data_SrLiBeNb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.85
_cell_length_b   4.85
_cell_length_c   4.85
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrLiBeNb
_chemical_formula_sum   'Sr1 Li1 Be1 Nb1'
_cell_volume   80.56
_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
  Sr  Sr3  1  0.14  0.14  0.14  1.0
  Li  Li1  1  0.0  0.0  0.0  1.0
  Be  Be0  1  0.71  0.71  0.71  1.0
  Nb  Nb2  1  0.43  0.43  0.43  1.0

data_SrLiBeNb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.85
_cell_length_b   4.85
_cell_length_c   11.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   SrLiBeNb
_chemical_formula_sum   'Sr3 Li3 Be3 Nb3'
_cell_volume   241.69
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Sr  Sr0  3  0.0  0.0  0.86  1.0
  Li  Li1  3  0.0  0.0  0.0  1.0
  Be  Be2  3  0.0  0.0  0.29  1.0
  Nb  Nb3  3  0.0  0.0  0.57  1.0

Sr Li Be Nb
LiSrBeNb crystallizes in the trigonal R3m space group. Li(1) is bonded in a distorted single-bond geometry to one Sr(1), three equivalent Be(1), and three equivalent Nb(1) atoms. The Li(1)-Sr(1) bond length is 1.69 Å. All Li(1)-Be(1) bond lengths are 2.85 Å. All Li(1)-Nb(1) bond lengths are 3.02 Å. Sr(1) is bonded in a distorted single-bond geometry to one Li(1), three equivalent Be(1), and four equivalent Nb(1) atoms. All Sr(1)-Be(1) bond lengths are 3.02 Å. There are three shorter (2.85 Å) and one longer (3.40 Å) Sr(1)-Nb(1) bond length. Be(1) is bonded in a 9-coordinate geometry to three equivalent Li(1), three equivalent Sr(1), and three equivalent Nb(1) atoms. All Be(1)-Nb(1) bond lengths are 2.85 Å. Nb(1) is bonded in a 10-coordinate geometry to three equivalent Li(1), four equivalent Sr(1), and three equivalent Be(1) atoms.