The material structure described by CsLiBeF4 crystallizes in the monoclinic P2_1/c space group. Cs(1) is bonded in a 9-coordinate geometry to two equivalent F(1), two equivalent F(3), two equivalent F(4), and three equivalent F(2) atoms. Li(1) is bonded to one F(1), one F(2), one F(3), and one F(4) atom to form LiF4 tetrahedra that share corners with four equivalent Be(1)F4 tetrahedra. Be(1) is bonded to one F(1), one F(2), one F(3), and one F(4) atom to form BeF4 tetrahedra that share corners with four equivalent Li(1)F4 tetrahedra. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Cs(1), one Li(1), and one Be(1) atom. In the second F site, F(2) is bonded in a linear geometry to three equivalent Cs(1), one Li(1), and one Be(1) atom. In the third F site, F(3) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Li(1), and one Be(1) atom. In the fourth F site, F(4) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Li(1), and one Be(1) atom. is represented by the CIF file [CIF]
data_CsLiBeF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.978
_cell_length_b   5.448
_cell_length_c   10.823
_cell_angle_alpha   60.266
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   459.662
_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
  Cs  Cs0  1  0.498  0.025  0.226  1.0
  Cs  Cs1  1  0.998  0.975  0.274  1.0
  Cs  Cs2  1  0.502  0.975  0.774  1.0
  Cs  Cs3  1  0.002  0.025  0.726  1.0
  Li  Li4  1  0.185  0.662  0.081  1.0
  Li  Li5  1  0.685  0.338  0.419  1.0
  Li  Li6  1  0.815  0.338  0.919  1.0
  Li  Li7  1  0.315  0.662  0.581  1.0
  Be  Be8  1  0.199  0.328  0.915  1.0
  Be  Be9  1  0.699  0.672  0.585  1.0
  Be  Be10  1  0.801  0.672  0.085  1.0
  Be  Be11  1  0.301  0.328  0.415  1.0
  F  F12  1  0.255  0.389  0.765  1.0
  F  F13  1  0.755  0.611  0.735  1.0
  F  F14  1  0.745  0.611  0.235  1.0
  F  F15  1  0.245  0.389  0.265  1.0
  F  F16  1  0.025  0.336  0.913  1.0
  F  F17  1  0.525  0.664  0.587  1.0
  F  F18  1  0.975  0.664  0.087  1.0
  F  F19  1  0.475  0.336  0.413  1.0
  F  F20  1  0.255  0.027  0.031  1.0
  F  F21  1  0.755  0.973  0.469  1.0
  F  F22  1  0.745  0.973  0.969  1.0
  F  F23  1  0.245  0.027  0.531  1.0
  F  F24  1  0.260  0.557  0.950  1.0
  F  F25  1  0.760  0.443  0.550  1.0
  F  F26  1  0.740  0.443  0.050  1.0
  F  F27  1  0.240  0.557  0.450  1.0
[/CIF]
.
The material structure described by CsLiBeF4 crystallizes in the monoclinic P2_1/c space group. Cs(1) is bonded in a 9-coordinate geometry to two equivalent F(1), two equivalent F(3), two equivalent F(4), and three equivalent F(2) atoms. Li(1) is bonded to one F(1), one F(2), one F(3), and one F(4) atom to form LiF4 tetrahedra that share corners with four equivalent Be(1)F4 tetrahedra. Be(1) is bonded to one F(1), one F(2), one F(3), and one F(4) atom to form BeF4 tetrahedra that share corners with four equivalent Li(1)F4 tetrahedra. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Cs(1), one Li(1), and one Be(1) atom. In the second F site, F(2) is bonded in a linear geometry to three equivalent Cs(1), one Li(1), and one Be(1) atom. In the third F site, F(3) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Li(1), and one Be(1) atom. In the fourth F site, F(4) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Li(1), and one Be(1) atom. is represented by the CIF file [CIF]
data_CsLiBeF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.978
_cell_length_b   5.448
_cell_length_c   10.823
_cell_angle_alpha   60.266
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   459.662
_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
  Cs  Cs0  1  0.498  0.025  0.226  1.0
  Cs  Cs1  1  0.998  0.975  0.274  1.0
  Cs  Cs2  1  0.502  0.975  0.774  1.0
  Cs  Cs3  1  0.002  0.025  0.726  1.0
  Li  Li4  1  0.185  0.662  0.081  1.0
  Li  Li5  1  0.685  0.338  0.419  1.0
  Li  Li6  1  0.815  0.338  0.919  1.0
  Li  Li7  1  0.315  0.662  0.581  1.0
  Be  Be8  1  0.199  0.328  0.915  1.0
  Be  Be9  1  0.699  0.672  0.585  1.0
  Be  Be10  1  0.801  0.672  0.085  1.0
  Be  Be11  1  0.301  0.328  0.415  1.0
  F  F12  1  0.255  0.389  0.765  1.0
  F  F13  1  0.755  0.611  0.735  1.0
  F  F14  1  0.745  0.611  0.235  1.0
  F  F15  1  0.245  0.389  0.265  1.0
  F  F16  1  0.025  0.336  0.913  1.0
  F  F17  1  0.525  0.664  0.587  1.0
  F  F18  1  0.975  0.664  0.087  1.0
  F  F19  1  0.475  0.336  0.413  1.0
  F  F20  1  0.255  0.027  0.031  1.0
  F  F21  1  0.755  0.973  0.469  1.0
  F  F22  1  0.745  0.973  0.969  1.0
  F  F23  1  0.245  0.027  0.531  1.0
  F  F24  1  0.260  0.557  0.950  1.0
  F  F25  1  0.760  0.443  0.550  1.0
  F  F26  1  0.740  0.443  0.050  1.0
  F  F27  1  0.240  0.557  0.450  1.0
[/CIF]
.