data_BeCd2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.22
_cell_length_b   9.22
_cell_length_c   9.22
_cell_angle_alpha   17.95
_cell_angle_beta   17.95
_cell_angle_gamma   17.95
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCd2Tc
_chemical_formula_sum   'Be1 Cd2 Tc1'
_cell_volume   64.99
_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
  Cd  Cd1  1  0.0  0.0  0.96  1.0
  Cd  Cd2  1  0.0  0.0  0.24  1.0
  Tc  Tc3  1  0.0  0.0  0.6  1.0

data_BeCd2Tc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.98
_cell_length_b   2.88
_cell_length_c   9.22
_cell_angle_alpha   90.0
_cell_angle_beta   100.38
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BeCd2Tc
_chemical_formula_sum   'Be2 Cd4 Tc2'
_cell_volume   129.98
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.0  1.0
  Cd  Cd1  2  0.0  0.0  0.04  1.0
  Cd  Cd2  2  0.0  0.0  0.76  1.0
  Tc  Tc3  2  -0.0  0.0  0.4  1.0

Be Cd Cd Tc
BeTcCd2 crystallizes in the monoclinic Cm space group. Be(1) is bonded in a single-bond geometry to one Cd(1) and one Cd(2) atom. The Be(1)-Cd(1) bond length is 0.36 Å. The Be(1)-Cd(2) bond length is 2.23 Å. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to six Tc(1,1); one Cd(1); and one Cd(2) atom to form a mixture of corner and edge-sharing TcCd2Tc6 hexagonal bipyramids. All Tc(1)-Tc(1,1) bond lengths are 2.88 Å. The Tc(1)-Cd(1) bond length is 3.32 Å. The Tc(1)-Cd(2) bond length is 3.32 Å. In the second Tc site, Tc(1) is bonded to six Tc(1,1); one Cd(1); and one Cd(2) atom to form a mixture of corner and edge-sharing TcCd2Tc6 hexagonal bipyramids. Both Tc(1)-Tc(1) bond lengths are 2.88 Å. The Tc(1)-Cd(1) bond length is 3.32 Å. The Tc(1)-Cd(2) bond length is 3.32 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a single-bond geometry to one Be(1) and one Tc(1) atom. In the second Cd site, Cd(2) is bonded in a distorted single-bond geometry to one Be(1) and one Tc(1) atom.