The structure described by CsMg14CeO16 is Caswellsilverite-derived structured and crystallizes in the orthorhombic Pmmm space group. Cs(1) is bonded to two O(2,2); two equivalent O(5); and two equivalent O(8) atoms to form CsO6 octahedra that share corners with two equivalent Cs(1)O6 octahedra, corners with two equivalent Mg(2)O6 octahedra, corners with two equivalent Ce(1)O6 octahedra, edges with four equivalent Mg(3)O6 octahedra, edges with four equivalent Mg(6)O6 octahedra, and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. There are eight inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; corners with two equivalent Ce(1)O6 octahedra; edges with four equivalent Mg(4)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. In the second Mg site, Mg(2) is bonded to two O(2,2); two equivalent O(7); and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Cs(1)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Mg(2)O6 octahedra, edges with four equivalent Mg(4)O6 octahedra, edges with four equivalent Mg(6)O6 octahedra, and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. In the third Mg site, Mg(3) is bonded to one O(4), one O(5), two equivalent O(3), and two equivalent O(8) atoms to form MgO6 octahedra that share corners with two equivalent Mg(4)O6 octahedra; corners with four equivalent Mg(3)O6 octahedra; edges with two equivalent Cs(1)O6 octahedra; edges with two Mg(5,5)O6 octahedra; edges with two equivalent Mg(6)O6 octahedra; edges with two equivalent Ce(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the fourth Mg site, Mg(4) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(9) atoms to form a mixture of edge and corner-sharing MgO6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the fifth Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ce(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the sixth Mg site, Mg(6) is bonded to one O(5), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(5)O6 octahedra, corners with four equivalent Mg(6)O6 octahedra, edges with two equivalent Cs(1)O6 octahedra, edges with two equivalent Mg(2)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, edges with two equivalent Mg(4)O6 octahedra, and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the seventh Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ce(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the eighth Mg site, Mg(7) is bonded to one O(1), one O(2), one O(8), one O(9), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Mg(7)O6 octahedra,  an edgeedge with one Cs(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Ce(1)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, edges with two equivalent Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mg(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-12°. Ce(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(8) atoms to form CeO6 octahedra that share corners with two equivalent Cs(1)O6 octahedra; corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Ce(1)O6 octahedra; edges with four equivalent Mg(3)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), two equivalent Mg(5), two equivalent Mg(7), and one Ce(1) atom to form OCeMg5 octahedra that share corners with two equivalent O(2)CsMg5 octahedra, corners with four equivalent O(1)CeMg5 octahedra, edges with two equivalent O(4)Ce2Mg4 octahedra, edges with two equivalent O(8)CsCeMg4 octahedra, edges with two equivalent O(6)Mg6 octahedra, edges with two equivalent O(9)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second O site, O(2) is bonded to one Cs(1), one Mg(2), two equivalent Mg(6), and two equivalent Mg(7) atoms to form distorted OCsMg5 octahedra that share corners with two equivalent O(1)CeMg5 octahedra; corners with four O(2,2)CsMg5 octahedra; edges with two equivalent O(5)Cs2Mg4 octahedra; edges with two equivalent O(8)CsCeMg4 octahedra; edges with two equivalent O(7)Mg6 octahedra; edges with two equivalent O(9)Mg6 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the third O site, O(2) is bonded to one Cs(1), one Mg(2), two equivalent Mg(6), and two equivalent Mg(7) atoms to form distorted OCsMg5 octahedra that share corners with two equivalent O(1)CeMg5 octahedra; corners with four O(2,2)CsMg5 octahedra; edges with two equivalent O(5)Cs2Mg4 octahedra; edges with two equivalent O(8)CsCeMg4 octahedra; edges with two equivalent O(7)Mg6 octahedra; edges with two equivalent O(9)Mg6 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the fourth O site, O(3) is bonded to one Mg(3), one Mg(4), one Mg(5), one Mg(6), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with