The structure described by LiSr2V2(Si2O7)2 crystallizes in the monoclinic Pm space group. Li(1) is bonded in a 3-coordinate geometry to one O(9), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 11-coordinate geometry to one O(9), two equivalent O(1), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms. In the second Sr site, Sr(2) is bonded in a 11-coordinate geometry to one O(8), two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded in a 5-coordinate geometry to one O(9), two equivalent O(4), and two equivalent O(7) atoms. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(8), two equivalent O(5), and two equivalent O(6) 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 corner-sharing SiO4 tetrahedra. 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 corner-sharing SiO4 tetrahedra. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to two equivalent Sr(1) and two equivalent Si(2) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Sr(2) and two equivalent Si(1) atoms. In the third O site, O(3) is bonded in a T-shaped geometry to one Li(1), one Si(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Li(1), one Sr(1), one Sr(2), one V(1), and one Si(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(2), one V(2), and one Si(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one V(2), and one Si(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one V(1), and one Si(1) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sr(2) and one V(2) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Li(1), one Sr(1), and one V(1) atom. is represented by the CIF card [CIF]
data_Sr2LiV2(Si2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.495
_cell_length_b   7.217
_cell_length_c   7.903
_cell_angle_alpha   90.000
_cell_angle_beta   111.738
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   291.137
_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
  Sr  Sr0  1  0.189  0.750  0.380  1.0
  Sr  Sr1  1  0.795  0.250  0.607  1.0
  Li  Li2  1  0.667  0.750  0.984  1.0
  V  V3  1  0.905  0.750  0.774  1.0
  V  V4  1  0.100  0.250  0.217  1.0
  Si  Si5  1  0.386  0.474  0.777  1.0
  Si  Si6  1  0.600  0.521  0.219  1.0
  Si  Si7  1  0.600  0.979  0.219  1.0
  Si  Si8  1  0.386  0.026  0.777  1.0
  O  O9  1  0.640  0.750  0.271  1.0
  O  O10  1  0.368  0.250  0.733  1.0
  O  O11  1  0.492  0.515  0.997  1.0
  O  O12  1  0.492  0.985  0.997  1.0
  O  O13  1  0.597  0.559  0.701  1.0
  O  O14  1  0.895  0.436  0.301  1.0
  O  O15  1  0.399  0.062  0.306  1.0
  O  O16  1  0.092  0.948  0.681  1.0
  O  O17  1  0.990  0.250  0.993  1.0
  O  O18  1  0.012  0.750  0.023  1.0
  O  O19  1  0.895  0.064  0.301  1.0
  O  O20  1  0.597  0.941  0.701  1.0
  O  O21  1  0.092  0.552  0.681  1.0
  O  O22  1  0.399  0.438  0.306  1.0
[/CIF]
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The structure described by LiSr2V2(Si2O7)2 crystallizes in the monoclinic Pm space group. Li(1) is bonded in a 3-coordinate geometry to one O(9), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 11-coordinate geometry to one O(9), two equivalent O(1), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms. In the second Sr site, Sr(2) is bonded in a 11-coordinate geometry to one O(8), two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded in a 5-coordinate geometry to one O(9), two equivalent O(4), and two equivalent O(7) atoms. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(8), two equivalent O(5), and two equivalent O(6) 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 corner-sharing SiO4 tetrahedra. 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 corner-sharing SiO4 tetrahedra. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to two equivalent Sr(1) and two equivalent Si(2) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Sr(2) and two equivalent Si(1) atoms. In the third O site, O(3) is bonded in a T-shaped geometry to one Li(1), one Si(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Li(1), one Sr(1), one Sr(2), one V(1), and one Si(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(2), one V(2), and one Si(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one V(2), and one Si(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one V(1), and one Si(1) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sr(2) and one V(2) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Li(1), one Sr(1), and one V(1) atom. is represented by the CIF card [CIF]
data_Sr2LiV2(Si2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.495
_cell_length_b   7.217
_cell_length_c   7.903
_cell_angle_alpha   90.000
_cell_angle_beta   111.738
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   291.137
_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
  Sr  Sr0  1  0.189  0.750  0.380  1.0
  Sr  Sr1  1  0.795  0.250  0.607  1.0
  Li  Li2  1  0.667  0.750  0.984  1.0
  V  V3  1  0.905  0.750  0.774  1.0
  V  V4  1  0.100  0.250  0.217  1.0
  Si  Si5  1  0.386  0.474  0.777  1.0
  Si  Si6  1  0.600  0.521  0.219  1.0
  Si  Si7  1  0.600  0.979  0.219  1.0
  Si  Si8  1  0.386  0.026  0.777  1.0
  O  O9  1  0.640  0.750  0.271  1.0
  O  O10  1  0.368  0.250  0.733  1.0
  O  O11  1  0.492  0.515  0.997  1.0
  O  O12  1  0.492  0.985  0.997  1.0
  O  O13  1  0.597  0.559  0.701  1.0
  O  O14  1  0.895  0.436  0.301  1.0
  O  O15  1  0.399  0.062  0.306  1.0
  O  O16  1  0.092  0.948  0.681  1.0
  O  O17  1  0.990  0.250  0.993  1.0
  O  O18  1  0.012  0.750  0.023  1.0
  O  O19  1  0.895  0.064  0.301  1.0
  O  O20  1  0.597  0.941  0.701  1.0
  O  O21  1  0.092  0.552  0.681  1.0
  O  O22  1  0.399  0.438  0.306  1.0
[/CIF]
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