The compound described by Ce3Cr10N11 crystallizes in the cubic Fm-3m space group. Ce(1) is bonded in a 9-coordinate geometry to one N(3), four equivalent N(1), and four equivalent N(2) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent N(1) and two equivalent N(2) atoms. In the second Cr site, Cr(1) is bonded to one N(4) and three equivalent N(1) atoms to form a mixture of distorted edge and corner-sharing CrN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Ce(1), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the second N site, N(2) is bonded to three equivalent Ce(1) and three equivalent Cr(2) atoms to form distorted NCe3Cr3 octahedra that share corners with six equivalent N(2)Ce3Cr3 octahedra, edges with three equivalent N(2)Ce3Cr3 octahedra, and  a faceface with one N(3)Ce6 octahedra. The corner-sharing octahedral tilt angles range from 20-32°. In the third N site, N(3) is bonded to six equivalent Ce(1) atoms to form face-sharing NCe6 octahedra. In the fourth N site, N(4) is bonded in a body-centered cubic geometry to eight equivalent Cr(1) atoms. is represented by the CIF card [CIF]
data_Ce3Cr10N11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.990
_cell_length_b   8.990
_cell_length_c   8.990
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   513.730
_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
  Ce  Ce0  1  0.694  0.306  0.306  1.0
  Ce  Ce1  1  0.306  0.694  0.694  1.0
  Ce  Ce2  1  0.306  0.694  0.306  1.0
  Ce  Ce3  1  0.694  0.306  0.694  1.0
  Ce  Ce4  1  0.306  0.306  0.694  1.0
  Ce  Ce5  1  0.694  0.694  0.306  1.0
  Cr  Cr6  1  0.098  0.098  0.098  1.0
  Cr  Cr7  1  0.902  0.902  0.902  1.0
  Cr  Cr8  1  0.098  0.098  0.705  1.0
  Cr  Cr9  1  0.098  0.705  0.098  1.0
  Cr  Cr10  1  0.902  0.902  0.295  1.0
  Cr  Cr11  1  0.902  0.295  0.902  1.0
  Cr  Cr12  1  0.705  0.098  0.098  1.0
  Cr  Cr13  1  0.295  0.902  0.902  1.0
  Cr  Cr14  1  0.390  0.110  0.110  1.0
  Cr  Cr15  1  0.610  0.890  0.890  1.0
  Cr  Cr16  1  0.110  0.390  0.390  1.0
  Cr  Cr17  1  0.110  0.390  0.110  1.0
  Cr  Cr18  1  0.610  0.890  0.610  1.0
  Cr  Cr19  1  0.890  0.610  0.610  1.0
  Cr  Cr20  1  0.890  0.610  0.890  1.0
  Cr  Cr21  1  0.390  0.110  0.390  1.0
  Cr  Cr22  1  0.110  0.110  0.390  1.0
  Cr  Cr23  1  0.890  0.890  0.610  1.0
  Cr  Cr24  1  0.390  0.390  0.110  1.0
  Cr  Cr25  1  0.610  0.610  0.890  1.0
  N  N26  1  0.346  0.000  0.000  1.0
  N  N27  1  0.654  0.000  0.000  1.0
  N  N28  1  0.000  0.346  0.654  1.0
  N  N29  1  0.000  0.654  0.346  1.0
  N  N30  1  0.000  0.346  0.000  1.0
  N  N31  1  0.654  0.000  0.346  1.0
  N  N32  1  0.000  0.654  0.000  1.0
  N  N33  1  0.346  0.000  0.654  1.0
  N  N34  1  0.000  0.000  0.346  1.0
  N  N35  1  0.000  0.000  0.654  1.0
  N  N36  1  0.654  0.346  0.000  1.0
  N  N37  1  0.346  0.654  0.000  1.0
  N  N38  1  0.362  0.362  0.362  1.0
  N  N39  1  0.638  0.638  0.638  1.0
  N  N40  1  0.362  0.362  0.914  1.0
  N  N41  1  0.362  0.914  0.362  1.0
  N  N42  1  0.638  0.638  0.086  1.0
  N  N43  1  0.638  0.086  0.638  1.0
  N  N44  1  0.914  0.362  0.362  1.0
  N  N45  1  0.086  0.638  0.638  1.0
  N  N46  1  0.500  0.500  0.500  1.0
  N  N47  1  0.000  0.000  0.000  1.0
[/CIF]
.
