data_Nd2Co19Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.55
_cell_length_b   7.55
_cell_length_c   6.28
_cell_angle_alpha   114.28
_cell_angle_beta   114.28
_cell_angle_gamma   80.69
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nd2Co19Si3
_chemical_formula_sum   'Nd2 Co19 Si3'
_cell_volume   296.88
_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
  Nd  Nd0  1  0.78  0.0  0.31  1.0
  Nd  Nd1  1  0.34  0.0  0.97  1.0
  Co  Co2  1  0.64  0.0  0.62  1.0
  Co  Co3  1  0.48  0.0  0.66  1.0
  Co  Co4  1  0.33  0.67  0.42  1.0
  Co  Co5  1  0.33  0.33  0.42  1.0
  Co  Co6  1  0.82  0.98  0.31  1.0
  Co  Co7  1  0.82  0.02  0.31  1.0
  Co  Co8  1  0.36  0.77  0.53  1.0
  Co  Co9  1  0.36  0.23  0.53  1.0
  Co  Co10  1  0.55  0.89  0.0  1.0
  Co  Co11  1  0.55  0.11  0.0  1.0
  Co  Co12  1  0.79  0.33  0.86  1.0
  Co  Co13  1  0.79  0.67  0.86  1.0
  Co  Co14  1  0.29  0.02  0.97  1.0
  Co  Co15  1  0.29  0.98  0.97  1.0
  Co  Co16  1  0.76  0.23  0.75  1.0
  Co  Co17  1  0.76  0.77  0.75  1.0
  Co  Co18  1  0.56  0.11  0.28  1.0
  Co  Co19  1  0.56  0.89  0.28  1.0
  Co  Co20  1  0.06  0.0  0.64  1.0
  Si  Si21  1  0.88  0.44  0.0  1.0
  Si  Si22  1  0.88  0.56  0.0  1.0
  Si  Si23  1  0.0  0.0  0.0  1.0

data_Nd2Co19Si3
_symmetry_space_group_name_H-M   P1
_cell_length_a   6.28
_cell_length_b   7.55
_cell_length_c   7.55
_cell_angle_alpha   80.69
_cell_angle_beta   65.72
_cell_angle_gamma   65.72
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nd2Co19Si3
_chemical_formula_sum   'Nd2 Co19 Si3'
_cell_volume   296.88
_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
  Nd  Nd0  1  0.31  0.22  0.0  1.0
  Nd  Nd1  1  0.97  0.66  0.0  1.0
  Co  Co2  1  0.0  0.45  0.89  1.0
  Co  Co3  1  0.0  0.45  0.11  1.0
  Co  Co4  1  0.28  0.44  0.11  1.0
  Co  Co5  1  0.28  0.44  0.89  1.0
  Co  Co6  1  0.31  0.18  0.02  1.0
  Co  Co7  1  0.31  0.18  0.98  1.0
  Co  Co8  1  0.42  0.67  0.33  1.0
  Co  Co9  1  0.42  0.67  0.67  1.0
  Co  Co10  1  0.53  0.64  0.23  1.0
  Co  Co11  1  0.53  0.64  0.77  1.0
  Co  Co12  1  0.62  0.36  0.0  1.0
  Co  Co13  1  0.64  0.94  0.0  1.0
  Co  Co14  1  0.66  0.52  0.0  1.0
  Co  Co15  1  0.75  0.24  0.23  1.0
  Co  Co16  1  0.75  0.24  0.77  1.0
  Co  Co17  1  0.86  0.21  0.33  1.0
  Co  Co18  1  0.86  0.21  0.67  1.0
  Co  Co19  1  0.97  0.71  0.02  1.0
  Co  Co20  1  0.97  0.71  0.98  1.0
  Si  Si21  1  -0.0  0.12  0.56  1.0
  Si  Si22  1  -0.0  0.12  0.44  1.0
  Si  Si23  1  0.0  0.0  0.0  1.0

Nd Nd Co Co Co Co Co Co Co Co Co Co Co Co Co Co Co Co Co Co Co Si Si Si
Nd2Co19Si3 crystallizes in the triclinic P1 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 2-coordinate geometry to one Co(18); one Co(5); one Co(6); and one Co(9,17) atom. The Nd(1)-Co(18) bond length is 1.86 Å. The Nd(1)-Co(5) bond length is 0.35 Å. The Nd(1)-Co(6) bond length is 0.39 Å. The Nd(1)-Co(9,17) bond length is 1.68 Å. In the second Nd site, Nd(2) is bonded in a 2-coordinate geometry to one Co(10); one Co(13); one Co(14); and one Co(9,17) atom. The Nd(2)-Co(10) bond length is 1.86 Å. The Nd(2)-Co(13) bond length is 0.35 Å. The Nd(2)-Co(14) bond length is 0.39 Å. The Nd(2)-Co(9,17) bond length is 1.68 Å. There are eighteen inequivalent Co sites. In the first Co site, Co(1) is bonded in a 1-coordinate geometry to one Co(15), one Co(16), one Co(18), one Co(2), and one Si(3) atom. The