The material structure described by Tm5Si3C crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. In the second Tm site, Tm(2) is bonded in a 2-coordinate geometry to two equivalent Si(2), three equivalent Si(1), and two equivalent C(1) atoms. In the third Tm site, Tm(3) is bonded in a 2-coordinate geometry to one Si(1), four equivalent Si(2), and two equivalent C(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to two equivalent Tm(3), three equivalent Tm(2), and four equivalent Tm(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to one Tm(2), four equivalent Tm(1), and four equivalent Tm(3) atoms. C(1) is bonded to two equivalent Tm(2) and four equivalent Tm(3) atoms to form face-sharing CTm6 octahedra. is represented by the CIF card [CIF]
data_Tm5Si3C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.244
_cell_length_b   8.331
_cell_length_c   8.344
_cell_angle_alpha   119.950
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   376.072
_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  0.000  0.333  0.666  1.0
  Tm  Tm1  1  0.000  0.667  0.334  1.0
  Tm  Tm2  1  0.500  0.667  0.334  1.0
  Tm  Tm3  1  0.500  0.333  0.666  1.0
  Tm  Tm4  1  0.250  0.224  0.000  1.0
  Tm  Tm5  1  0.250  0.776  0.775  1.0
  Tm  Tm6  1  0.250  0.001  0.225  1.0
  Tm  Tm7  1  0.750  0.776  0.000  1.0
  Tm  Tm8  1  0.750  0.224  0.225  1.0
  Tm  Tm9  1  0.750  0.999  0.775  1.0
  Si  Si10  1  0.250  0.594  0.000  1.0
  Si  Si11  1  0.250  0.406  0.406  1.0
  Si  Si12  1  0.250  1.000  0.594  1.0
  Si  Si13  1  0.750  0.406  0.000  1.0
  Si  Si14  1  0.750  0.594  0.594  1.0
  Si  Si15  1  0.750  0.000  0.406  1.0
  C  C16  1  0.000  0.000  0.000  1.0
  C  C17  1  0.500  0.000  0.000  1.0
[/CIF]
.
The material structure described by Tm5Si3C crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 6-coordinate geometry to two equivalent Si(1) and four equivalent Si(2) atoms. In the second Tm site, Tm(2) is bonded in a 2-coordinate geometry to two equivalent Si(2), three equivalent Si(1), and two equivalent C(1) atoms. In the third Tm site, Tm(3) is bonded in a 2-coordinate geometry to one Si(1), four equivalent Si(2), and two equivalent C(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to two equivalent Tm(3), three equivalent Tm(2), and four equivalent Tm(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to one Tm(2), four equivalent Tm(1), and four equivalent Tm(3) atoms. C(1) is bonded to two equivalent Tm(2) and four equivalent Tm(3) atoms to form face-sharing CTm6 octahedra. is represented by the CIF card [CIF]
data_Tm5Si3C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.244
_cell_length_b   8.331
_cell_length_c   8.344
_cell_angle_alpha   119.950
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   376.072
_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  0.000  0.333  0.666  1.0
  Tm  Tm1  1  0.000  0.667  0.334  1.0
  Tm  Tm2  1  0.500  0.667  0.334  1.0
  Tm  Tm3  1  0.500  0.333  0.666  1.0
  Tm  Tm4  1  0.250  0.224  0.000  1.0
  Tm  Tm5  1  0.250  0.776  0.775  1.0
  Tm  Tm6  1  0.250  0.001  0.225  1.0
  Tm  Tm7  1  0.750  0.776  0.000  1.0
  Tm  Tm8  1  0.750  0.224  0.225  1.0
  Tm  Tm9  1  0.750  0.999  0.775  1.0
  Si  Si10  1  0.250  0.594  0.000  1.0
  Si  Si11  1  0.250  0.406  0.406  1.0
  Si  Si12  1  0.250  1.000  0.594  1.0
  Si  Si13  1  0.750  0.406  0.000  1.0
  Si  Si14  1  0.750  0.594  0.594  1.0
  Si  Si15  1  0.750  0.000  0.406  1.0
  C  C16  1  0.000  0.000  0.000  1.0
  C  C17  1  0.500  0.000  0.000  1.0
[/CIF]
.