The material described by LiSr2MgSi3 crystallizes in the orthorhombic Cmc2_1 space group. Li(1) is bonded in a 5-coordinate geometry to two equivalent Sr(2), one Mg(1), one Si(3), and three equivalent Si(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one Si(1), four equivalent Si(2), and four equivalent Si(3) atoms. In the second Sr site, Sr(2) is bonded in a 11-coordinate geometry to two equivalent Li(1), three equivalent Mg(1), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. Mg(1) is bonded in a 5-coordinate geometry to one Li(1), three equivalent Sr(2), one Si(2), and three equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to three equivalent Li(1), one Sr(1), two equivalent Sr(2), and three equivalent Mg(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Sr(2), four equivalent Sr(1), one Mg(1), and two equivalent Si(3) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to one Li(1), two equivalent Sr(2), four equivalent Sr(1), and two equivalent Si(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2LiMgSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.038
_cell_length_b   10.038
_cell_length_c   7.158
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   153.475
_symmetry_Int_Tables_number   1
_cell_volume   322.122
_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
  Sr  Sr0  1  0.444  0.556  0.752  1.0
  Sr  Sr1  1  0.556  0.444  0.252  1.0
  Sr  Sr2  1  0.654  0.346  0.735  1.0
  Sr  Sr3  1  0.346  0.654  0.235  1.0
  Li  Li4  1  0.806  0.194  0.951  1.0
  Li  Li5  1  0.194  0.806  0.451  1.0
  Mg  Mg6  1  0.191  0.809  0.057  1.0
  Mg  Mg7  1  0.809  0.191  0.557  1.0
  Si  Si8  1  0.279  0.721  0.754  1.0
  Si  Si9  1  0.721  0.279  0.254  1.0
  Si  Si10  1  0.947  0.053  0.417  1.0
  Si  Si11  1  0.051  0.949  0.585  1.0
  Si  Si12  1  0.949  0.051  0.085  1.0
  Si  Si13  1  0.053  0.947  0.917  1.0
[/CIF]
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The material described by LiSr2MgSi3 crystallizes in the orthorhombic Cmc2_1 space group. Li(1) is bonded in a 5-coordinate geometry to two equivalent Sr(2), one Mg(1), one Si(3), and three equivalent Si(1) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one Si(1), four equivalent Si(2), and four equivalent Si(3) atoms. In the second Sr site, Sr(2) is bonded in a 11-coordinate geometry to two equivalent Li(1), three equivalent Mg(1), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. Mg(1) is bonded in a 5-coordinate geometry to one Li(1), three equivalent Sr(2), one Si(2), and three equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to three equivalent Li(1), one Sr(1), two equivalent Sr(2), and three equivalent Mg(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Sr(2), four equivalent Sr(1), one Mg(1), and two equivalent Si(3) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to one Li(1), two equivalent Sr(2), four equivalent Sr(1), and two equivalent Si(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2LiMgSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.038
_cell_length_b   10.038
_cell_length_c   7.158
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   153.475
_symmetry_Int_Tables_number   1
_cell_volume   322.122
_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
  Sr  Sr0  1  0.444  0.556  0.752  1.0
  Sr  Sr1  1  0.556  0.444  0.252  1.0
  Sr  Sr2  1  0.654  0.346  0.735  1.0
  Sr  Sr3  1  0.346  0.654  0.235  1.0
  Li  Li4  1  0.806  0.194  0.951  1.0
  Li  Li5  1  0.194  0.806  0.451  1.0
  Mg  Mg6  1  0.191  0.809  0.057  1.0
  Mg  Mg7  1  0.809  0.191  0.557  1.0
  Si  Si8  1  0.279  0.721  0.754  1.0
  Si  Si9  1  0.721  0.279  0.254  1.0
  Si  Si10  1  0.947  0.053  0.417  1.0
  Si  Si11  1  0.051  0.949  0.585  1.0
  Si  Si12  1  0.949  0.051  0.085  1.0
  Si  Si13  1  0.053  0.947  0.917  1.0
[/CIF]
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