The material described by BaMgCoF7 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded to one F(1), one F(2), two equivalent F(3), two equivalent F(4), two equivalent F(5), two equivalent F(6), and two equivalent F(7) atoms to form distorted BaF12 cuboctahedra that share corners with two equivalent Ba(1)F12 cuboctahedra, corners with three equivalent Mg(1)F6 octahedra, corners with three equivalent Co(1)F6 octahedra, edges with four equivalent Ba(1)F12 cuboctahedra, edges with two equivalent Mg(1)F6 octahedra, edges with two equivalent Co(1)F6 octahedra,  a faceface with one Mg(1)F6 octahedra, and  a faceface with one Co(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 43-51°. Mg(1) is bonded to one F(1), one F(2), one F(3), one F(5), one F(6), and one F(7) atom to form MgF6 octahedra that share corners with three equivalent Ba(1)F12 cuboctahedra, corners with three equivalent Co(1)F6 octahedra, edges with two equivalent Ba(1)F12 cuboctahedra,  an edgeedge with one Co(1)F6 octahedra, and  a faceface with one Ba(1)F12 cuboctahedra. The corner-sharing octahedral tilt angles range from 47-53°. Co(1) is bonded to one F(1), one F(2), one F(3), one F(4), one F(5), and one F(6) atom to form CoF6 octahedra that share corners with three equivalent Ba(1)F12 cuboctahedra, corners with three equivalent Mg(1)F6 octahedra, edges with two equivalent Ba(1)F12 cuboctahedra,  an edgeedge with one Mg(1)F6 octahedra, and  a faceface with one Ba(1)F12 cuboctahedra. The corner-sharing octahedral tilt angles range from 47-53°. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one Mg(1), and one Co(1) atom. In the second F site, F(2) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one Mg(1), and one Co(1) atom. In the third F site, F(3) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Mg(1), and one Co(1) atom. In the fourth F site, F(4) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Co(1) atom. In the fifth F site, F(5) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Mg(1), and one Co(1) atom. In the sixth F site, F(6) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Mg(1), and one Co(1) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1) and one Mg(1) atom. is represented by the CIF file [CIF]
data_BaMgCoF7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.929
_cell_length_b   5.661
_cell_length_c   9.602
_cell_angle_alpha   86.805
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   538.908
_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
  Ba  Ba0  1  0.316  0.734  0.500  1.0
  Ba  Ba1  1  0.816  0.266  1.000  1.0
  Ba  Ba2  1  0.684  0.266  0.500  1.0
  Ba  Ba3  1  0.184  0.734  0.000  1.0
  Mg  Mg4  1  0.396  0.304  0.810  1.0
  Mg  Mg5  1  0.896  0.696  0.690  1.0
  Mg  Mg6  1  0.104  0.304  0.310  1.0
  Mg  Mg7  1  0.604  0.696  0.190  1.0
  Co  Co8  1  0.612  0.806  0.811  1.0
  Co  Co9  1  0.388  0.194  0.189  1.0
  Co  Co10  1  0.888  0.806  0.311  1.0
  Co  Co11  1  0.112  0.194  0.689  1.0
  F  F12  1  0.447  0.887  0.126  1.0
  F  F13  1  0.049  0.628  0.369  1.0
  F  F14  1  0.714  0.527  0.749  1.0
  F  F15  1  0.286  0.473  0.251  1.0
  F  F16  1  0.455  0.114  0.364  1.0
  F  F17  1  0.812  0.742  0.494  1.0
  F  F18  1  0.781  0.974  0.751  1.0
  F  F19  1  0.955  0.886  0.136  1.0
  F  F20  1  0.451  0.628  0.869  1.0
  F  F21  1  0.214  0.473  0.751  1.0
  F  F22  1  0.053  0.887  0.626  1.0
  F  F23  1  0.553  0.113  0.874  1.0
  F  F24  1  0.281  0.026  0.749  1.0
  F  F25  1  0.959  0.617  0.876  1.0
  F  F26  1  0.545  0.886  0.636  1.0
  F  F27  1  0.045  0.114  0.864  1.0
  F  F28  1  0.219  0.026  0.249  1.0
  F  F29  1  0.947  0.113  0.374  1.0
  F  F30  1  0.459  0.383  0.624  1.0
  F  F31  1  0.951  0.372  0.631  1.0
  F  F32  1  0.041  0.383  0.124  1.0
  F  F33  1  0.719  0.974  0.251  1.0
  F  F34  1  0.541  0.617  0.376  1.0
  F  F35  1  0.312  0.258  0.006  1.0
  F  F36  1  0.188  0.258  0.506  1.0
  F  F37  1  0.688  0.742  0.994  1.0
  F  F38  1  0.549  0.372  0.131  1.0
  F  F39  1  0.786  0.527  0.249  1.0
[/CIF]
.
