data_MnVSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.89
_cell_length_b   3.89
_cell_length_c   3.89
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnVSi
_chemical_formula_sum   'Mn1 V1 Si1'
_cell_volume   41.69
_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
  Mn  Mn0  1  0.38  0.38  0.38  1.0
  V  V2  1  0.75  0.75  0.75  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0

data_MnVSi
_symmetry_space_group_name_H-M   R3m
_cell_length_a   3.89
_cell_length_b   3.89
_cell_length_c   9.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   MnVSi
_chemical_formula_sum   'Mn3 V3 Si3'
_cell_volume   125.07
_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
  Mn  Mn0  3  0.0  0.0  0.62  1.0
  V  V1  3  0.0  0.0  0.25  1.0
  Si  Si2  3  0.0  0.0  0.0  1.0

Mn V Si
Mn V Si 0 2 o o + 0 2 o + o 0 2 + o o 0 1 - o o 0 1 o - o 0 1 o o - 1 2 + o + 1 2 o + + 1 2 + + o 1 2 + + + 
VMnSi is alpha boron-derived structured and crystallizes in the trigonal R3m space group. V(1) is bonded in a 7-coordinate geometry to three equivalent Mn(1) and four equivalent Si(1) atoms. All V(1)-Mn(1) bond lengths are 2.28 Å. There is one shorter (2.36 Å) and three longer (2.39 Å) V(1)-Si(1) bond lengths. Mn(1) is bonded in a distorted hexagonal planar geometry to three equivalent V(1) and three equivalent Si(1) atoms. All Mn(1)-Si(1) bond lengths are 2.28 Å. Si(1) is bonded to four equivalent V(1) and three equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing SiMn3V4 hexagonal pyramids.