The material described by Sr2BeLaO5 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and three equivalent O(1) atoms. Be(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. La(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(4), and four equivalent O(1) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded to four equivalent Sr(1) and two equivalent La(1) atoms to form distorted corner-sharing OSr4La2 octahedra. The corner-sharing octahedral tilt angles range from 34-44°. In the second O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Sr(1), one Be(1), and two equivalent La(1) atoms. In the third O site, O(2) is bonded in a distorted single-bond geometry to four equivalent Sr(1), one Be(1), and one La(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to four equivalent Sr(1), one Be(1), and one La(1) atom. is represented by the CIF card [CIF]
data_Sr2LaBeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.692
_cell_length_b   7.506
_cell_length_c   9.764
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   490.424
_cell_formula_units_Z   4
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  0.586  0.525  0.827  1.0
  Sr  Sr1  1  0.414  0.475  0.173  1.0
  Sr  Sr2  1  0.086  0.475  0.673  1.0
  Sr  Sr3  1  0.414  0.025  0.173  1.0
  Sr  Sr4  1  0.914  0.525  0.327  1.0
  Sr  Sr5  1  0.586  0.975  0.827  1.0
  Sr  Sr6  1  0.914  0.975  0.327  1.0
  Sr  Sr7  1  0.086  0.025  0.673  1.0
  La  La8  1  0.096  0.750  0.971  1.0
  La  La9  1  0.904  0.250  0.029  1.0
  La  La10  1  0.596  0.250  0.529  1.0
  La  La11  1  0.404  0.750  0.471  1.0
  Be  Be12  1  0.811  0.750  0.602  1.0
  Be  Be13  1  0.189  0.250  0.398  1.0
  Be  Be14  1  0.311  0.250  0.898  1.0
  Be  Be15  1  0.689  0.750  0.102  1.0
  O  O16  1  0.690  0.565  0.564  1.0
  O  O17  1  0.310  0.435  0.436  1.0
  O  O18  1  0.190  0.435  0.936  1.0
  O  O19  1  0.310  0.065  0.436  1.0
  O  O20  1  0.810  0.565  0.064  1.0
  O  O21  1  0.690  0.935  0.564  1.0
  O  O22  1  0.810  0.935  0.064  1.0
  O  O23  1  0.190  0.065  0.936  1.0
  O  O24  1  0.871  0.750  0.768  1.0
  O  O25  1  0.129  0.250  0.232  1.0
  O  O26  1  0.371  0.250  0.732  1.0
  O  O27  1  0.629  0.750  0.268  1.0
  O  O28  1  0.026  0.750  0.513  1.0
  O  O29  1  0.974  0.250  0.487  1.0
  O  O30  1  0.526  0.250  0.987  1.0
  O  O31  1  0.474  0.750  0.013  1.0
  O  O32  1  0.328  0.750  0.722  1.0
  O  O33  1  0.672  0.250  0.278  1.0
  O  O34  1  0.828  0.250  0.778  1.0
  O  O35  1  0.172  0.750  0.222  1.0
[/CIF]
.
The material described by Sr2BeLaO5 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and three equivalent O(1) atoms. Be(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. La(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(4), and four equivalent O(1) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded to four equivalent Sr(1) and two equivalent La(1) atoms to form distorted corner-sharing OSr4La2 octahedra. The corner-sharing octahedral tilt angles range from 34-44°. In the second O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Sr(1), one Be(1), and two equivalent La(1) atoms. In the third O site, O(2) is bonded in a distorted single-bond geometry to four equivalent Sr(1), one Be(1), and one La(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to four equivalent Sr(1), one Be(1), and one La(1) atom. is represented by the CIF card [CIF]
data_Sr2LaBeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.692
_cell_length_b   7.506
_cell_length_c   9.764
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   490.424
_cell_formula_units_Z   4
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  0.586  0.525  0.827  1.0
  Sr  Sr1  1  0.414  0.475  0.173  1.0
  Sr  Sr2  1  0.086  0.475  0.673  1.0
  Sr  Sr3  1  0.414  0.025  0.173  1.0
  Sr  Sr4  1  0.914  0.525  0.327  1.0
  Sr  Sr5  1  0.586  0.975  0.827  1.0
  Sr  Sr6  1  0.914  0.975  0.327  1.0
  Sr  Sr7  1  0.086  0.025  0.673  1.0
  La  La8  1  0.096  0.750  0.971  1.0
  La  La9  1  0.904  0.250  0.029  1.0
  La  La10  1  0.596  0.250  0.529  1.0
  La  La11  1  0.404  0.750  0.471  1.0
  Be  Be12  1  0.811  0.750  0.602  1.0
  Be  Be13  1  0.189  0.250  0.398  1.0
  Be  Be14  1  0.311  0.250  0.898  1.0
  Be  Be15  1  0.689  0.750  0.102  1.0
  O  O16  1  0.690  0.565  0.564  1.0
  O  O17  1  0.310  0.435  0.436  1.0
  O  O18  1  0.190  0.435  0.936  1.0
  O  O19  1  0.310  0.065  0.436  1.0
  O  O20  1  0.810  0.565  0.064  1.0
  O  O21  1  0.690  0.935  0.564  1.0
  O  O22  1  0.810  0.935  0.064  1.0
  O  O23  1  0.190  0.065  0.936  1.0
  O  O24  1  0.871  0.750  0.768  1.0
  O  O25  1  0.129  0.250  0.232  1.0
  O  O26  1  0.371  0.250  0.732  1.0
  O  O27  1  0.629  0.750  0.268  1.0
  O  O28  1  0.026  0.750  0.513  1.0
  O  O29  1  0.974  0.250  0.487  1.0
  O  O30  1  0.526  0.250  0.987  1.0
  O  O31  1  0.474  0.750  0.013  1.0
  O  O32  1  0.328  0.750  0.722  1.0
  O  O33  1  0.672  0.250  0.278  1.0
  O  O34  1  0.828  0.250  0.778  1.0
  O  O35  1  0.172  0.750  0.222  1.0
[/CIF]
.