The material described by BaMgCoF7 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded to one F(1), one F(2), two equivalent F(3), two equivalent F(4), two equivalent F(5), two equivalent F(6), and two equivalent F(7) atoms to form distorted BaF12 cuboctahedra that share corners with two equivalent Ba(1)F12 cuboctahedra, corners with three equivalent Mg(1)F6 octahedra, corners with three equivalent Co(1)F6 octahedra, edges with four equivalent Ba(1)F12 cuboctahedra, edges with two equivalent Mg(1)F6 octahedra, edges with two equivalent Co(1)F6 octahedra,  a faceface with one Mg(1)F6 octahedra, and  a faceface with one Co(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 43-51°. Mg(1) is bonded to one F(1), one F(2), one F(3), one F(5), one F(6), and one F(7) atom to form MgF6 octahedra that share corners with three equivalent Ba(1)F12 cuboctahedra, corners with three equivalent Co(1)F6 octahedra, edges with two equivalent Ba(1)F12 cuboctahedra,  an edgeedge with one Co(1)F6 octahedra, and  a faceface with one Ba(1)F12 cuboctahedra. The corner-sharing octahedral tilt angles range from 47-53°. Co(1) is bonded to one F(1), one F(2), one F(3), one F(4), one F(5), and one F(6) atom to form CoF6 octahedra that share corners with three equivalent Ba(1)F12 cuboctahedra, corners with three equivalent Mg(1)F6 octahedra, edges with two equivalent Ba(1)F12 cuboctahedra,  an edgeedge with one Mg(1)F6 octahedra, and  a faceface with one Ba(1)F12 cuboctahedra. The corner-sharing octahedral tilt angles range from 47-53°. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one Mg(1), and one Co(1) atom. In the second F site, F(2) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one Mg(1), and one Co(1) atom. In the third F site, F(3) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Mg(1), and one Co(1) atom. In the fourth F site, F(4) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Co(1) atom. In the fifth F site, F(5) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Mg(1), and one Co(1) atom. In the sixth F site, F(6) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Mg(1), and one Co(1) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1) and one Mg(1) atom. is represented by the CIF file [CIF]
data_BaMgCoF7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.929
_cell_length_b   5.661
_cell_length_c   9.602
_cell_angle_alpha   86.805
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   538.908
_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
  Ba  Ba0  1  0.316  0.734  0.500  1.0
  Ba  Ba1  1  0.816  0.266  1.000  1.0
  Ba  Ba2  1  0.684  0.266  0.500  1.0
  Ba  Ba3  1  0.184  0.734  0.000  1.0
  Mg  Mg4  1  0.396  0.304  0.810  1.0
  Mg  Mg5  1  0.896  0.696  0.690  1.0
  Mg  Mg6  1  0.104  0.304  0.310  1.0
  Mg  Mg7  1  0.604  0.696  0.190  1.0
  Co  Co8  1  0.612  0.806  0.811  1.0
  Co  Co9  1  0.388  0.194  0.189  1.0
  Co  Co10  1  0.888  0.806  0.311  1.0
  Co  Co11  1  0.112  0.194  0.689  1.0
  F  F12  1  0.447  0.887  0.126  1.0
  F  F13  1  0.049  0.628  0.369  1.0
  F  F14  1  0.714  0.527  0.749  1.0
  F  F15  1  0.286  0.473  0.251  1.0
  F  F16  1  0.455  0.114  0.364  1.0
  F  F17  1  0.812  0.742  0.494  1.0
  F  F18  1  0.781  0.974  0.751  1.0
  F  F19  1  0.955  0.886  0.136  1.0
  F  F20  1  0.451  0.628  0.869  1.0
  F  F21  1  0.214  0.473  0.751  1.0
  F  F22  1  0.053  0.887  0.626  1.0
  F  F23  1  0.553  0.113  0.874  1.0
  F  F24  1  0.281  0.026  0.749  1.0
  F  F25  1  0.959  0.617  0.876  1.0
  F  F26  1  0.545  0.886  0.636  1.0
  F  F27  1  0.045  0.114  0.864  1.0
  F  F28  1  0.219  0.026  0.249  1.0
  F  F29  1  0.947  0.113  0.374  1.0
  F  F30  1  0.459  0.383  0.624  1.0
  F  F31  1  0.951  0.372  0.631  1.0
  F  F32  1  0.041  0.383  0.124  1.0
  F  F33  1  0.719  0.974  0.251  1.0
  F  F34  1  0.541  0.617  0.376  1.0
  F  F35  1  0.312  0.258  0.006  1.0
  F  F36  1  0.188  0.258  0.506  1.0
  F  F37  1  0.688  0.742  0.994  1.0
  F  F38  1  0.549  0.372  0.131  1.0
  F  F39  1  0.786  0.527  0.249  1.0
[/CIF]
.