Co(1)-Co(15) bond length is 1.80 Å. The Co(1)-Co(16) bond length is 2.14 Å. The Co(1)-Co(18) bond length is 1.79 Å. The Co(1)-Co(2) bond length is 1.34 Å. The Co(1)-Si(3) bond length is 2.79 Å. In the second Co site, Co(2) is bonded in a 1-coordinate geometry to one Co(1), one Co(10), one Co(7), and one Co(8) atom. The Co(2)-Co(10) bond length is 1.79 Å. The Co(2)-Co(7) bond length is 1.80 Å. The Co(2)-Co(8) bond length is 2.14 Å. In the third Co site, Co(3) is bonded in a single-bond geometry to one Co(7) atom. The Co(3)-Co(7) bond length is 0.77 Å. In the fourth Co site, Co(4) is bonded in a distorted single-bond geometry to one Co(8) atom. The Co(4)-Co(8) bond length is 1.15 Å. In the fifth Co site, Co(5) is bonded in a 2-coordinate geometry to one Nd(1), one Co(19), and one Co(6) atom. The Co(5)-Co(19) bond length is 2.08 Å. The Co(5)-Co(6) bond length is 0.27 Å. In the sixth Co site, Co(6) is bonded in a 2-coordinate geometry to one Nd(1), one Co(5), and one Si(3) atom. The Co(6)-Si(3) bond length is 2.75 Å. In the seventh Co site, Co(7) is bonded in a 2-coordinate geometry to one Co(2) and one Co(3) atom. In the eighth Co site, Co(8) is bonded in a 2-coordinate geometry to one Co(2) and one Co(4) atom. In the ninth Co site, Co(9,17) is bonded in a 1-coordinate geometry to one Nd(2), one Co(10), and one Co(18) atom. The Co(9,17)-Co(10) bond length is 1.72 Å. The Co(9,17)-Co(18) bond length is 1.75 Å. In the tenth Co site, Co(10) is bonded in a 4-coordinate geometry to one Nd(2); one Co(2); and two equivalent Co(9,17) atoms. In the eleventh Co site, Co(11) is bonded in a bent 150 degrees geometry to one Co(15) and one Si(1) atom. The Co(11)-Co(15) bond length is 0.77 Å. The Co(11)-Si(1) bond length is 1.01 Å. In the twelfth Co site, Co(12) is bonded in a distorted linear geometry to one Co(16) and one Si(2) atom. The Co(12)-Co(16) bond length is 1.15 Å. The Co(12)-Si(2) bond length is 1.37 Å. In the thirteenth Co site, Co(13) is bonded in a 2-coordinate geometry to one Nd(2), one Co(14), one Co(19), and one Si(3) atom. The Co(13)-Co(14) bond length is 0.27 Å. The Co(13)-Co(19) bond length is 2.08 Å. The Co(13)-Si(3) bond length is 2.33 Å. In the fourteenth Co site, Co(14) is bonded in a 2-coordinate geometry to one Nd(2), one Co(13), and one Si(3) atom. The Co(14)-Si(3) bond length is 2.27 Å. In the fifteenth Co site, Co(15) is bonded in a 2-coordinate geometry to one Co(1), one Co(11), and one Si(3) atom. The Co(15)-Si(3) bond length is 2.77 Å. In the sixteenth Co site, Co(16) is bonded in a 3-coordinate geometry to one Co(1), one Co(12), and one Si(3) atom. The Co(16)-Si(3) bond length is 2.30 Å. In the seventeenth Co site, Co(18) is bonded in a 4-coordinate geometry to one Nd(1); one Co(1); and two equivalent Co(9,17) atoms. In the eighteenth Co site, Co(19) is bonded in a 3-coordinate geometry to one Co(13), one Co(5), and one Si(3) atom. The Co(19)-Si(3) bond length is 2.46 Å. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a bent 120 degrees geometry to one Co(11) and one Si(2) atom. The Si(1)-Si(2) bond length is 0.87 Å. In the second Si site, Si(2) is bonded in a bent 150 degrees geometry to one Co(12) and one Si(1) atom. In the third Si site, Si(3) is bonded in a 7-coordinate geometry to one Co(1), one Co(13), one Co(14), one Co(15), one Co(16), one Co(19), and one Co(6) atom.