data_Be2CuP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.26
_cell_length_b   4.26
_cell_length_c   4.26
_cell_angle_alpha   131.91
_cell_angle_beta   131.91
_cell_angle_gamma   70.37
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2CuP
_chemical_formula_sum   'Be2 Cu1 P1'
_cell_volume   41.85
_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  0.73  0.0  0.74  1.0
  Be  Be1  1  0.0  0.73  0.74  1.0
  Cu  Cu2  1  0.0  0.0  0.48  1.0
  P  P3  1  0.0  0.0  0.0  1.0

data_Be2CuP
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   4.26
_cell_angle_alpha   90.0
_cell_angle_beta   125.18
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Be2CuP
_chemical_formula_sum   'Be4 Cu2 P2'
_cell_volume   83.7
_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  4  0.13  0.13  0.99  1.0
  Cu  Cu1  2  0.02  0.5  0.52  1.0
  P  P2  2  0.0  0.0  0.0  1.0

Be Be Cu P
Be2CuP crystallizes in the monoclinic Cm space group. Be(1) is bonded in a single-bond geometry to two equivalent Cu(1) and one P(1) atom. There is one shorter (2.05 Å) and one longer (2.52 Å) Be(1)-Cu(1) bond length. The Be(1)-P(1) bond length is 0.91 Å. Cu(1) is bonded in a 5-coordinate geometry to four equivalent Be(1) and one P(1) atom. The Cu(1)-P(1) bond length is 2.04 Å. P(1) is bonded in an L-shaped geometry to two equivalent Be(1) and one Cu(1) atom.