2), four equivalent Sr(1), one Si(2), and two equivalent Si(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent Li(1), two equivalent Si(2), and six equivalent Si(1) atoms to form distorted SrLi4Si8 cuboctahedra that share edges with six equivalent Sr(2)Li2Si10 cuboctahedra, edges with six equivalent Sr(1)Li4Si8 cuboctahedra, faces with three equivalent Sr(1)Li4Si8 cuboctahedra, and faces with five equivalent Sr(2)Li2Si10 cuboctahedra. In the second Sr site, Sr(2) is bonded to two equivalent Li(1), four equivalent Si(2), and six equivalent Si(1) atoms to form distorted SrLi2Si10 cuboctahedra that share edges with six equivalent Sr(2)Li2Si10 cuboctahedra, edges with six equivalent Sr(1)Li4Si8 cuboctahedra, faces with three equivalent Sr(2)Li2Si10 cuboctahedra, and faces with five equivalent Sr(1)Li4Si8 cuboctahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted single-bond geometry to one Li(1), three equivalent Sr(1), and three equivalent Sr(2) atoms. In the second Si site, Si(2) is bonded in a distorted single-bond geometry to one Li(1), two equivalent Sr(1), and four equivalent Sr(2) atoms. is represented by the CIF file [CIF]
data_Sr2LiSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.753
_cell_length_b   10.075
_cell_length_c   8.541
_cell_angle_alpha   77.839
_cell_angle_beta   56.919
_cell_angle_gamma   45.263
_symmetry_Int_Tables_number   1
_cell_volume   575.788
_cell_formula_units_Z   4
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
  Sr  Sr0  1  0.124  0.124  0.876  1.0
  Sr  Sr1  1  0.876  0.876  0.124  1.0
  Sr  Sr2  1  0.126  0.126  0.374  1.0
  Sr  Sr3  1  0.374  0.374  0.126  1.0
  Sr  Sr4  1  0.624  0.624  0.376  1.0
  Sr  Sr5  1  0.376  0.376  0.624  1.0
  Sr  Sr6  1  0.626  0.626  0.874  1.0
  Sr  Sr7  1  0.874  0.874  0.626  1.0
  Li  Li8  1  0.083  0.417  0.083  1.0
  Li  Li9  1  0.833  0.167  0.833  1.0
  Li  Li10  1  0.167  0.833  0.167  1.0
  Li  Li11  1  0.417  0.083  0.417  1.0
  Si  Si12  1  0.913  0.593  0.427  1.0
  Si  Si13  1  0.068  0.427  0.593  1.0
  Si  Si14  1  0.427  0.068  0.913  1.0
  Si  Si15  1  0.593  0.913  0.068  1.0
  Si  Si16  1  0.337  0.657  0.823  1.0
  Si  Si17  1  0.657  0.337  0.182  1.0
  Si  Si18  1  0.823  0.182  0.337  1.0
  Si  Si19  1  0.182  0.823  0.657  1.0
  Si  Si20  1  0.911  0.589  0.911  1.0
  Si  Si21  1  0.589  0.911  0.589  1.0
  Si  Si22  1  0.339  0.661  0.339  1.0
  Si  Si23  1  0.661  0.339  0.661  1.0
[/CIF]
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The structure described by LiSr2Si3 crystallizes in the orthorhombic Fddd space group. Li(1) is bonded in a trigonal planar geometry to two equivalent Sr(2), four equivalent Sr(1), one Si(2), and two equivalent Si(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent Li(1), two equivalent Si(2), and six equivalent Si(1) atoms to form distorted SrLi4Si8 cuboctahedra that share edges with six equivalent Sr(2)Li2Si10 cuboctahedra, edges with six equivalent Sr(1)Li4Si8 cuboctahedra, faces with three equivalent Sr(1)Li4Si8 cuboctahedra, and faces with five equivalent Sr(2)Li2Si10 cuboctahedra. In the second Sr site, Sr(2) is bonded to two equivalent Li(1), four equivalent Si(2), and six equivalent Si(1) atoms to form distorted SrLi2Si10 cuboctahedra that share edges with six equivalent Sr(2)Li2Si10 cuboctahedra, edges with six equivalent Sr(1)Li4Si8 cuboctahedra, faces with three equivalent Sr(2)Li2Si10 cuboctahedra, and faces with five equivalent Sr(1)Li4Si8 cuboctahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted single-bond geometry to one Li(1), three equivalent Sr(1), and three equivalent Sr(2) atoms. In the second Si site, Si(2) is bonded in a distorted single-bond geometry to one Li(1), two equivalent Sr(1), and four equivalent Sr(2) atoms. is represented by the CIF file [CIF]
data_Sr2LiSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.753
_cell_length_b   10.075
_cell_length_c   8.541
_cell_angle_alpha   77.839
_cell_angle_beta   56.919
_cell_angle_gamma   45.263
_symmetry_Int_Tables_number   1
_cell_volume   575.788
_cell_formula_units_Z   4
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
  Sr  Sr0  1  0.124  0.124  0.876  1.0
  Sr  Sr1  1  0.876  0.876  0.124  1.0
  Sr  Sr2  1  0.126  0.126  0.374  1.0
  Sr  Sr3  1  0.374  0.374  0.126  1.0
  Sr  Sr4  1  0.624  0.624  0.376  1.0
  Sr  Sr5  1  0.376  0.376  0.624  1.0
  Sr  Sr6  1  0.626  0.626  0.874  1.0
  Sr  Sr7  1  0.874  0.874  0.626  1.0
  Li  Li8  1  0.083  0.417  0.083  1.0
  Li  Li9  1  0.833  0.167  0.833  1.0
  Li  Li10  1  0.167  0.833  0.167  1.0
  Li  Li11  1  0.417  0.083  0.417  1.0
  Si  Si12  1  0.913  0.593  0.427  1.0
  Si  Si13  1  0.068  0.427  0.593  1.0
  Si  Si14  1  0.427  0.068  0.913  1.0
  Si  Si15  1  0.593  0.913  0.068  1.0
  Si  Si16  1  0.337  0.657  0.823  1.0
  Si  Si17  1  0.657  0.337  0.182  1.0
  Si  Si18  1  0.823  0.182  0.337  1.0
  Si  Si19  1  0.182  0.823  0.657  1.0
  Si  Si20  1  0.911  0.589  0.911  1.0
  Si  Si21  1  0.589  0.911  0.589  1.0
  Si  Si22  1  0.339  0.661  0.339  1.0
  Si  Si23  1  0.661  0.339  0.661  1.0
[/CIF]
.