The material described by Na3SrB5O10 crystallizes in the triclinic P-1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(5), and two equivalent O(4) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(3), one O(6), and two equivalent O(9) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(3), one O(6), and two equivalent O(8) atoms. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(7), one O(8), and two equivalent O(3) atoms. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(4), and one O(7) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(9) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(2), one O(6), and one O(7) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(5), one O(8), and one O(9) atom. In the fifth B site, B(5) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(6) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(3), one Sr(1), one B(2), and one B(5) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Sr(1), and one B(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(2), one Na(3), two equivalent Sr(1), and one B(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Na(1), one B(1), and one B(5) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Na(1), one Sr(1), one B(4), and one B(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Na(2), one Na(3), one B(3), and one B(5) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(1), and one B(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to two equivalent Na(3), one Sr(1), and one B(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to two equivalent Na(2), one B(2), and one B(4) atom. In the tenth O site, O(10) is bonded in a 1-coordinate geometry to one Na(1), one Na(2), one Na(3), one Sr(1), and one B(1) atom. is represented by the CIF card [CIF]
data_Na3Sr(BO2)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.346
_cell_length_b   7.695
_cell_length_c   9.829
_cell_angle_alpha   81.556
_cell_angle_beta   109.030
_cell_angle_gamma   117.973
_symmetry_Int_Tables_number   1
_cell_volume   463.851
_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
  Na  Na0  1  0.792  0.281  0.452  1.0
  Na  Na1  1  0.208  0.719  0.548  1.0
  Na  Na2  1  0.156  0.501  0.165  1.0
  Na  Na3  1  0.844  0.499  0.835  1.0
  Na  Na4  1  0.721  0.014  0.115  1.0
  Na  Na5  1  0.279  0.986  0.885  1.0
  Sr  Sr6  1  0.784  0.948  0.776  1.0
  Sr  Sr7  1  0.216  0.052  0.224  1.0
  B  B8  1  0.838  0.750  0.548  1.0
  B  B9  1  0.162  0.250  0.452  1.0
  B  B10  1  0.863  0.678  0.083  1.0
  B  B11  1  0.137  0.322  0.917  1.0
  B  B12  1  0.512  0.773  0.378  1.0
  B  B13  1  0.488  0.227  0.622  1.0
  B  B14  1  0.618  0.340  0.138  1.0
  B  B15  1  0.382  0.660  0.862  1.0
  B  B16  1  0.702  0.627  0.290  1.0
  B  B17  1  0.298  0.373  0.710  1.0
  O  O18  1  0.835  0.751  0.193  1.0
  O  O19  1  0.342  0.807  0.356  1.0
  O  O20  1  0.016  0.205  0.000  1.0
  O  O21  1  0.984  0.795  1.000  1.0
  O  O22  1  0.658  0.193  0.644  1.0
  O  O23  1  0.844  0.653  0.440  1.0
  O  O24  1  0.400  0.585  0.748  1.0
  O  O25  1  0.600  0.415  0.252  1.0
  O  O26  1  0.467  0.313  0.728  1.0
  O  O27  1  0.533  0.687  0.272  1.0
  O  O28  1  0.320  0.180  0.489  1.0
  O  O29  1  0.680  0.820  0.511  1.0
  O  O30  1  0.500  0.850  0.896  1.0
  O  O31  1  0.500  0.150  0.104  1.0
  O  O32  1  0.232  0.529  0.935  1.0
  O  O33  1  0.768  0.471  0.065  1.0
  O  O34  1  0.027  0.223  0.318  1.0
  O  O35  1  0.973  0.777  0.682  1.0
  O  O36  1  0.156  0.347  0.560  1.0
  O  O37  1  0.165  0.249  0.807  1.0
[/CIF]
.
The material described by Na3SrB5O10 crystallizes in the triclinic P-1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(5), and two equivalent O(4) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(3), one O(6), and two equivalent O(9) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(3), one O(6), and two equivalent O(8) atoms. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(7), one O(8), and two equivalent O(3) atoms. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(4), and one O(7) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(9) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(2), one O(6), and one O(7) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(5), one O(8), and one O(9) atom. In the fifth B site, B(5) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(6) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(3), one Sr(1), one B(2), and one B(5) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Sr(1), and one B(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(2), one Na(3), two equivalent Sr(1), and one B(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Na(1), one B(1), and one B(5) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Na(1), one Sr(1), one B(4), and one B(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Na(2), one Na(3), one B(3), and one B(5) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(1), and one B(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to two equivalent Na(3), one Sr(1), and one B(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to two equivalent Na(2), one B(2), and one B(4) atom. In the tenth O site, O(10) is bonded in a 1-coordinate geometry to one Na(1), one Na(2), one Na(3), one Sr(1), and one B(1) atom. is represented by the CIF card [CIF]
data_Na3Sr(BO2)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.346
_cell_length_b   7.695
_cell_length_c   9.829
_cell_angle_alpha   81.556
_cell_angle_beta   109.030
_cell_angle_gamma   117.973
_symmetry_Int_Tables_number   1
_cell_volume   463.851
_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
  Na  Na0  1  0.792  0.281  0.452  1.0
  Na  Na1  1  0.208  0.719  0.548  1.0
  Na  Na2  1  0.156  0.501  0.165  1.0
  Na  Na3  1  0.844  0.499  0.835  1.0
  Na  Na4  1  0.721  0.014  0.115  1.0
  Na  Na5  1  0.279  0.986  0.885  1.0
  Sr  Sr6  1  0.784  0.948  0.776  1.0
  Sr  Sr7  1  0.216  0.052  0.224  1.0
  B  B8  1  0.838  0.750  0.548  1.0
  B  B9  1  0.162  0.250  0.452  1.0
  B  B10  1  0.863  0.678  0.083  1.0
  B  B11  1  0.137  0.322  0.917  1.0
  B  B12  1  0.512  0.773  0.378  1.0
  B  B13  1  0.488  0.227  0.622  1.0
  B  B14  1  0.618  0.340  0.138  1.0
  B  B15  1  0.382  0.660  0.862  1.0
  B  B16  1  0.702  0.627  0.290  1.0
  B  B17  1  0.298  0.373  0.710  1.0
  O  O18  1  0.835  0.751  0.193  1.0
  O  O19  1  0.342  0.807  0.356  1.0
  O  O20  1  0.016  0.205  0.000  1.0
  O  O21  1  0.984  0.795  1.000  1.0
  O  O22  1  0.658  0.193  0.644  1.0
  O  O23  1  0.844  0.653  0.440  1.0
  O  O24  1  0.400  0.585  0.748  1.0
  O  O25  1  0.600  0.415  0.252  1.0
  O  O26  1  0.467  0.313  0.728  1.0
  O  O27  1  0.533  0.687  0.272  1.0
  O  O28  1  0.320  0.180  0.489  1.0
  O  O29  1  0.680  0.820  0.511  1.0
  O  O30  1  0.500  0.850  0.896  1.0
  O  O31  1  0.500  0.150  0.104  1.0
  O  O32  1  0.232  0.529  0.935  1.0
  O  O33  1  0.768  0.471  0.065  1.0
  O  O34  1  0.027  0.223  0.318  1.0
  O  O35  1  0.973  0.777  0.682  1.0
  O  O36  1  0.156  0.347  0.560  1.0
  O  O37  1  0.165  0.249  0.807  1.0
[/CIF]
.