The structure described by CuGe2N3 is Enargite-like structured and crystallizes in the orthorhombic Cmc2_1 space group. Cu(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form CuN4 tetrahedra that share corners with two equivalent Cu(1)N4 tetrahedra and corners with ten equivalent Ge(1)N4 tetrahedra. Ge(1) is bonded to one N(2) and three equivalent N(1) atoms to form GeN4 tetrahedra that share corners with five equivalent Cu(1)N4 tetrahedra and corners with seven equivalent Ge(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(2) is bonded to two equivalent Cu(1) and two equivalent Ge(1) atoms to form NCu2Ge2 tetrahedra that share corners with two equivalent N(2)Cu2Ge2 tetrahedra and corners with ten equivalent N(1)CuGe3 tetrahedra. In the second N site, N(1) is bonded to one Cu(1) and three equivalent Ge(1) atoms to form NCuGe3 tetrahedra that share corners with five equivalent N(2)Cu2Ge2 tetrahedra and corners with seven equivalent N(1)CuGe3 tetrahedra. is represented by the CIF file [CIF]
data_CuGe2N3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.533
_cell_length_b   5.536
_cell_length_c   5.215
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.022
_symmetry_Int_Tables_number   1
_cell_volume   138.298
_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
  Cu  Cu0  1  0.000  0.660  0.503  1.0
  Cu  Cu1  1  0.000  0.340  0.003  1.0
  Ge  Ge2  1  0.329  0.331  0.492  1.0
  Ge  Ge3  1  0.671  0.002  0.492  1.0
  Ge  Ge4  1  0.671  0.669  0.992  1.0
  Ge  Ge5  1  0.329  0.998  0.992  1.0
  N  N6  1  0.370  0.335  0.855  1.0
  N  N7  1  0.630  0.965  0.855  1.0
  N  N8  1  0.630  0.665  0.355  1.0
  N  N9  1  0.370  0.035  0.355  1.0
  N  N10  1  0.000  0.697  0.891  1.0
  N  N11  1  0.000  0.303  0.391  1.0
[/CIF]
.
The structure described by CuGe2N3 is Enargite-like structured and crystallizes in the orthorhombic Cmc2_1 space group. Cu(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form CuN4 tetrahedra that share corners with two equivalent Cu(1)N4 tetrahedra and corners with ten equivalent Ge(1)N4 tetrahedra. Ge(1) is bonded to one N(2) and three equivalent N(1) atoms to form GeN4 tetrahedra that share corners with five equivalent Cu(1)N4 tetrahedra and corners with seven equivalent Ge(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(2) is bonded to two equivalent Cu(1) and two equivalent Ge(1) atoms to form NCu2Ge2 tetrahedra that share corners with two equivalent N(2)Cu2Ge2 tetrahedra and corners with ten equivalent N(1)CuGe3 tetrahedra. In the second N site, N(1) is bonded to one Cu(1) and three equivalent Ge(1) atoms to form NCuGe3 tetrahedra that share corners with five equivalent N(2)Cu2Ge2 tetrahedra and corners with seven equivalent N(1)CuGe3 tetrahedra. is represented by the CIF file [CIF]
data_CuGe2N3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.533
_cell_length_b   5.536
_cell_length_c   5.215
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.022
_symmetry_Int_Tables_number   1
_cell_volume   138.298
_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
  Cu  Cu0  1  0.000  0.660  0.503  1.0
  Cu  Cu1  1  0.000  0.340  0.003  1.0
  Ge  Ge2  1  0.329  0.331  0.492  1.0
  Ge  Ge3  1  0.671  0.002  0.492  1.0
  Ge  Ge4  1  0.671  0.669  0.992  1.0
  Ge  Ge5  1  0.329  0.998  0.992  1.0
  N  N6  1  0.370  0.335  0.855  1.0
  N  N7  1  0.630  0.965  0.855  1.0
  N  N8  1  0.630  0.665  0.355  1.0
  N  N9  1  0.370  0.035  0.355  1.0
  N  N10  1  0.000  0.697  0.891  1.0
  N  N11  1  0.000  0.303  0.391  1.0
[/CIF]
.