The compound described by Np2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Np(1) is bonded in a 6-coordinate geometry to six equivalent C(1) atoms. C(1) is bonded to four equivalent Np(1) and one C(1) atom to form a mixture of distorted edge and corner-sharing CNp4C trigonal bipyramids. is represented by the CIF card [CIF]
data_Np2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.951
_cell_length_b   6.951
_cell_length_c   6.951
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   258.570
_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
  Np  Np0  1  0.599  0.500  0.000  1.0
  Np  Np1  1  0.500  0.000  0.599  1.0
  Np  Np2  1  0.000  0.599  0.500  1.0
  Np  Np3  1  0.901  0.901  0.901  1.0
  Np  Np4  1  0.500  0.000  0.099  1.0
  Np  Np5  1  0.099  0.500  0.000  1.0
  Np  Np6  1  0.000  0.099  0.500  1.0
  Np  Np7  1  0.401  0.401  0.401  1.0
  C  C8  1  0.787  0.250  0.037  1.0
  C  C9  1  0.713  0.750  0.463  1.0
  C  C10  1  0.537  0.750  0.287  1.0
  C  C11  1  0.963  0.250  0.213  1.0
  C  C12  1  0.250  0.037  0.787  1.0
  C  C13  1  0.750  0.463  0.713  1.0
  C  C14  1  0.750  0.287  0.537  1.0
  C  C15  1  0.250  0.213  0.963  1.0
  C  C16  1  0.037  0.787  0.250  1.0
  C  C17  1  0.463  0.713  0.750  1.0
  C  C18  1  0.287  0.537  0.750  1.0
  C  C19  1  0.213  0.963  0.250  1.0
[/CIF]
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The compound described by Np2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Np(1) is bonded in a 6-coordinate geometry to six equivalent C(1) atoms. C(1) is bonded to four equivalent Np(1) and one C(1) atom to form a mixture of distorted edge and corner-sharing CNp4C trigonal bipyramids. is represented by the CIF card [CIF]
data_Np2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.951
_cell_length_b   6.951
_cell_length_c   6.951
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   258.570
_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
  Np  Np0  1  0.599  0.500  0.000  1.0
  Np  Np1  1  0.500  0.000  0.599  1.0
  Np  Np2  1  0.000  0.599  0.500  1.0
  Np  Np3  1  0.901  0.901  0.901  1.0
  Np  Np4  1  0.500  0.000  0.099  1.0
  Np  Np5  1  0.099  0.500  0.000  1.0
  Np  Np6  1  0.000  0.099  0.500  1.0
  Np  Np7  1  0.401  0.401  0.401  1.0
  C  C8  1  0.787  0.250  0.037  1.0
  C  C9  1  0.713  0.750  0.463  1.0
  C  C10  1  0.537  0.750  0.287  1.0
  C  C11  1  0.963  0.250  0.213  1.0
  C  C12  1  0.250  0.037  0.787  1.0
  C  C13  1  0.750  0.463  0.713  1.0
  C  C14  1  0.750  0.287  0.537  1.0
  C  C15  1  0.250  0.213  0.963  1.0
  C  C16  1  0.037  0.787  0.250  1.0
  C  C17  1  0.463  0.713  0.750  1.0
  C  C18  1  0.287  0.537  0.750  1.0
  C  C19  1  0.213  0.963  0.250  1.0
[/CIF]
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