The material structure described by SrLa4Si3O13 crystallizes in the hexagonal P6_3 space group. Sr(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(3), and three equivalent O(4) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(2), and three equivalent O(4) atoms. In the second La site, La(2) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(5), two equivalent O(2), and two equivalent O(3) atoms. Si(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one La(2), and one Si(1) atom. In the second O site, O(5) is bonded in a trigonal planar geometry to three equivalent La(2) atoms. In the third O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one La(2), and one Si(1) atom. In the fourth O site, O(2) is bonded in a 1-coordinate geometry to one La(1), two equivalent La(2), and one Si(1) atom. In the fifth O site, O(3) is bonded in a 1-coordinate geometry to one Sr(1), two equivalent La(2), and one Si(1) atom. is represented by the CIF file [CIF]
data_SrLa4Si3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.768
_cell_length_b   9.768
_cell_length_c   7.273
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   601.065
_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  0.333  0.667  0.500  1.0
  Sr  Sr1  1  0.667  0.333  1.000  1.0
  La  La2  1  0.667  0.333  0.500  1.0
  La  La3  1  0.333  0.667  1.000  1.0
  La  La4  1  0.232  0.989  0.250  1.0
  La  La5  1  0.756  0.768  0.250  1.0
  La  La6  1  0.011  0.244  0.250  1.0
  La  La7  1  0.768  0.011  0.750  1.0
  La  La8  1  0.244  0.232  0.750  1.0
  La  La9  1  0.989  0.756  0.750  1.0
  Si  Si10  1  0.971  0.600  0.249  1.0
  Si  Si11  1  0.630  0.029  0.249  1.0
  Si  Si12  1  0.400  0.370  0.249  1.0
  Si  Si13  1  0.029  0.400  0.749  1.0
  Si  Si14  1  0.370  0.971  0.749  1.0
  Si  Si15  1  0.600  0.630  0.749  1.0
  O  O16  1  0.163  0.679  0.245  1.0
  O  O17  1  0.516  0.837  0.245  1.0
  O  O18  1  0.321  0.484  0.245  1.0
  O  O19  1  0.837  0.321  0.745  1.0
  O  O20  1  0.484  0.163  0.745  1.0
  O  O21  1  0.679  0.516  0.745  1.0
  O  O22  1  0.910  0.658  0.431  1.0
  O  O23  1  0.747  0.090  0.431  1.0
  O  O24  1  0.342  0.253  0.431  1.0
  O  O25  1  0.090  0.342  0.931  1.0
  O  O26  1  0.253  0.910  0.931  1.0
  O  O27  1  0.658  0.747  0.931  1.0
  O  O28  1  0.088  0.338  0.570  1.0
  O  O29  1  0.250  0.912  0.570  1.0
  O  O30  1  0.662  0.750  0.570  1.0
  O  O31  1  0.912  0.662  0.070  1.0
  O  O32  1  0.750  0.088  0.070  1.0
  O  O33  1  0.338  0.250  0.070  1.0
  O  O34  1  0.877  0.406  0.255  1.0
  O  O35  1  0.529  0.123  0.255  1.0
  O  O36  1  0.594  0.471  0.255  1.0
  O  O37  1  0.123  0.594  0.755  1.0
  O  O38  1  0.471  0.877  0.755  1.0
  O  O39  1  0.406  0.529  0.755  1.0
  O  O40  1  0.000  0.000  0.251  1.0
  O  O41  1  0.000  0.000  0.751  1.0
[/CIF]
.
The material structure described by SrLa4Si3O13 crystallizes in the hexagonal P6_3 space group. Sr(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(3), and three equivalent O(4) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(2), and three equivalent O(4) atoms. In the second La site, La(2) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(5), two equivalent O(2), and two equivalent O(3) atoms. Si(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one La(2), and one Si(1) atom. In the second O site, O(5) is bonded in a trigonal planar geometry to three equivalent La(2) atoms. In the third O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one La(2), and one Si(1) atom. In the fourth O site, O(2) is bonded in a 1-coordinate geometry to one La(1), two equivalent La(2), and one Si(1) atom. In the fifth O site, O(3) is bonded in a 1-coordinate geometry to one Sr(1), two equivalent La(2), and one Si(1) atom. is represented by the CIF file [CIF]
data_SrLa4Si3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.768
_cell_length_b   9.768
_cell_length_c   7.273
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   601.065
_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  0.333  0.667  0.500  1.0
  Sr  Sr1  1  0.667  0.333  1.000  1.0
  La  La2  1  0.667  0.333  0.500  1.0
  La  La3  1  0.333  0.667  1.000  1.0
  La  La4  1  0.232  0.989  0.250  1.0
  La  La5  1  0.756  0.768  0.250  1.0
  La  La6  1  0.011  0.244  0.250  1.0
  La  La7  1  0.768  0.011  0.750  1.0
  La  La8  1  0.244  0.232  0.750  1.0
  La  La9  1  0.989  0.756  0.750  1.0
  Si  Si10  1  0.971  0.600  0.249  1.0
  Si  Si11  1  0.630  0.029  0.249  1.0
  Si  Si12  1  0.400  0.370  0.249  1.0
  Si  Si13  1  0.029  0.400  0.749  1.0
  Si  Si14  1  0.370  0.971  0.749  1.0
  Si  Si15  1  0.600  0.630  0.749  1.0
  O  O16  1  0.163  0.679  0.245  1.0
  O  O17  1  0.516  0.837  0.245  1.0
  O  O18  1  0.321  0.484  0.245  1.0
  O  O19  1  0.837  0.321  0.745  1.0
  O  O20  1  0.484  0.163  0.745  1.0
  O  O21  1  0.679  0.516  0.745  1.0
  O  O22  1  0.910  0.658  0.431  1.0
  O  O23  1  0.747  0.090  0.431  1.0
  O  O24  1  0.342  0.253  0.431  1.0
  O  O25  1  0.090  0.342  0.931  1.0
  O  O26  1  0.253  0.910  0.931  1.0
  O  O27  1  0.658  0.747  0.931  1.0
  O  O28  1  0.088  0.338  0.570  1.0
  O  O29  1  0.250  0.912  0.570  1.0
  O  O30  1  0.662  0.750  0.570  1.0
  O  O31  1  0.912  0.662  0.070  1.0
  O  O32  1  0.750  0.088  0.070  1.0
  O  O33  1  0.338  0.250  0.070  1.0
  O  O34  1  0.877  0.406  0.255  1.0
  O  O35  1  0.529  0.123  0.255  1.0
  O  O36  1  0.594  0.471  0.255  1.0
  O  O37  1  0.123  0.594  0.755  1.0
  O  O38  1  0.471  0.877  0.755  1.0
  O  O39  1  0.406  0.529  0.755  1.0
  O  O40  1  0.000  0.000  0.251  1.0
  O  O41  1  0.000  0.000  0.751  1.0
[/CIF]
.