The structure described by UCoC2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded to five equivalent C(2) atoms to form a mixture of distorted corner and edge-sharing UC5 square pyramids. Co(1) is bonded to four equivalent C(1) atoms to form CoC4 tetrahedra that share corners with four equivalent C(2)U5C octahedra, corners with four equivalent Co(1)C4 tetrahedra, and edges with four equivalent Co(1)C4 tetrahedra. The corner-sharing octahedral tilt angles are 57°. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 5-coordinate geometry to four equivalent Co(1) and one C(2) atom. In the second C site, C(2) is bonded to five equivalent U(1) and one C(1) atom to form CU5C octahedra that share corners with four equivalent C(2)U5C octahedra, corners with four equivalent Co(1)C4 tetrahedra, and edges with eight equivalent C(2)U5C octahedra. The corner-sharing octahedral tilt angles are 14°. is represented by the Crystallographic Information File (CIF) [CIF]
data_UCoC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.469
_cell_length_b   3.469
_cell_length_c   7.276
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   87.561
_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
  U  U0  1  0.000  0.500  0.318  1.0
  U  U1  1  0.500  0.000  0.682  1.0
  Co  Co2  1  0.500  0.500  1.000  1.0
  Co  Co3  1  0.000  0.000  1.000  1.0
  C  C4  1  0.000  0.500  0.845  1.0
  C  C5  1  0.500  0.000  0.155  1.0
  C  C6  1  0.000  0.500  0.642  1.0
  C  C7  1  0.500  0.000  0.358  1.0
[/CIF]
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The structure described by UCoC2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded to five equivalent C(2) atoms to form a mixture of distorted corner and edge-sharing UC5 square pyramids. Co(1) is bonded to four equivalent C(1) atoms to form CoC4 tetrahedra that share corners with four equivalent C(2)U5C octahedra, corners with four equivalent Co(1)C4 tetrahedra, and edges with four equivalent Co(1)C4 tetrahedra. The corner-sharing octahedral tilt angles are 57°. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 5-coordinate geometry to four equivalent Co(1) and one C(2) atom. In the second C site, C(2) is bonded to five equivalent U(1) and one C(1) atom to form CU5C octahedra that share corners with four equivalent C(2)U5C octahedra, corners with four equivalent Co(1)C4 tetrahedra, and edges with eight equivalent C(2)U5C octahedra. The corner-sharing octahedral tilt angles are 14°. is represented by the Crystallographic Information File (CIF) [CIF]
data_UCoC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.469
_cell_length_b   3.469
_cell_length_c   7.276
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   87.561
_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
  U  U0  1  0.000  0.500  0.318  1.0
  U  U1  1  0.500  0.000  0.682  1.0
  Co  Co2  1  0.500  0.500  1.000  1.0
  Co  Co3  1  0.000  0.000  1.000  1.0
  C  C4  1  0.000  0.500  0.845  1.0
  C  C5  1  0.500  0.000  0.155  1.0
  C  C6  1  0.000  0.500  0.642  1.0
  C  C7  1  0.500  0.000  0.358  1.0
[/CIF]
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