The crystal structure described by Sr2CuH2(SeO3)4 crystallizes in the triclinic P-1 space group. Sr(1) is bonded to one O(1), one O(4), one O(5), two equivalent O(2), and two equivalent O(6) atoms to form distorted edge-sharing SrO7 pentagonal bipyramids. Cu(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(5) atoms. H(1) is bonded in a single-bond geometry to one O(1) atom. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(2), one O(3), and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Cu(1), and one H(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sr(1) and one Se(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sr(1), one Se(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Cu(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sr(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2CuH2(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.815
_cell_length_b   7.158
_cell_length_c   9.011
_cell_angle_alpha   72.857
_cell_angle_beta   71.328
_cell_angle_gamma   80.936
_symmetry_Int_Tables_number   1
_cell_volume   338.682
_cell_formula_units_Z   1
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  0.106  0.206  0.580  1.0
  Sr  Sr1  1  0.894  0.794  0.420  1.0
  Cu  Cu2  1  0.000  0.000  0.000  1.0
  H  H3  1  0.308  0.825  0.141  1.0
  H  H4  1  0.692  0.175  0.859  1.0
  Se  Se5  1  0.458  0.123  0.207  1.0
  Se  Se6  1  0.202  0.560  0.772  1.0
  Se  Se7  1  0.798  0.440  0.228  1.0
  Se  Se8  1  0.542  0.877  0.793  1.0
  O  O9  1  0.152  0.797  0.140  1.0
  O  O10  1  0.154  0.555  0.596  1.0
  O  O11  1  0.978  0.703  0.859  1.0
  O  O12  1  0.545  0.248  0.332  1.0
  O  O13  1  0.313  0.063  0.815  1.0
  O  O14  1  0.246  0.001  0.370  1.0
  O  O15  1  0.754  0.999  0.630  1.0
  O  O16  1  0.687  0.937  0.185  1.0
  O  O17  1  0.455  0.752  0.668  1.0
  O  O18  1  0.022  0.297  0.141  1.0
  O  O19  1  0.846  0.445  0.404  1.0
  O  O20  1  0.848  0.203  0.860  1.0
[/CIF]
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The crystal structure described by Sr2CuH2(SeO3)4 crystallizes in the triclinic P-1 space group. Sr(1) is bonded to one O(1), one O(4), one O(5), two equivalent O(2), and two equivalent O(6) atoms to form distorted edge-sharing SrO7 pentagonal bipyramids. Cu(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(5) atoms. H(1) is bonded in a single-bond geometry to one O(1) atom. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(2), one O(3), and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Cu(1), and one H(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sr(1) and one Se(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sr(1), one Se(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Cu(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sr(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2CuH2(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.815
_cell_length_b   7.158
_cell_length_c   9.011
_cell_angle_alpha   72.857
_cell_angle_beta   71.328
_cell_angle_gamma   80.936
_symmetry_Int_Tables_number   1
_cell_volume   338.682
_cell_formula_units_Z   1
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  0.106  0.206  0.580  1.0
  Sr  Sr1  1  0.894  0.794  0.420  1.0
  Cu  Cu2  1  0.000  0.000  0.000  1.0
  H  H3  1  0.308  0.825  0.141  1.0
  H  H4  1  0.692  0.175  0.859  1.0
  Se  Se5  1  0.458  0.123  0.207  1.0
  Se  Se6  1  0.202  0.560  0.772  1.0
  Se  Se7  1  0.798  0.440  0.228  1.0
  Se  Se8  1  0.542  0.877  0.793  1.0
  O  O9  1  0.152  0.797  0.140  1.0
  O  O10  1  0.154  0.555  0.596  1.0
  O  O11  1  0.978  0.703  0.859  1.0
  O  O12  1  0.545  0.248  0.332  1.0
  O  O13  1  0.313  0.063  0.815  1.0
  O  O14  1  0.246  0.001  0.370  1.0
  O  O15  1  0.754  0.999  0.630  1.0
  O  O16  1  0.687  0.937  0.185  1.0
  O  O17  1  0.455  0.752  0.668  1.0
  O  O18  1  0.022  0.297  0.141  1.0
  O  O19  1  0.846  0.445  0.404  1.0
  O  O20  1  0.848  0.203  0.860  1.0
[/CIF]
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