The structure described by TmMnSi2 crystallizes in the orthorhombic Cmcm space group. Tm(1) is bonded in a 10-coordinate geometry to four equivalent Si(2) and six equivalent Si(1) atoms. Mn(1) is bonded in a 5-coordinate geometry to one Si(1) and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted single-bond geometry to six equivalent Tm(1), one Mn(1), and two equivalent Si(1) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to four equivalent Tm(1) and four equivalent Mn(1) atoms. is represented by the CIF file [CIF]
data_TmMnSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.117
_cell_length_b   8.117
_cell_length_c   4.203
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   150.472
_symmetry_Int_Tables_number   1
_cell_volume   136.457
_cell_formula_units_Z   2
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
  Tm  Tm0  1  0.605  0.395  0.750  1.0
  Tm  Tm1  1  0.395  0.605  0.250  1.0
  Mn  Mn2  1  0.812  0.188  0.750  1.0
  Mn  Mn3  1  0.188  0.812  0.250  1.0
  Si  Si4  1  0.957  0.043  0.750  1.0
  Si  Si5  1  0.043  0.957  0.250  1.0
  Si  Si6  1  0.247  0.753  0.750  1.0
  Si  Si7  1  0.753  0.247  0.250  1.0
[/CIF]
.
The structure described by TmMnSi2 crystallizes in the orthorhombic Cmcm space group. Tm(1) is bonded in a 10-coordinate geometry to four equivalent Si(2) and six equivalent Si(1) atoms. Mn(1) is bonded in a 5-coordinate geometry to one Si(1) and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted single-bond geometry to six equivalent Tm(1), one Mn(1), and two equivalent Si(1) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to four equivalent Tm(1) and four equivalent Mn(1) atoms. is represented by the CIF file [CIF]
data_TmMnSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.117
_cell_length_b   8.117
_cell_length_c   4.203
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   150.472
_symmetry_Int_Tables_number   1
_cell_volume   136.457
_cell_formula_units_Z   2
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
  Tm  Tm0  1  0.605  0.395  0.750  1.0
  Tm  Tm1  1  0.395  0.605  0.250  1.0
  Mn  Mn2  1  0.812  0.188  0.750  1.0
  Mn  Mn3  1  0.188  0.812  0.250  1.0
  Si  Si4  1  0.957  0.043  0.750  1.0
  Si  Si5  1  0.043  0.957  0.250  1.0
  Si  Si6  1  0.247  0.753  0.750  1.0
  Si  Si7  1  0.753  0.247  0.250  1.0
[/CIF]
.