six equivalent O(3)Mg6 octahedra,  an edgeedge with one O(4)Ce2Mg4 octahedra,  an edgeedge with one O(5)Cs2Mg4 octahedra,  an edgeedge with one O(6)Mg6 octahedra,  an edgeedge with one O(7)Mg6 octahedra, edges with two equivalent O(1)CeMg5 octahedra, edges with two equivalent O(8)CsCeMg4 octahedra, edges with two equivalent O(2)CsMg5 octahedra, and edges with two equivalent O(9)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 1-8°. In the fifth O site, O(4) is bonded to two equivalent Mg(3); two Mg(5,5); and two equivalent Ce(1) atoms to form OCe2Mg4 octahedra that share corners with two equivalent O(4)Ce2Mg4 octahedra, corners with two equivalent O(5)Cs2Mg4 octahedra, corners with two equivalent O(6)Mg6 octahedra, edges with four equivalent O(1)CeMg5 octahedra, edges with four equivalent O(8)CsCeMg4 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the sixth O site, O(5) is bonded to two equivalent Cs(1), two equivalent Mg(3), and two equivalent Mg(6) atoms to form OCs2Mg4 octahedra that share corners with two equivalent O(4)Ce2Mg4 octahedra; corners with two equivalent O(5)Cs2Mg4 octahedra; corners with two equivalent O(7)Mg6 octahedra; edges with four equivalent O(8)CsCeMg4 octahedra; edges with four O(2,2)CsMg5 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the seventh O site, O(6) is bonded to two equivalent Mg(1); two equivalent Mg(4); and two Mg(5,5) atoms to form OMg6 octahedra that share corners with two equivalent O(4)Ce2Mg4 octahedra, corners with two equivalent O(6)Mg6 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(1)CeMg5 octahedra, edges with four equivalent O(3)Mg6 octahedra, and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the eighth O site, O(7) is bonded to two equivalent Mg(2), two equivalent Mg(4), and two equivalent Mg(6) atoms to form OMg6 octahedra that share corners with two equivalent O(5)Cs2Mg4 octahedra; corners with two equivalent O(6)Mg6 octahedra; corners with two equivalent O(7)Mg6 octahedra; edges with four O(2,2)CsMg5 octahedra; edges with four equivalent O(3)Mg6 octahedra; and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the ninth O site, O(8) is bonded to one Cs(1), two equivalent Mg(3), two equivalent Mg(7), and one Ce(1) atom to form OCsCeMg4 octahedra that share corners with two equivalent O(9)Mg6 octahedra; corners with four equivalent O(8)CsCeMg4 octahedra; edges with two equivalent O(4)Ce2Mg4 octahedra; edges with two equivalent O(1)CeMg5 octahedra; edges with two equivalent O(5)Cs2Mg4 octahedra; edges with two O(2,2)CsMg5 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the tenth O site, O(9) is bonded to one Mg(1), one Mg(2), two equivalent Mg(4), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with two equivalent O(8)CsCeMg4 octahedra; corners with four equivalent O(9)Mg6 octahedra; edges with two equivalent O(1)CeMg5 octahedra; edges with two O(2,2)CsMg5 octahedra; edges with two equivalent O(6)Mg6 octahedra; edges with two equivalent O(7)Mg6 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. is represented by the CIF file [CIF]
data_CsCeMg14O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.911
_cell_length_b   9.029
_cell_length_c   4.638
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   373.146
_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
  Cs  Cs0  1  0.000  0.500  0.000  1.0
  Ce  Ce1  1  0.000  0.000  0.000  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Mg  Mg3  1  0.500  0.500  0.000  1.0
  Mg  Mg4  1  0.000  0.262  0.500  1.0
  Mg  Mg5  1  0.000  0.738  0.500  1.0
  Mg  Mg6  1  0.500  0.253  0.500  1.0
  Mg  Mg7  1  0.500  0.747  0.500  1.0
  Mg  Mg8  1  0.268  0.000  0.500  1.0
  Mg  Mg9  1  0.263  0.500  0.500  1.0
  Mg  Mg10  1  0.732  0.000  0.500  1.0
  Mg  Mg11  1  0.737  0.500  0.500  1.0
  Mg  Mg12  1  0.269  0.257  0.000  1.0
  Mg  Mg13  1  0.269  0.743  0.000  1.0
  Mg  Mg14  1  0.731  0.257  0.000  1.0
  Mg  Mg15  1  0.731  0.743  0.000  1.0
  O  O16  1  0.269  0.000  0.000  1.0
  O  O17  1  0.288  0.500  0.000  1.0
  O  O18  1  0.731  0.000  0.000  1.0
  O  O19  1  0.712  0.500  0.000  1.0
  O  O20  1  0.251  0.250  0.500  1.0
  O  O21  1  0.251  0.750  0.500  1.0
  O  O22  1  0.749  0.250  0.500  1.0
  O  O23  1  0.749  0.750  0.500  1.0
  O  O24  1  0.000  0.000  0.500  1.0
  O  O25  1  0.000  0.500  0.500  1.0
  O  O26  1  0.500  0.000  0.500  1.0
  O  O27  1  0.500  0.500  0.500  1.0
  O  O28  1  0.000  0.229  0.000  1.0
  O  O29  1  0.000  0.771  0.000  1.0
  O  O30  1  0.500  0.242  0.000  1.0
  O  O31  1  0.500  0.758  0.000  1.0
[/CIF]
.
