The material described by UCrC2 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 6-coordinate geometry to three equivalent C(1) and three equivalent C(2) atoms. Cr(1) is bonded in a 6-coordinate geometry to three equivalent C(1) and three equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded to three equivalent U(1), three equivalent Cr(1), and one C(2) atom to form distorted edge-sharing CU3Cr3C hexagonal pyramids. In the second C site, C(2) is bonded in a 7-coordinate geometry to three equivalent U(1), three equivalent Cr(1), and one C(1) atom. is represented by the CIF card [CIF]
data_UCrC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.729
_cell_length_b   5.246
_cell_length_c   10.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   203.330
_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  0.250  0.104  0.856  1.0
  U  U1  1  0.750  0.896  0.144  1.0
  U  U2  1  0.250  0.604  0.644  1.0
  U  U3  1  0.750  0.396  0.356  1.0
  Cr  Cr4  1  0.750  0.099  0.570  1.0
  Cr  Cr5  1  0.750  0.599  0.930  1.0
  Cr  Cr6  1  0.250  0.901  0.430  1.0
  Cr  Cr7  1  0.250  0.401  0.070  1.0
  C  C8  1  0.250  0.755  0.001  1.0
  C  C9  1  0.750  0.245  0.999  1.0
  C  C10  1  0.250  0.255  0.499  1.0
  C  C11  1  0.750  0.745  0.501  1.0
  C  C12  1  0.250  0.601  0.876  1.0
  C  C13  1  0.750  0.899  0.376  1.0
  C  C14  1  0.250  0.101  0.624  1.0
  C  C15  1  0.750  0.399  0.124  1.0
[/CIF]
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The material described by UCrC2 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 6-coordinate geometry to three equivalent C(1) and three equivalent C(2) atoms. Cr(1) is bonded in a 6-coordinate geometry to three equivalent C(1) and three equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded to three equivalent U(1), three equivalent Cr(1), and one C(2) atom to form distorted edge-sharing CU3Cr3C hexagonal pyramids. In the second C site, C(2) is bonded in a 7-coordinate geometry to three equivalent U(1), three equivalent Cr(1), and one C(1) atom. is represented by the CIF card [CIF]
data_UCrC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.729
_cell_length_b   5.246
_cell_length_c   10.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   203.330
_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  0.250  0.104  0.856  1.0
  U  U1  1  0.750  0.896  0.144  1.0
  U  U2  1  0.250  0.604  0.644  1.0
  U  U3  1  0.750  0.396  0.356  1.0
  Cr  Cr4  1  0.750  0.099  0.570  1.0
  Cr  Cr5  1  0.750  0.599  0.930  1.0
  Cr  Cr6  1  0.250  0.901  0.430  1.0
  Cr  Cr7  1  0.250  0.401  0.070  1.0
  C  C8  1  0.250  0.755  0.001  1.0
  C  C9  1  0.750  0.245  0.999  1.0
  C  C10  1  0.250  0.255  0.499  1.0
  C  C11  1  0.750  0.745  0.501  1.0
  C  C12  1  0.250  0.601  0.876  1.0
  C  C13  1  0.750  0.899  0.376  1.0
  C  C14  1  0.250  0.101  0.624  1.0
  C  C15  1  0.750  0.399  0.124  1.0
[/CIF]
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