The compound described by Li5Ca7Sn11 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one Sn(5) and three equivalent Sn(4) atoms to form LiSn4 tetrahedra that share corners with two equivalent Li(1)Sn4 tetrahedra,  a cornercorner with one Ca(1)Sn7 trigonal bipyramid, edges with two equivalent Li(1)Sn4 tetrahedra, and edges with two equivalent Ca(1)Sn7 trigonal bipyramids. In the second Li site, Li(2) is bonded in a 5-coordinate geometry to one Sn(6) and four equivalent Sn(1) atoms. In the third Li site, Li(3) is bonded in a 3-coordinate geometry to one Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are four inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one Sn(4), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(5) atoms to form distorted CaSn7 trigonal bipyramids that share  a cornercorner with one Li(1)Sn4 tetrahedra, edges with two equivalent Li(1)Sn4 tetrahedra, and faces with two equivalent Ca(1)Sn7 trigonal bipyramids. In the second Ca site, Ca(2) is bonded in a 7-coordinate geometry to one Sn(1), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(6) atoms. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(5) atoms. In the fourth Ca site, Ca(4) is bonded in a 10-coordinate geometry to two equivalent Sn(6), four equivalent Sn(1), and four equivalent Sn(2) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Li(3), two equivalent Li(2), one Ca(2), two equivalent Ca(4), one Sn(1), and one Sn(2) atom. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Ca(1), two equivalent Ca(2), two equivalent Ca(4), one Sn(1), and one Sn(6) atom. In the third Sn site, Sn(3) is bonded in a 10-coordinate geometry to two equivalent Li(3), two equivalent Ca(1), two equivalent Ca(2), two equivalent Ca(3), one Sn(4), and one Sn(5) atom. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to two equivalent Li(3), three equivalent Li(1), one Ca(1), two equivalent Ca(3), and one Sn(3) atom. In the fifth Sn site, Sn(5) is bonded in a 9-coordinate geometry to one Li(1), two equivalent Ca(1), four equivalent Ca(3), one Sn(3), and one Sn(5) atom. In the sixth Sn site, Sn(6) is bonded in a 9-coordinate geometry to one Li(2), two equivalent Ca(4), four equivalent Ca(2), and two equivalent Sn(2) atoms. is represented by the CIF card [CIF]
data_Li5Ca7Sn11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.871
_cell_length_b   8.871
_cell_length_c   32.032
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.756
_symmetry_Int_Tables_number   1
_cell_volume   1269.670
_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  0.292  0.708  0.528  1.0
  Li  Li1  1  0.708  0.292  0.028  1.0
  Li  Li2  1  0.342  0.658  0.250  1.0
  Li  Li3  1  0.658  0.342  0.750  1.0
  Li  Li4  1  0.708  0.292  0.472  1.0
  Li  Li5  1  0.212  0.788  0.616  1.0
  Li  Li6  1  0.292  0.708  0.972  1.0
  Li  Li7  1  0.788  0.212  0.384  1.0
  Li  Li8  1  0.788  0.212  0.116  1.0
  Li  Li9  1  0.212  0.788  0.884  1.0
  Ca  Ca10  1  0.894  0.106  0.899  1.0
  Ca  Ca11  1  0.106  0.894  0.101  1.0
  Ca  Ca12  1  0.954  0.046  0.317  1.0
  Ca  Ca13  1  0.046  0.954  0.683  1.0
  Ca  Ca14  1  0.097  0.903  0.530  1.0
  Ca  Ca15  1  0.903  0.097  0.470  1.0
  Ca  Ca16  1  0.106  0.894  0.399  1.0
  Ca  Ca17  1  0.149  0.851  0.250  1.0
  Ca  Ca18  1  0.097  0.903  0.970  1.0
  Ca  Ca19  1  0.903  0.097  0.030  1.0
  Ca  Ca20  1  0.046  0.954  0.817  1.0
  Ca  Ca21  1  0.851  0.149  0.750  1.0
  Ca  Ca22  1  0.954  0.046  0.183  1.0
  Ca  Ca23  1  0.894  0.106  0.601  1.0
  Sn  Sn24  1  0.769  0.231  0.294  1.0
  Sn  Sn25  1  0.609  0.391  0.325  1.0
  Sn  Sn26  1  0.609  0.391  0.175  1.0
  Sn  Sn27  1  0.429  0.571  0.108  1.0
  Sn  Sn28  1  0.721  0.279  0.562  1.0
  Sn  Sn29  1  0.545  0.455  0.462  1.0
  Sn  Sn30  1  0.391  0.609  0.675  1.0
  Sn  Sn31  1  0.455  0.545  0.962  1.0
  Sn  Sn32  1  0.231  0.769  0.794  1.0
  Sn  Sn33  1  0.571  0.429  0.608  1.0
  Sn  Sn34  1  0.721  0.279  0.938  1.0
  Sn  Sn35  1  0.429  0.571  0.392  1.0
  Sn  Sn36  1  0.490  0.510  0.750  1.0
  Sn  Sn37  1  0.571  0.429  0.892  1.0
  Sn  Sn38  1  0.231  0.769  0.706  1.0
  Sn  Sn39  1  0.545  0.455  0.038  1.0
  Sn  Sn40  1  0.769  0.231  0.206  1.0
  Sn  Sn41  1  0.455  0.545  0.538  1.0
  Sn  Sn42  1  0.279  0.721  0.438  1.0
  Sn  Sn43  1  0.391  0.609  0.825  1.0
  Sn  Sn44  1  0.279  0.721  0.062  1.0
  Sn  Sn45  1  0.510  0.490  0.250  1.0
[/CIF]
.
