The compound described by Eu2C(NCl)2 crystallizes in the monoclinic C2/m space group. Eu(1) is bonded in a 7-coordinate geometry to three equivalent N(1) and four equivalent Cl(1) atoms. C(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded to three equivalent Eu(1) and one C(1) atom to form distorted NEu3C tetrahedra that share corners with three equivalent N(1)Eu3C tetrahedra, corners with ten equivalent Cl(1)Eu4 tetrahedra,  an edgeedge with one Cl(1)Eu4 tetrahedra, and edges with two equivalent N(1)Eu3C tetrahedra. Cl(1) is bonded to four equivalent Eu(1) atoms to form ClEu4 tetrahedra that share corners with six equivalent Cl(1)Eu4 tetrahedra, corners with ten equivalent N(1)Eu3C tetrahedra,  an edgeedge with one N(1)Eu3C tetrahedra, and edges with three equivalent Cl(1)Eu4 tetrahedra. is represented by the CIF file [CIF]
data_Eu2C(NCl)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.280
_cell_length_b   5.280
_cell_length_c   7.243
_cell_angle_alpha   82.456
_cell_angle_beta   82.456
_cell_angle_gamma   47.194
_symmetry_Int_Tables_number   1
_cell_volume   146.590
_cell_formula_units_Z   1
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
  Eu  Eu0  1  0.682  0.682  0.729  1.0
  Eu  Eu1  1  0.318  0.318  0.271  1.0
  C  C2  1  0.000  0.000  0.500  1.0
  N  N3  1  0.884  0.884  0.447  1.0
  N  N4  1  0.116  0.116  0.553  1.0
  Cl  Cl5  1  0.370  0.370  0.851  1.0
  Cl  Cl6  1  0.630  0.630  0.149  1.0
[/CIF]
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The compound described by Eu2C(NCl)2 crystallizes in the monoclinic C2/m space group. Eu(1) is bonded in a 7-coordinate geometry to three equivalent N(1) and four equivalent Cl(1) atoms. C(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded to three equivalent Eu(1) and one C(1) atom to form distorted NEu3C tetrahedra that share corners with three equivalent N(1)Eu3C tetrahedra, corners with ten equivalent Cl(1)Eu4 tetrahedra,  an edgeedge with one Cl(1)Eu4 tetrahedra, and edges with two equivalent N(1)Eu3C tetrahedra. Cl(1) is bonded to four equivalent Eu(1) atoms to form ClEu4 tetrahedra that share corners with six equivalent Cl(1)Eu4 tetrahedra, corners with ten equivalent N(1)Eu3C tetrahedra,  an edgeedge with one N(1)Eu3C tetrahedra, and edges with three equivalent Cl(1)Eu4 tetrahedra. is represented by the CIF file [CIF]
data_Eu2C(NCl)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.280
_cell_length_b   5.280
_cell_length_c   7.243
_cell_angle_alpha   82.456
_cell_angle_beta   82.456
_cell_angle_gamma   47.194
_symmetry_Int_Tables_number   1
_cell_volume   146.590
_cell_formula_units_Z   1
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
  Eu  Eu0  1  0.682  0.682  0.729  1.0
  Eu  Eu1  1  0.318  0.318  0.271  1.0
  C  C2  1  0.000  0.000  0.500  1.0
  N  N3  1  0.884  0.884  0.447  1.0
  N  N4  1  0.116  0.116  0.553  1.0
  Cl  Cl5  1  0.370  0.370  0.851  1.0
  Cl  Cl6  1  0.630  0.630  0.149  1.0
[/CIF]
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