data_Nb3MoCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   4.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb3MoCl
_chemical_formula_sum   'Nb3 Mo1 Cl1'
_cell_volume   118.67
_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
  Nb  Nb1  1  0.46  0.0  0.46  1.0
  Nb  Nb2  1  0.46  0.46  0.0  1.0
  Nb  Nb3  1  0.0  0.46  0.46  1.0
  Mo  Mo0  1  0.46  0.46  0.46  1.0
  Cl  Cl4  1  0.0  0.0  0.0  1.0

data_Nb3MoCl
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.95
_cell_length_b   6.95
_cell_length_c   8.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Nb3MoCl
_chemical_formula_sum   'Nb9 Mo3 Cl3'
_cell_volume   356.02
_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
  Nb  Nb0  9  0.03  0.51  0.97  1.0
  Mo  Mo1  3  0.0  0.0  0.46  1.0
  Cl  Cl2  3  0.0  0.0  0.0  1.0

Nb Nb Nb Mo Cl
Nb3MoCl is (Cubic) Perovskite structured and crystallizes in the trigonal R3m space group. Nb(1) is bonded in a distorted T-shaped geometry to two equivalent Mo(1) and one Cl(1) atom. There is one shorter (2.25 Å) and one longer (2.67 Å) Nb(1)-Mo(1) bond length. The Nb(1)-Cl(1) bond length is 3.18 Å. Mo(1) is bonded to six equivalent Nb(1) atoms to form corner-sharing MoNb6 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded in a 3-coordinate geometry to three equivalent Nb(1) atoms.