The compound described by Ce3Cr10N11 crystallizes in the cubic Fm-3m space group. Ce(1) is bonded in a 9-coordinate geometry to one N(3), four equivalent N(1), and four equivalent N(2) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent N(1) and two equivalent N(2) atoms. In the second Cr site, Cr(1) is bonded to one N(4) and three equivalent N(1) atoms to form a mixture of distorted edge and corner-sharing CrN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Ce(1), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the second N site, N(2) is bonded to three equivalent Ce(1) and three equivalent Cr(2) atoms to form distorted NCe3Cr3 octahedra that share corners with six equivalent N(2)Ce3Cr3 octahedra, edges with three equivalent N(2)Ce3Cr3 octahedra, and  a faceface with one N(3)Ce6 octahedra. The corner-sharing octahedral tilt angles range from 20-32°. In the third N site, N(3) is bonded to six equivalent Ce(1) atoms to form face-sharing NCe6 octahedra. In the fourth N site, N(4) is bonded in a body-centered cubic geometry to eight equivalent Cr(1) atoms. is represented by the CIF card [CIF]
data_Ce3Cr10N11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.990
_cell_length_b   8.990
_cell_length_c   8.990
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   513.730
_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
  Ce  Ce0  1  0.694  0.306  0.306  1.0
  Ce  Ce1  1  0.306  0.694  0.694  1.0
  Ce  Ce2  1  0.306  0.694  0.306  1.0
  Ce  Ce3  1  0.694  0.306  0.694  1.0
  Ce  Ce4  1  0.306  0.306  0.694  1.0
  Ce  Ce5  1  0.694  0.694  0.306  1.0
  Cr  Cr6  1  0.098  0.098  0.098  1.0
  Cr  Cr7  1  0.902  0.902  0.902  1.0
  Cr  Cr8  1  0.098  0.098  0.705  1.0
  Cr  Cr9  1  0.098  0.705  0.098  1.0
  Cr  Cr10  1  0.902  0.902  0.295  1.0
  Cr  Cr11  1  0.902  0.295  0.902  1.0
  Cr  Cr12  1  0.705  0.098  0.098  1.0
  Cr  Cr13  1  0.295  0.902  0.902  1.0
  Cr  Cr14  1  0.390  0.110  0.110  1.0
  Cr  Cr15  1  0.610  0.890  0.890  1.0
  Cr  Cr16  1  0.110  0.390  0.390  1.0
  Cr  Cr17  1  0.110  0.390  0.110  1.0
  Cr  Cr18  1  0.610  0.890  0.610  1.0
  Cr  Cr19  1  0.890  0.610  0.610  1.0
  Cr  Cr20  1  0.890  0.610  0.890  1.0
  Cr  Cr21  1  0.390  0.110  0.390  1.0
  Cr  Cr22  1  0.110  0.110  0.390  1.0
  Cr  Cr23  1  0.890  0.890  0.610  1.0
  Cr  Cr24  1  0.390  0.390  0.110  1.0
  Cr  Cr25  1  0.610  0.610  0.890  1.0
  N  N26  1  0.346  0.000  0.000  1.0
  N  N27  1  0.654  0.000  0.000  1.0
  N  N28  1  0.000  0.346  0.654  1.0
  N  N29  1  0.000  0.654  0.346  1.0
  N  N30  1  0.000  0.346  0.000  1.0
  N  N31  1  0.654  0.000  0.346  1.0
  N  N32  1  0.000  0.654  0.000  1.0
  N  N33  1  0.346  0.000  0.654  1.0
  N  N34  1  0.000  0.000  0.346  1.0
  N  N35  1  0.000  0.000  0.654  1.0
  N  N36  1  0.654  0.346  0.000  1.0
  N  N37  1  0.346  0.654  0.000  1.0
  N  N38  1  0.362  0.362  0.362  1.0
  N  N39  1  0.638  0.638  0.638  1.0
  N  N40  1  0.362  0.362  0.914  1.0
  N  N41  1  0.362  0.914  0.362  1.0
  N  N42  1  0.638  0.638  0.086  1.0
  N  N43  1  0.638  0.086  0.638  1.0
  N  N44  1  0.914  0.362  0.362  1.0
  N  N45  1  0.086  0.638  0.638  1.0
  N  N46  1  0.500  0.500  0.500  1.0
  N  N47  1  0.000  0.000  0.000  1.0
[/CIF]
.