The structure described by CsMg14CeO16 is Caswellsilverite-derived structured and crystallizes in the orthorhombic Pmmm space group. Cs(1) is bonded to two O(2,2); two equivalent O(5); and two equivalent O(8) atoms to form CsO6 octahedra that share corners with two equivalent Cs(1)O6 octahedra, corners with two equivalent Mg(2)O6 octahedra, corners with two equivalent Ce(1)O6 octahedra, edges with four equivalent Mg(3)O6 octahedra, edges with four equivalent Mg(6)O6 octahedra, and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. There are eight inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; corners with two equivalent Ce(1)O6 octahedra; edges with four equivalent Mg(4)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. In the second Mg site, Mg(2) is bonded to two O(2,2); two equivalent O(7); and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Cs(1)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Mg(2)O6 octahedra, edges with four equivalent Mg(4)O6 octahedra, edges with four equivalent Mg(6)O6 octahedra, and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. In the third Mg site, Mg(3) is bonded to one O(4), one O(5), two equivalent O(3), and two equivalent O(8) atoms to form MgO6 octahedra that share corners with two equivalent Mg(4)O6 octahedra; corners with four equivalent Mg(3)O6 octahedra; edges with two equivalent Cs(1)O6 octahedra; edges with two Mg(5,5)O6 octahedra; edges with two equivalent Mg(6)O6 octahedra; edges with two equivalent Ce(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the fourth Mg site, Mg(4) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(9) atoms to form a mixture of edge and corner-sharing MgO6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the fifth Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ce(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the sixth Mg site, Mg(6) is bonded to one O(5), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(5)O6 octahedra, corners with four equivalent Mg(6)O6 octahedra, edges with two equivalent Cs(1)O6 octahedra, edges with two equivalent Mg(2)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, edges with two equivalent Mg(4)O6 octahedra, and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the seventh Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ce(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the eighth Mg site, Mg(7) is bonded to one O(1), one O(2), one O(8), one O(9), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Mg(7)O6 octahedra,  an edgeedge with one Cs(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Ce(1)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, edges with two equivalent Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mg(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-12°. Ce(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(8) atoms to form CeO6 octahedra that share corners with two equivalent Cs(1)O6 octahedra; corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Ce(1)O6 octahedra; edges with four equivalent Mg(3)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), two equivalent Mg(5), two equivalent Mg(7), and one Ce(1) atom to form OCeMg5 octahedra that share corners with two equivalent O(2)CsMg5 octahedra, corners with four equivalent O(1)CeMg5 octahedra, edges with two equivalent O(4)Ce2Mg4 octahedra, edges with two equivalent O(8)CsCeMg4 octahedra, edges with two equivalent O(6)Mg6 octahedra, edges with two equivalent O(9)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second O site, O(2) is bonded to one Cs(1), one Mg(2), two equivalent Mg(6), and two equivalent Mg(7) atoms to form distorted OCsMg5 octahedra that share corners with two equivalent O(1)CeMg5 octahedra; corners with four O(2,2)CsMg5 octahedra; edges with two equivalent O(5)Cs2Mg4 octahedra; edges with two equivalent O(8)CsCeMg4 octahedra; edges with two equivalent O(7)Mg6 octahedra; edges with two equivalent O(9)Mg6 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the third O site, O(2) is bonded to one Cs(1), one Mg(2), two equivalent Mg(6), and two equivalent Mg(7) atoms to form distorted OCsMg5 octahedra that share corners with two equivalent O(1)CeMg5 octahedra; corners with four O(2,2)CsMg5 octahedra; edges with two equivalent O(5)Cs2Mg4 octahedra; edges with two equivalent O(8)CsCeMg4 octahedra; edges with two equivalent O(7)Mg6 octahedra; edges with two equivalent O(9)Mg6 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-11°. In the fourth O site, O(3) is bonded to one Mg(3), one Mg(4), one Mg(5), one Mg(6), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with