The compound described by Li5Ca7Sn11 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one Sn(5) and three equivalent Sn(4) atoms to form LiSn4 tetrahedra that share corners with two equivalent Li(1)Sn4 tetrahedra,  a cornercorner with one Ca(1)Sn7 trigonal bipyramid, edges with two equivalent Li(1)Sn4 tetrahedra, and edges with two equivalent Ca(1)Sn7 trigonal bipyramids. In the second Li site, Li(2) is bonded in a 5-coordinate geometry to one Sn(6) and four equivalent Sn(1) atoms. In the third Li site, Li(3) is bonded in a 3-coordinate geometry to one Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are four inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one Sn(4), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(5) atoms to form distorted CaSn7 trigonal bipyramids that share  a cornercorner with one Li(1)Sn4 tetrahedra, edges with two equivalent Li(1)Sn4 tetrahedra, and faces with two equivalent Ca(1)Sn7 trigonal bipyramids. In the second Ca site, Ca(2) is bonded in a 7-coordinate geometry to one Sn(1), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(6) atoms. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(5) atoms. In the fourth Ca site, Ca(4) is bonded in a 10-coordinate geometry to two equivalent Sn(6), four equivalent Sn(1), and four equivalent Sn(2) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Li(3), two equivalent Li(2), one Ca(2), two equivalent Ca(4), one Sn(1), and one Sn(2) atom. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Ca(1), two equivalent Ca(2), two equivalent Ca(4), one Sn(1), and one Sn(6) atom. In the third Sn site, Sn(3) is bonded in a 10-coordinate geometry to two equivalent Li(3), two equivalent Ca(1), two equivalent Ca(2), two equivalent Ca(3), one Sn(4), and one Sn(5) atom. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to two equivalent Li(3), three equivalent Li(1), one Ca(1), two equivalent Ca(3), and one Sn(3) atom. In the fifth Sn site, Sn(5) is bonded in a 9-coordinate geometry to one Li(1), two equivalent Ca(1), four equivalent Ca(3), one Sn(3), and one Sn(5) atom. In the sixth Sn site, Sn(6) is bonded in a 9-coordinate geometry to one Li(2), two equivalent Ca(4), four equivalent Ca(2), and two equivalent Sn(2) atoms. is represented by the CIF card [CIF]
data_Li5Ca7Sn11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.871
_cell_length_b   8.871
_cell_length_c   32.032
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.756
_symmetry_Int_Tables_number   1
_cell_volume   1269.670
_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  0.292  0.708  0.528  1.0
  Li  Li1  1  0.708  0.292  0.028  1.0
  Li  Li2  1  0.342  0.658  0.250  1.0
  Li  Li3  1  0.658  0.342  0.750  1.0
  Li  Li4  1  0.708  0.292  0.472  1.0
  Li  Li5  1  0.212  0.788  0.616  1.0
  Li  Li6  1  0.292  0.708  0.972  1.0
  Li  Li7  1  0.788  0.212  0.384  1.0
  Li  Li8  1  0.788  0.212  0.116  1.0
  Li  Li9  1  0.212  0.788  0.884  1.0
  Ca  Ca10  1  0.894  0.106  0.899  1.0
  Ca  Ca11  1  0.106  0.894  0.101  1.0
  Ca  Ca12  1  0.954  0.046  0.317  1.0
  Ca  Ca13  1  0.046  0.954  0.683  1.0
  Ca  Ca14  1  0.097  0.903  0.530  1.0
  Ca  Ca15  1  0.903  0.097  0.470  1.0
  Ca  Ca16  1  0.106  0.894  0.399  1.0
  Ca  Ca17  1  0.149  0.851  0.250  1.0
  Ca  Ca18  1  0.097  0.903  0.970  1.0
  Ca  Ca19  1  0.903  0.097  0.030  1.0
  Ca  Ca20  1  0.046  0.954  0.817  1.0
  Ca  Ca21  1  0.851  0.149  0.750  1.0
  Ca  Ca22  1  0.954  0.046  0.183  1.0
  Ca  Ca23  1  0.894  0.106  0.601  1.0
  Sn  Sn24  1  0.769  0.231  0.294  1.0
  Sn  Sn25  1  0.609  0.391  0.325  1.0
  Sn  Sn26  1  0.609  0.391  0.175  1.0
  Sn  Sn27  1  0.429  0.571  0.108  1.0
  Sn  Sn28  1  0.721  0.279  0.562  1.0
  Sn  Sn29  1  0.545  0.455  0.462  1.0
  Sn  Sn30  1  0.391  0.609  0.675  1.0
  Sn  Sn31  1  0.455  0.545  0.962  1.0
  Sn  Sn32  1  0.231  0.769  0.794  1.0
  Sn  Sn33  1  0.571  0.429  0.608  1.0
  Sn  Sn34  1  0.721  0.279  0.938  1.0
  Sn  Sn35  1  0.429  0.571  0.392  1.0
  Sn  Sn36  1  0.490  0.510  0.750  1.0
  Sn  Sn37  1  0.571  0.429  0.892  1.0
  Sn  Sn38  1  0.231  0.769  0.706  1.0
  Sn  Sn39  1  0.545  0.455  0.038  1.0
  Sn  Sn40  1  0.769  0.231  0.206  1.0
  Sn  Sn41  1  0.455  0.545  0.538  1.0
  Sn  Sn42  1  0.279  0.721  0.438  1.0
  Sn  Sn43  1  0.391  0.609  0.825  1.0
  Sn  Sn44  1  0.279  0.721  0.062  1.0
  Sn  Sn45  1  0.510  0.490  0.250  1.0
[/CIF]
.