The material structure described by La2(SiO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 2-coordinate geometry to one O(2), one O(3), one O(4), and one O(7) atom. In the second La site, La(2) is bonded in a 4-coordinate geometry to one O(2), one O(6), one O(8), and two equivalent O(4) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Si site, Si(2) is bonded in a 2-coordinate geometry to one O(8), one O(9), and two equivalent O(4) atoms. In the third Si site, Si(3) is bonded in a 2-coordinate geometry to one O(6) and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Si(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Si(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one La(1) and one Si(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one La(1), two equivalent La(2), two equivalent Si(2), and one O(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Si(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one La(2) and one Si(3) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one La(1) and one Si(3) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one La(2) and one Si(2) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one Si(2) atom. is represented by the CIF card [CIF]
data_La2(SiO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.600
_cell_length_b   8.683
_cell_length_c   5.564
_cell_angle_alpha   108.206
_cell_angle_beta   91.725
_cell_angle_gamma   108.208
_symmetry_Int_Tables_number   1
_cell_volume   327.977
_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
  La  La0  1  0.584  0.807  0.183  1.0
  La  La1  1  0.218  0.132  0.204  1.0
  La  La2  1  0.782  0.868  0.796  1.0
  La  La3  1  0.416  0.193  0.817  1.0
  Si  Si4  1  0.860  0.430  0.077  1.0
  Si  Si5  1  0.998  0.763  0.487  1.0
  Si  Si6  1  0.668  0.340  0.481  1.0
  Si  Si7  1  0.332  0.660  0.519  1.0
  Si  Si8  1  0.002  0.237  0.513  1.0
  Si  Si9  1  0.140  0.570  0.923  1.0
  O  O10  1  0.999  0.701  0.006  1.0
  O  O11  1  0.710  0.132  0.016  1.0
  O  O12  1  0.706  0.574  0.031  1.0
  O  O13  1  0.956  0.987  0.334  1.0
  O  O14  1  0.952  0.471  0.323  1.0
  O  O15  1  0.515  0.204  0.287  1.0
  O  O16  1  0.385  0.623  0.338  1.0
  O  O17  1  0.778  0.639  0.470  1.0
  O  O18  1  0.786  0.149  0.510  1.0
  O  O19  1  0.214  0.851  0.490  1.0
  O  O20  1  0.222  0.361  0.530  1.0
  O  O21  1  0.615  0.377  0.662  1.0
  O  O22  1  0.485  0.796  0.713  1.0
  O  O23  1  0.048  0.529  0.677  1.0
  O  O24  1  0.044  0.013  0.666  1.0
  O  O25  1  0.294  0.426  0.969  1.0
  O  O26  1  0.290  0.868  0.984  1.0
  O  O27  1  0.001  0.299  0.994  1.0
[/CIF]
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The material structure described by La2(SiO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 2-coordinate geometry to one O(2), one O(3), one O(4), and one O(7) atom. In the second La site, La(2) is bonded in a 4-coordinate geometry to one O(2), one O(6), one O(8), and two equivalent O(4) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Si site, Si(2) is bonded in a 2-coordinate geometry to one O(8), one O(9), and two equivalent O(4) atoms. In the third Si site, Si(3) is bonded in a 2-coordinate geometry to one O(6) and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Si(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Si(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one La(1) and one Si(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one La(1), two equivalent La(2), two equivalent Si(2), and one O(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Si(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one La(2) and one Si(3) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one La(1) and one Si(3) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one La(2) and one Si(2) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one Si(2) atom. is represented by the CIF card [CIF]
data_La2(SiO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.600
_cell_length_b   8.683
_cell_length_c   5.564
_cell_angle_alpha   108.206
_cell_angle_beta   91.725
_cell_angle_gamma   108.208
_symmetry_Int_Tables_number   1
_cell_volume   327.977
_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
  La  La0  1  0.584  0.807  0.183  1.0
  La  La1  1  0.218  0.132  0.204  1.0
  La  La2  1  0.782  0.868  0.796  1.0
  La  La3  1  0.416  0.193  0.817  1.0
  Si  Si4  1  0.860  0.430  0.077  1.0
  Si  Si5  1  0.998  0.763  0.487  1.0
  Si  Si6  1  0.668  0.340  0.481  1.0
  Si  Si7  1  0.332  0.660  0.519  1.0
  Si  Si8  1  0.002  0.237  0.513  1.0
  Si  Si9  1  0.140  0.570  0.923  1.0
  O  O10  1  0.999  0.701  0.006  1.0
  O  O11  1  0.710  0.132  0.016  1.0
  O  O12  1  0.706  0.574  0.031  1.0
  O  O13  1  0.956  0.987  0.334  1.0
  O  O14  1  0.952  0.471  0.323  1.0
  O  O15  1  0.515  0.204  0.287  1.0
  O  O16  1  0.385  0.623  0.338  1.0
  O  O17  1  0.778  0.639  0.470  1.0
  O  O18  1  0.786  0.149  0.510  1.0
  O  O19  1  0.214  0.851  0.490  1.0
  O  O20  1  0.222  0.361  0.530  1.0
  O  O21  1  0.615  0.377  0.662  1.0
  O  O22  1  0.485  0.796  0.713  1.0
  O  O23  1  0.048  0.529  0.677  1.0
  O  O24  1  0.044  0.013  0.666  1.0
  O  O25  1  0.294  0.426  0.969  1.0
  O  O26  1  0.290  0.868  0.984  1.0
  O  O27  1  0.001  0.299  0.994  1.0
[/CIF]
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