The crystal structure described by CrNiAg2F7 crystallizes in the orthorhombic Imma space group. Cr(1) is bonded to two equivalent F(3) and four equivalent F(2) atoms to form CrF6 octahedra that share corners with two equivalent Cr(1)F6 octahedra, corners with four equivalent Ni(1)F6 octahedra, and corners with four equivalent Ag(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 38-71°. Ni(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form NiF6 octahedra that share corners with two equivalent Ag(1)F6 octahedra, corners with four equivalent Cr(1)F6 octahedra, and edges with two equivalent Ag(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 38-55°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form distorted AgF6 octahedra that share corners with two equivalent Ni(1)F6 octahedra, corners with four equivalent Cr(1)F6 octahedra, and edges with two equivalent Ni(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 55-71°. In the second Ag site, Ag(2) is bonded in a square co-planar geometry to four equivalent F(1) atoms. There are three inequivalent F sites. In the first F site, F(1) is bonded to one Ni(1), one Ag(1), and two equivalent Ag(2) atoms to form a mixture of distorted corner and edge-sharing FNiAg3 tetrahedra. In the second F site, F(2) is bonded in a distorted bent 150 degrees geometry to one Cr(1), one Ni(1), and one Ag(1) atom. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrNiAg2F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.524
_cell_length_b   7.524
_cell_length_c   7.524
_cell_angle_alpha   120.659
_cell_angle_beta   118.306
_cell_angle_gamma   90.910
_symmetry_Int_Tables_number   1
_cell_volume   303.334
_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
  Cr  Cr0  1  0.500  0.500  0.500  1.0
  Cr  Cr1  1  0.500  0.000  0.000  1.0
  Ni  Ni2  1  0.000  0.500  0.500  1.0
  Ni  Ni3  1  0.500  0.000  0.500  1.0
  Ag  Ag4  1  0.500  0.500  0.000  1.0
  Ag  Ag5  1  0.000  0.000  0.000  1.0
  Ag  Ag6  1  0.000  0.500  0.000  1.0
  Ag  Ag7  1  0.000  0.000  0.500  1.0
  F  F8  1  0.866  0.594  0.273  1.0
  F  F9  1  0.179  0.906  0.273  1.0
  F  F10  1  0.201  0.818  0.776  1.0
  F  F11  1  0.457  0.682  0.382  1.0
  F  F12  1  0.457  0.075  0.776  1.0
  F  F13  1  0.201  0.425  0.382  1.0
  F  F14  1  0.799  0.575  0.618  1.0
  F  F15  1  0.543  0.925  0.224  1.0
  F  F16  1  0.543  0.318  0.618  1.0
  F  F17  1  0.799  0.182  0.224  1.0
  F  F18  1  0.415  0.250  0.165  1.0
  F  F19  1  0.134  0.406  0.727  1.0
  F  F20  1  0.821  0.094  0.727  1.0
  F  F21  1  0.585  0.750  0.835  1.0
[/CIF]
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The crystal structure described by CrNiAg2F7 crystallizes in the orthorhombic Imma space group. Cr(1) is bonded to two equivalent F(3) and four equivalent F(2) atoms to form CrF6 octahedra that share corners with two equivalent Cr(1)F6 octahedra, corners with four equivalent Ni(1)F6 octahedra, and corners with four equivalent Ag(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 38-71°. Ni(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form NiF6 octahedra that share corners with two equivalent Ag(1)F6 octahedra, corners with four equivalent Cr(1)F6 octahedra, and edges with two equivalent Ag(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 38-55°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form distorted AgF6 octahedra that share corners with two equivalent Ni(1)F6 octahedra, corners with four equivalent Cr(1)F6 octahedra, and edges with two equivalent Ni(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 55-71°. In the second Ag site, Ag(2) is bonded in a square co-planar geometry to four equivalent F(1) atoms. There are three inequivalent F sites. In the first F site, F(1) is bonded to one Ni(1), one Ag(1), and two equivalent Ag(2) atoms to form a mixture of distorted corner and edge-sharing FNiAg3 tetrahedra. In the second F site, F(2) is bonded in a distorted bent 150 degrees geometry to one Cr(1), one Ni(1), and one Ag(1) atom. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrNiAg2F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.524
_cell_length_b   7.524
_cell_length_c   7.524
_cell_angle_alpha   120.659
_cell_angle_beta   118.306
_cell_angle_gamma   90.910
_symmetry_Int_Tables_number   1
_cell_volume   303.334
_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
  Cr  Cr0  1  0.500  0.500  0.500  1.0
  Cr  Cr1  1  0.500  0.000  0.000  1.0
  Ni  Ni2  1  0.000  0.500  0.500  1.0
  Ni  Ni3  1  0.500  0.000  0.500  1.0
  Ag  Ag4  1  0.500  0.500  0.000  1.0
  Ag  Ag5  1  0.000  0.000  0.000  1.0
  Ag  Ag6  1  0.000  0.500  0.000  1.0
  Ag  Ag7  1  0.000  0.000  0.500  1.0
  F  F8  1  0.866  0.594  0.273  1.0
  F  F9  1  0.179  0.906  0.273  1.0
  F  F10  1  0.201  0.818  0.776  1.0
  F  F11  1  0.457  0.682  0.382  1.0
  F  F12  1  0.457  0.075  0.776  1.0
  F  F13  1  0.201  0.425  0.382  1.0
  F  F14  1  0.799  0.575  0.618  1.0
  F  F15  1  0.543  0.925  0.224  1.0
  F  F16  1  0.543  0.318  0.618  1.0
  F  F17  1  0.799  0.182  0.224  1.0
  F  F18  1  0.415  0.250  0.165  1.0
  F  F19  1  0.134  0.406  0.727  1.0
  F  F20  1  0.821  0.094  0.727  1.0
  F  F21  1  0.585  0.750  0.835  1.0
[/CIF]
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