The crystal structure described by Dy3Co2Si3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 9-coordinate geometry to four equivalent Co(1), two equivalent Si(2), and three equivalent Si(1) atoms. In the second Dy site, Dy(2) is bonded in a 10-coordinate geometry to four equivalent Co(1), two equivalent Si(1), and five equivalent Si(2) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Dy(1), four equivalent Dy(2), one Si(1), and three equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to three equivalent Dy(1), four equivalent Dy(2), and two equivalent Co(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Dy(1), five equivalent Dy(2), three equivalent Co(1), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy3Co2Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.617
_cell_length_b   5.617
_cell_length_c   13.603
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.278
_symmetry_Int_Tables_number   1
_cell_volume   291.154
_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
  Dy  Dy0  1  0.639  0.361  0.250  1.0
  Dy  Dy1  1  0.361  0.639  0.750  1.0
  Dy  Dy2  1  0.919  0.081  0.111  1.0
  Dy  Dy3  1  0.081  0.919  0.889  1.0
  Dy  Dy4  1  0.081  0.919  0.611  1.0
  Dy  Dy5  1  0.919  0.081  0.389  1.0
  Co  Co6  1  0.786  0.214  0.581  1.0
  Co  Co7  1  0.214  0.786  0.419  1.0
  Co  Co8  1  0.214  0.786  0.081  1.0
  Co  Co9  1  0.786  0.214  0.919  1.0
  Si  Si10  1  0.330  0.670  0.250  1.0
  Si  Si11  1  0.670  0.330  0.750  1.0
  Si  Si12  1  0.622  0.378  0.040  1.0
  Si  Si13  1  0.378  0.622  0.960  1.0
  Si  Si14  1  0.378  0.622  0.540  1.0
  Si  Si15  1  0.622  0.378  0.460  1.0
[/CIF]
.
The crystal structure described by Dy3Co2Si3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 9-coordinate geometry to four equivalent Co(1), two equivalent Si(2), and three equivalent Si(1) atoms. In the second Dy site, Dy(2) is bonded in a 10-coordinate geometry to four equivalent Co(1), two equivalent Si(1), and five equivalent Si(2) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Dy(1), four equivalent Dy(2), one Si(1), and three equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to three equivalent Dy(1), four equivalent Dy(2), and two equivalent Co(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Dy(1), five equivalent Dy(2), three equivalent Co(1), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy3Co2Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.617
_cell_length_b   5.617
_cell_length_c   13.603
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.278
_symmetry_Int_Tables_number   1
_cell_volume   291.154
_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
  Dy  Dy0  1  0.639  0.361  0.250  1.0
  Dy  Dy1  1  0.361  0.639  0.750  1.0
  Dy  Dy2  1  0.919  0.081  0.111  1.0
  Dy  Dy3  1  0.081  0.919  0.889  1.0
  Dy  Dy4  1  0.081  0.919  0.611  1.0
  Dy  Dy5  1  0.919  0.081  0.389  1.0
  Co  Co6  1  0.786  0.214  0.581  1.0
  Co  Co7  1  0.214  0.786  0.419  1.0
  Co  Co8  1  0.214  0.786  0.081  1.0
  Co  Co9  1  0.786  0.214  0.919  1.0
  Si  Si10  1  0.330  0.670  0.250  1.0
  Si  Si11  1  0.670  0.330  0.750  1.0
  Si  Si12  1  0.622  0.378  0.040  1.0
  Si  Si13  1  0.378  0.622  0.960  1.0
  Si  Si14  1  0.378  0.622  0.540  1.0
  Si  Si15  1  0.622  0.378  0.460  1.0
[/CIF]
.