The material structure described by UAs(O2F)2(CN)2 crystallizes in the orthorhombic Fddd space group. The structure consists of sixteen 1,2-diazatricyclo[1.1.0.02,4]butane molecules inside a UAs(O2F)2 framework. In the UAs(O2F)2 framework, U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(1) atoms to form UO4F2 octahedra that share corners with four equivalent As(1)O4 tetrahedra. As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with four equivalent U(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 7-49°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one U(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one U(1) and one As(1) atom. F(1) is bonded in a single-bond geometry to one U(1) atom. is represented by the CIF card [CIF]
data_UAsC2N2(O2F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.907
_cell_length_b   9.695
_cell_length_c   10.993
_cell_angle_alpha   81.565
_cell_angle_beta   68.920
_cell_angle_gamma   65.932
_symmetry_Int_Tables_number   1
_cell_volume   717.928
_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
  U  U0  1  0.959  0.083  0.750  1.0
  U  U1  1  0.291  0.417  0.750  1.0
  U  U2  1  0.041  0.917  0.250  1.0
  U  U3  1  0.709  0.583  0.250  1.0
  As  As4  1  0.997  0.250  0.005  1.0
  As  As5  1  0.753  0.250  0.495  1.0
  As  As6  1  0.003  0.750  0.995  1.0
  As  As7  1  0.247  0.750  0.505  1.0
  C  C8  1  0.555  0.752  0.675  1.0
  C  C9  1  0.483  0.748  0.825  1.0
  C  C10  1  0.692  0.752  0.825  1.0
  C  C11  1  0.769  0.748  0.675  1.0
  C  C12  1  0.445  0.248  0.325  1.0
  C  C13  1  0.517  0.252  0.175  1.0
  C  C14  1  0.308  0.248  0.175  1.0
  C  C15  1  0.231  0.252  0.325  1.0
  N  N16  1  0.661  0.843  0.594  1.0
  N  N17  1  0.598  0.657  0.906  1.0
  N  N18  1  0.496  0.843  0.906  1.0
  N  N19  1  0.746  0.657  0.594  1.0
  N  N20  1  0.339  0.157  0.406  1.0
  N  N21  1  0.402  0.343  0.094  1.0
  N  N22  1  0.504  0.157  0.094  1.0
  N  N23  1  0.254  0.343  0.406  1.0
  O  O24  1  0.877  0.406  0.105  1.0
  O  O25  1  0.888  0.094  0.395  1.0
  O  O26  1  0.718  0.406  0.395  1.0
  O  O27  1  0.018  0.094  0.105  1.0
  O  O28  1  0.123  0.594  0.895  1.0
  O  O29  1  0.112  0.906  0.605  1.0
  O  O30  1  0.282  0.594  0.605  1.0
  O  O31  1  0.982  0.906  0.895  1.0
  O  O32  1  0.871  0.240  0.910  1.0
  O  O33  1  0.521  0.260  0.590  1.0
  O  O34  1  0.889  0.240  0.590  1.0
  O  O35  1  0.219  0.260  0.910  1.0
  O  O36  1  0.129  0.760  0.090  1.0
  O  O37  1  0.479  0.740  0.410  1.0
  O  O38  1  0.111  0.760  0.410  1.0
  O  O39  1  0.781  0.740  0.090  1.0
  F  F40  1  0.230  0.080  0.721  1.0
  F  F41  1  0.531  0.420  0.779  1.0
  F  F42  1  0.690  0.080  0.779  1.0
  F  F43  1  0.049  0.420  0.721  1.0
  F  F44  1  0.770  0.920  0.279  1.0
  F  F45  1  0.469  0.580  0.221  1.0
  F  F46  1  0.310  0.920  0.221  1.0
  F  F47  1  0.951  0.580  0.279  1.0
[/CIF]
.
The material structure described by UAs(O2F)2(CN)2 crystallizes in the orthorhombic Fddd space group. The structure consists of sixteen 1,2-diazatricyclo[1.1.0.02,4]butane molecules inside a UAs(O2F)2 framework. In the UAs(O2F)2 framework, U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(1) atoms to form UO4F2 octahedra that share corners with four equivalent As(1)O4 tetrahedra. As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with four equivalent U(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 7-49°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one U(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one U(1) and one As(1) atom. F(1) is bonded in a single-bond geometry to one U(1) atom. is represented by the CIF card [CIF]
data_UAsC2N2(O2F)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.907
_cell_length_b   9.695
_cell_length_c   10.993
_cell_angle_alpha   81.565
_cell_angle_beta   68.920
_cell_angle_gamma   65.932
_symmetry_Int_Tables_number   1
_cell_volume   717.928
_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
  U  U0  1  0.959  0.083  0.750  1.0
  U  U1  1  0.291  0.417  0.750  1.0
  U  U2  1  0.041  0.917  0.250  1.0
  U  U3  1  0.709  0.583  0.250  1.0
  As  As4  1  0.997  0.250  0.005  1.0
  As  As5  1  0.753  0.250  0.495  1.0
  As  As6  1  0.003  0.750  0.995  1.0
  As  As7  1  0.247  0.750  0.505  1.0
  C  C8  1  0.555  0.752  0.675  1.0
  C  C9  1  0.483  0.748  0.825  1.0
  C  C10  1  0.692  0.752  0.825  1.0
  C  C11  1  0.769  0.748  0.675  1.0
  C  C12  1  0.445  0.248  0.325  1.0
  C  C13  1  0.517  0.252  0.175  1.0
  C  C14  1  0.308  0.248  0.175  1.0
  C  C15  1  0.231  0.252  0.325  1.0
  N  N16  1  0.661  0.843  0.594  1.0
  N  N17  1  0.598  0.657  0.906  1.0
  N  N18  1  0.496  0.843  0.906  1.0
  N  N19  1  0.746  0.657  0.594  1.0
  N  N20  1  0.339  0.157  0.406  1.0
  N  N21  1  0.402  0.343  0.094  1.0
  N  N22  1  0.504  0.157  0.094  1.0
  N  N23  1  0.254  0.343  0.406  1.0
  O  O24  1  0.877  0.406  0.105  1.0
  O  O25  1  0.888  0.094  0.395  1.0
  O  O26  1  0.718  0.406  0.395  1.0
  O  O27  1  0.018  0.094  0.105  1.0
  O  O28  1  0.123  0.594  0.895  1.0
  O  O29  1  0.112  0.906  0.605  1.0
  O  O30  1  0.282  0.594  0.605  1.0
  O  O31  1  0.982  0.906  0.895  1.0
  O  O32  1  0.871  0.240  0.910  1.0
  O  O33  1  0.521  0.260  0.590  1.0
  O  O34  1  0.889  0.240  0.590  1.0
  O  O35  1  0.219  0.260  0.910  1.0
  O  O36  1  0.129  0.760  0.090  1.0
  O  O37  1  0.479  0.740  0.410  1.0
  O  O38  1  0.111  0.760  0.410  1.0
  O  O39  1  0.781  0.740  0.090  1.0
  F  F40  1  0.230  0.080  0.721  1.0
  F  F41  1  0.531  0.420  0.779  1.0
  F  F42  1  0.690  0.080  0.779  1.0
  F  F43  1  0.049  0.420  0.721  1.0
  F  F44  1  0.770  0.920  0.279  1.0
  F  F45  1  0.469  0.580  0.221  1.0
  F  F46  1  0.310  0.920  0.221  1.0
  F  F47  1  0.951  0.580  0.279  1.0
[/CIF]
.