The material described by Sr2Ni(SeO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), one O(7), one O(9), two equivalent O(2), and two equivalent O(4) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. Ni(1) is bonded in an octahedral geometry to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(5), one O(8), and one O(9) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(4) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(3), one O(6), and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(2), one Ni(1), and one Se(2) atom to form distorted OSr2NiSe tetrahedra that share  a cornercorner with one O(2)Sr3Se tetrahedra,  an edgeedge with one O(1)Sr2NiSe tetrahedra, and  an edgeedge with one O(2)Sr3Se tetrahedra. In the second O site, O(2) is bonded to one Sr(2), two equivalent Sr(1), and one Se(2) atom to form distorted OSr3Se tetrahedra that share  a cornercorner with one O(1)Sr2NiSe tetrahedra,  an edgeedge with one O(1)Sr2NiSe tetrahedra, and  an edgeedge with one O(2)Sr3Se tetrahedra. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Se(3) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Ni(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Sr(1), one Ni(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Sr(2), one Ni(1), and one Se(3) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Ni(1), and one Se(3) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Sr(2), one Ni(1), and one Se(1) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Sr(1), one Sr(2), and one Se(1) atom. is represented by the CIF card [CIF]
data_Sr2Ni(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.444
_cell_length_b   7.721
_cell_length_c   8.850
_cell_angle_alpha   103.020
_cell_angle_beta   105.491
_cell_angle_gamma   95.394
_symmetry_Int_Tables_number   1
_cell_volume   471.062
_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
  Ni  Ni0  1  0.594  0.335  0.252  1.0
  Ni  Ni1  1  0.406  0.665  0.748  1.0
  O  O2  1  0.864  0.304  0.401  1.0
  O  O3  1  0.136  0.696  0.599  1.0
  O  O4  1  0.007  0.122  0.180  1.0
  O  O5  1  0.993  0.878  0.820  1.0
  O  O6  1  0.976  0.701  0.148  1.0
  O  O7  1  0.024  0.299  0.852  1.0
  O  O8  1  0.641  0.057  0.149  1.0
  O  O9  1  0.359  0.943  0.851  1.0
  O  O10  1  0.566  0.813  0.645  1.0
  O  O11  1  0.434  0.187  0.355  1.0
  O  O12  1  0.675  0.640  0.885  1.0
  O  O13  1  0.325  0.360  0.115  1.0
  O  O14  1  0.727  0.408  0.088  1.0
  O  O15  1  0.273  0.592  0.912  1.0
  O  O16  1  0.334  0.422  0.575  1.0
  O  O17  1  0.666  0.578  0.425  1.0
  O  O18  1  0.631  0.250  0.672  1.0
  O  O19  1  0.369  0.750  0.328  1.0
  Se  Se20  1  0.595  0.787  0.455  1.0
  Se  Se21  1  0.405  0.213  0.545  1.0
  Se  Se22  1  0.859  0.084  0.294  1.0
  Se  Se23  1  0.141  0.916  0.706  1.0
  Se  Se24  1  0.735  0.635  0.087  1.0
  Se  Se25  1  0.265  0.365  0.913  1.0
  Sr  Sr26  1  0.748  0.087  0.889  1.0
  Sr  Sr27  1  0.252  0.913  0.111  1.0
  Sr  Sr28  1  0.872  0.518  0.693  1.0
  Sr  Sr29  1  0.128  0.482  0.307  1.0
[/CIF]
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The material described by Sr2Ni(SeO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), one O(7), one O(9), two equivalent O(2), and two equivalent O(4) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. Ni(1) is bonded in an octahedral geometry to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(5), one O(8), and one O(9) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(4) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(3), one O(6), and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(2), one Ni(1), and one Se(2) atom to form distorted OSr2NiSe tetrahedra that share  a cornercorner with one O(2)Sr3Se tetrahedra,  an edgeedge with one O(1)Sr2NiSe tetrahedra, and  an edgeedge with one O(2)Sr3Se tetrahedra. In the second O site, O(2) is bonded to one Sr(2), two equivalent Sr(1), and one Se(2) atom to form distorted OSr3Se tetrahedra that share  a cornercorner with one O(1)Sr2NiSe tetrahedra,  an edgeedge with one O(1)Sr2NiSe tetrahedra, and  an edgeedge with one O(2)Sr3Se tetrahedra. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Se(3) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Ni(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Sr(1), one Ni(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Sr(2), one Ni(1), and one Se(3) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Ni(1), and one Se(3) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Sr(2), one Ni(1), and one Se(1) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Sr(1), one Sr(2), and one Se(1) atom. is represented by the CIF card [CIF]
data_Sr2Ni(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.444
_cell_length_b   7.721
_cell_length_c   8.850
_cell_angle_alpha   103.020
_cell_angle_beta   105.491
_cell_angle_gamma   95.394
_symmetry_Int_Tables_number   1
_cell_volume   471.062
_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
  Ni  Ni0  1  0.594  0.335  0.252  1.0
  Ni  Ni1  1  0.406  0.665  0.748  1.0
  O  O2  1  0.864  0.304  0.401  1.0
  O  O3  1  0.136  0.696  0.599  1.0
  O  O4  1  0.007  0.122  0.180  1.0
  O  O5  1  0.993  0.878  0.820  1.0
  O  O6  1  0.976  0.701  0.148  1.0
  O  O7  1  0.024  0.299  0.852  1.0
  O  O8  1  0.641  0.057  0.149  1.0
  O  O9  1  0.359  0.943  0.851  1.0
  O  O10  1  0.566  0.813  0.645  1.0
  O  O11  1  0.434  0.187  0.355  1.0
  O  O12  1  0.675  0.640  0.885  1.0
  O  O13  1  0.325  0.360  0.115  1.0
  O  O14  1  0.727  0.408  0.088  1.0
  O  O15  1  0.273  0.592  0.912  1.0
  O  O16  1  0.334  0.422  0.575  1.0
  O  O17  1  0.666  0.578  0.425  1.0
  O  O18  1  0.631  0.250  0.672  1.0
  O  O19  1  0.369  0.750  0.328  1.0
  Se  Se20  1  0.595  0.787  0.455  1.0
  Se  Se21  1  0.405  0.213  0.545  1.0
  Se  Se22  1  0.859  0.084  0.294  1.0
  Se  Se23  1  0.141  0.916  0.706  1.0
  Se  Se24  1  0.735  0.635  0.087  1.0
  Se  Se25  1  0.265  0.365  0.913  1.0
  Sr  Sr26  1  0.748  0.087  0.889  1.0
  Sr  Sr27  1  0.252  0.913  0.111  1.0
  Sr  Sr28  1  0.872  0.518  0.693  1.0
  Sr  Sr29  1  0.128  0.482  0.307  1.0
[/CIF]
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