data_BeZnCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.94
_cell_length_b   3.94
_cell_length_c   3.94
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeZnCo2
_chemical_formula_sum   'Be1 Zn1 Co2'
_cell_volume   43.2
_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
  Be  Be0  1  0.0  0.0  0.0  1.0
  Zn  Zn3  1  0.18  0.18  0.18  1.0
  Co  Co1  1  0.78  0.78  0.78  1.0
  Co  Co2  1  0.39  0.39  0.39  1.0

data_BeZnCo2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   3.94
_cell_length_b   3.94
_cell_length_c   9.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   BeZnCo2
_chemical_formula_sum   'Be3 Zn3 Co6'
_cell_volume   129.6
_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
  Be  Be0  3  0.0  0.0  0.0  1.0
  Zn  Zn1  3  0.0  0.0  0.82  1.0
  Co  Co2  3  0.0  0.0  0.22  1.0
  Co  Co3  3  0.0  0.0  0.61  1.0

Be Zn Co Co
BeCo2Zn crystallizes in the trigonal R3m space group. Be(1) is bonded in a 2-coordinate geometry to three equivalent Co(2), four equivalent Co(1), and one Zn(1) atom. All Be(1)-Co(2) bond lengths are 2.34 Å. There is one shorter (2.07 Å) and three longer (2.54 Å) Be(1)-Co(1) bond lengths. The Be(1)-Zn(1) bond length is 1.71 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 10-coordinate geometry to four equivalent Be(1), three equivalent Co(2), and three equivalent Zn(1) atoms. All Co(1)-Co(2) bond lengths are 2.34 Å. All Co(1)-Zn(1) bond lengths are 2.34 Å. In the second Co site, Co(2) is bonded in a 10-coordinate geometry to three equivalent Be(1), three equivalent Co(1), and four equivalent Zn(1) atoms. There is one shorter (2.07 Å) and three longer (2.54 Å) Co(2)-Zn(1) bond lengths. Zn(1) is bonded in a 2-coordinate geometry to one Be(1), three equivalent Co(1), and four equivalent Co(2) atoms.