The compound described by Sr2(CrO4)Cl crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(2), four equivalent O(1), and two equivalent Cl(1) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent O(1), four equivalent O(2), and two equivalent Cl(1) atoms. Cr(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one Cr(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Cr(1) atom. Cl(1) is bonded in a see-saw-like geometry to two equivalent Sr(1) and two equivalent Sr(2) atoms. is represented by the CIF file [CIF]
data_Sr2CrClO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.609
_cell_length_b   7.559
_cell_length_c   11.566
_cell_angle_alpha   89.999
_cell_angle_beta   89.996
_cell_angle_gamma   90.004
_symmetry_Int_Tables_number   1
_cell_volume   577.783
_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  0.137  0.466  0.250  1.0
  Sr  Sr1  1  0.623  0.250  0.000  1.0
  Sr  Sr2  1  0.377  0.750  1.000  1.0
  Sr  Sr3  1  0.623  0.250  0.500  1.0
  Sr  Sr4  1  0.137  0.034  0.750  1.0
  Sr  Sr5  1  0.863  0.966  0.250  1.0
  Sr  Sr6  1  0.863  0.534  0.750  1.0
  Sr  Sr7  1  0.377  0.750  0.500  1.0
  Cr  Cr8  1  0.875  0.750  0.500  1.0
  Cr  Cr9  1  0.125  0.250  0.000  1.0
  Cr  Cr10  1  0.875  0.750  0.000  1.0
  Cr  Cr11  1  0.125  0.250  0.500  1.0
  Cl  Cl12  1  0.515  0.822  0.750  1.0
  Cl  Cl13  1  0.485  0.322  0.750  1.0
  Cl  Cl14  1  0.515  0.678  0.250  1.0
  Cl  Cl15  1  0.485  0.178  0.250  1.0
  O  O16  1  0.033  0.731  0.381  1.0
  O  O17  1  0.967  0.269  0.619  1.0
  O  O18  1  0.284  0.076  0.967  1.0
  O  O19  1  0.967  0.231  0.119  1.0
  O  O20  1  0.716  0.576  0.967  1.0
  O  O21  1  0.716  0.924  0.033  1.0
  O  O22  1  0.033  0.769  0.619  1.0
  O  O23  1  0.967  0.231  0.381  1.0
  O  O24  1  0.716  0.924  0.467  1.0
  O  O25  1  0.967  0.269  0.881  1.0
  O  O26  1  0.284  0.424  0.033  1.0
  O  O27  1  0.716  0.576  0.533  1.0
  O  O28  1  0.284  0.424  0.467  1.0
  O  O29  1  0.033  0.731  0.119  1.0
  O  O30  1  0.284  0.076  0.533  1.0
  O  O31  1  0.033  0.769  0.881  1.0
[/CIF]
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The compound described by Sr2(CrO4)Cl crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(2), four equivalent O(1), and two equivalent Cl(1) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent O(1), four equivalent O(2), and two equivalent Cl(1) atoms. Cr(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one Cr(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Cr(1) atom. Cl(1) is bonded in a see-saw-like geometry to two equivalent Sr(1) and two equivalent Sr(2) atoms. is represented by the CIF file [CIF]
data_Sr2CrClO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.609
_cell_length_b   7.559
_cell_length_c   11.566
_cell_angle_alpha   89.999
_cell_angle_beta   89.996
_cell_angle_gamma   90.004
_symmetry_Int_Tables_number   1
_cell_volume   577.783
_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  0.137  0.466  0.250  1.0
  Sr  Sr1  1  0.623  0.250  0.000  1.0
  Sr  Sr2  1  0.377  0.750  1.000  1.0
  Sr  Sr3  1  0.623  0.250  0.500  1.0
  Sr  Sr4  1  0.137  0.034  0.750  1.0
  Sr  Sr5  1  0.863  0.966  0.250  1.0
  Sr  Sr6  1  0.863  0.534  0.750  1.0
  Sr  Sr7  1  0.377  0.750  0.500  1.0
  Cr  Cr8  1  0.875  0.750  0.500  1.0
  Cr  Cr9  1  0.125  0.250  0.000  1.0
  Cr  Cr10  1  0.875  0.750  0.000  1.0
  Cr  Cr11  1  0.125  0.250  0.500  1.0
  Cl  Cl12  1  0.515  0.822  0.750  1.0
  Cl  Cl13  1  0.485  0.322  0.750  1.0
  Cl  Cl14  1  0.515  0.678  0.250  1.0
  Cl  Cl15  1  0.485  0.178  0.250  1.0
  O  O16  1  0.033  0.731  0.381  1.0
  O  O17  1  0.967  0.269  0.619  1.0
  O  O18  1  0.284  0.076  0.967  1.0
  O  O19  1  0.967  0.231  0.119  1.0
  O  O20  1  0.716  0.576  0.967  1.0
  O  O21  1  0.716  0.924  0.033  1.0
  O  O22  1  0.033  0.769  0.619  1.0
  O  O23  1  0.967  0.231  0.381  1.0
  O  O24  1  0.716  0.924  0.467  1.0
  O  O25  1  0.967  0.269  0.881  1.0
  O  O26  1  0.284  0.424  0.033  1.0
  O  O27  1  0.716  0.576  0.533  1.0
  O  O28  1  0.284  0.424  0.467  1.0
  O  O29  1  0.033  0.731  0.119  1.0
  O  O30  1  0.284  0.076  0.533  1.0
  O  O31  1  0.033  0.769  0.881  1.0
[/CIF]
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