six equivalent O(3)Mg6 octahedra,  an edgeedge with one O(4)Ce2Mg4 octahedra,  an edgeedge with one O(5)Cs2Mg4 octahedra,  an edgeedge with one O(6)Mg6 octahedra,  an edgeedge with one O(7)Mg6 octahedra, edges with two equivalent O(1)CeMg5 octahedra, edges with two equivalent O(8)CsCeMg4 octahedra, edges with two equivalent O(2)CsMg5 octahedra, and edges with two equivalent O(9)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 1-8°. In the fifth O site, O(4) is bonded to two equivalent Mg(3); two Mg(5,5); and two equivalent Ce(1) atoms to form OCe2Mg4 octahedra that share corners with two equivalent O(4)Ce2Mg4 octahedra, corners with two equivalent O(5)Cs2Mg4 octahedra, corners with two equivalent O(6)Mg6 octahedra, edges with four equivalent O(1)CeMg5 octahedra, edges with four equivalent O(8)CsCeMg4 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the sixth O site, O(5) is bonded to two equivalent Cs(1), two equivalent Mg(3), and two equivalent Mg(6) atoms to form OCs2Mg4 octahedra that share corners with two equivalent O(4)Ce2Mg4 octahedra; corners with two equivalent O(5)Cs2Mg4 octahedra; corners with two equivalent O(7)Mg6 octahedra; edges with four equivalent O(8)CsCeMg4 octahedra; edges with four O(2,2)CsMg5 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the seventh O site, O(6) is bonded to two equivalent Mg(1); two equivalent Mg(4); and two Mg(5,5) atoms to form OMg6 octahedra that share corners with two equivalent O(4)Ce2Mg4 octahedra, corners with two equivalent O(6)Mg6 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(1)CeMg5 octahedra, edges with four equivalent O(3)Mg6 octahedra, and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the eighth O site, O(7) is bonded to two equivalent Mg(2), two equivalent Mg(4), and two equivalent Mg(6) atoms to form OMg6 octahedra that share corners with two equivalent O(5)Cs2Mg4 octahedra; corners with two equivalent O(6)Mg6 octahedra; corners with two equivalent O(7)Mg6 octahedra; edges with four O(2,2)CsMg5 octahedra; edges with four equivalent O(3)Mg6 octahedra; and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the ninth O site, O(8) is bonded to one Cs(1), two equivalent Mg(3), two equivalent Mg(7), and one Ce(1) atom to form OCsCeMg4 octahedra that share corners with two equivalent O(9)Mg6 octahedra; corners with four equivalent O(8)CsCeMg4 octahedra; edges with two equivalent O(4)Ce2Mg4 octahedra; edges with two equivalent O(1)CeMg5 octahedra; edges with two equivalent O(5)Cs2Mg4 octahedra; edges with two O(2,2)CsMg5 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the tenth O site, O(9) is bonded to one Mg(1), one Mg(2), two equivalent Mg(4), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with two equivalent O(8)CsCeMg4 octahedra; corners with four equivalent O(9)Mg6 octahedra; edges with two equivalent O(1)CeMg5 octahedra; edges with two O(2,2)CsMg5 octahedra; edges with two equivalent O(6)Mg6 octahedra; edges with two equivalent O(7)Mg6 octahedra; and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. is represented by the CIF file [CIF]
data_CsCeMg14O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.911
_cell_length_b   9.029
_cell_length_c   4.638
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   373.146
_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
  Cs  Cs0  1  0.000  0.500  0.000  1.0
  Ce  Ce1  1  0.000  0.000  0.000  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Mg  Mg3  1  0.500  0.500  0.000  1.0
  Mg  Mg4  1  0.000  0.262  0.500  1.0
  Mg  Mg5  1  0.000  0.738  0.500  1.0
  Mg  Mg6  1  0.500  0.253  0.500  1.0
  Mg  Mg7  1  0.500  0.747  0.500  1.0
  Mg  Mg8  1  0.268  0.000  0.500  1.0
  Mg  Mg9  1  0.263  0.500  0.500  1.0
  Mg  Mg10  1  0.732  0.000  0.500  1.0
  Mg  Mg11  1  0.737  0.500  0.500  1.0
  Mg  Mg12  1  0.269  0.257  0.000  1.0
  Mg  Mg13  1  0.269  0.743  0.000  1.0
  Mg  Mg14  1  0.731  0.257  0.000  1.0
  Mg  Mg15  1  0.731  0.743  0.000  1.0
  O  O16  1  0.269  0.000  0.000  1.0
  O  O17  1  0.288  0.500  0.000  1.0
  O  O18  1  0.731  0.000  0.000  1.0
  O  O19  1  0.712  0.500  0.000  1.0
  O  O20  1  0.251  0.250  0.500  1.0
  O  O21  1  0.251  0.750  0.500  1.0
  O  O22  1  0.749  0.250  0.500  1.0
  O  O23  1  0.749  0.750  0.500  1.0
  O  O24  1  0.000  0.000  0.500  1.0
  O  O25  1  0.000  0.500  0.500  1.0
  O  O26  1  0.500  0.000  0.500  1.0
  O  O27  1  0.500  0.500  0.500  1.0
  O  O28  1  0.000  0.229  0.000  1.0
  O  O29  1  0.000  0.771  0.000  1.0
  O  O30  1  0.500  0.242  0.000  1.0
  O  O31  1  0.500  0.758  0.000  1.0
[/CIF]
.