The material structure described by Yb4Cu2Sn5 crystallizes in the orthorhombic Pmmn space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 9-coordinate geometry to two equivalent Cu(1), one Sn(3), three equivalent Sn(1), and three equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded in a 12-coordinate geometry to four equivalent Cu(1), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. In the third Yb site, Yb(3) is bonded in a 8-coordinate geometry to two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to two equivalent Yb(1), two equivalent Yb(2), one Sn(1), one Sn(3), and three equivalent Sn(2) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Yb(2), two equivalent Yb(3), three equivalent Yb(1), one Cu(1), and one Sn(1) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to one Yb(2), one Yb(3), three equivalent Yb(1), three equivalent Cu(1), and two equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded to two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Cu(1), and four equivalent Sn(2) atoms to form distorted face-sharing SnYb6Cu2Sn4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb4Cu2Sn5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.371
_cell_length_b   8.905
_cell_length_c   13.729
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   534.393
_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
  Yb  Yb0  1  0.500  0.794  0.743  1.0
  Yb  Yb1  1  0.500  0.706  1.000  1.0
  Yb  Yb2  1  0.000  0.206  0.757  1.0
  Yb  Yb3  1  0.000  0.294  0.500  1.0
  Yb  Yb4  1  0.000  0.206  0.243  1.0
  Yb  Yb5  1  0.500  0.140  1.000  1.0
  Yb  Yb6  1  1.000  0.860  0.500  1.0
  Yb  Yb7  1  0.500  0.794  0.257  1.0
  Cu  Cu8  1  0.500  0.370  0.644  1.0
  Cu  Cu9  1  0.000  0.630  0.856  1.0
  Cu  Cu10  1  1.000  0.630  0.144  1.0
  Cu  Cu11  1  0.500  0.370  0.356  1.0
  Sn  Sn12  1  0.500  0.079  0.396  1.0
  Sn  Sn13  1  0.000  0.552  0.663  1.0
  Sn  Sn14  1  0.000  0.412  0.000  1.0
  Sn  Sn15  1  0.500  0.448  0.163  1.0
  Sn  Sn16  1  0.500  0.588  0.500  1.0
  Sn  Sn17  1  0.500  0.448  0.837  1.0
  Sn  Sn18  1  0.000  0.921  0.896  1.0
  Sn  Sn19  1  0.000  0.552  0.337  1.0
  Sn  Sn20  1  0.500  0.079  0.604  1.0
  Sn  Sn21  1  0.000  0.921  0.104  1.0
[/CIF]
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The material structure described by Yb4Cu2Sn5 crystallizes in the orthorhombic Pmmn space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 9-coordinate geometry to two equivalent Cu(1), one Sn(3), three equivalent Sn(1), and three equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded in a 12-coordinate geometry to four equivalent Cu(1), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. In the third Yb site, Yb(3) is bonded in a 8-coordinate geometry to two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to two equivalent Yb(1), two equivalent Yb(2), one Sn(1), one Sn(3), and three equivalent Sn(2) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Yb(2), two equivalent Yb(3), three equivalent Yb(1), one Cu(1), and one Sn(1) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to one Yb(2), one Yb(3), three equivalent Yb(1), three equivalent Cu(1), and two equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded to two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Cu(1), and four equivalent Sn(2) atoms to form distorted face-sharing SnYb6Cu2Sn4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb4Cu2Sn5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.371
_cell_length_b   8.905
_cell_length_c   13.729
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   534.393
_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
  Yb  Yb0  1  0.500  0.794  0.743  1.0
  Yb  Yb1  1  0.500  0.706  1.000  1.0
  Yb  Yb2  1  0.000  0.206  0.757  1.0
  Yb  Yb3  1  0.000  0.294  0.500  1.0
  Yb  Yb4  1  0.000  0.206  0.243  1.0
  Yb  Yb5  1  0.500  0.140  1.000  1.0
  Yb  Yb6  1  1.000  0.860  0.500  1.0
  Yb  Yb7  1  0.500  0.794  0.257  1.0
  Cu  Cu8  1  0.500  0.370  0.644  1.0
  Cu  Cu9  1  0.000  0.630  0.856  1.0
  Cu  Cu10  1  1.000  0.630  0.144  1.0
  Cu  Cu11  1  0.500  0.370  0.356  1.0
  Sn  Sn12  1  0.500  0.079  0.396  1.0
  Sn  Sn13  1  0.000  0.552  0.663  1.0
  Sn  Sn14  1  0.000  0.412  0.000  1.0
  Sn  Sn15  1  0.500  0.448  0.163  1.0
  Sn  Sn16  1  0.500  0.588  0.500  1.0
  Sn  Sn17  1  0.500  0.448  0.837  1.0
  Sn  Sn18  1  0.000  0.921  0.896  1.0
  Sn  Sn19  1  0.000  0.552  0.337  1.0
  Sn  Sn20  1  0.500  0.079  0.604  1.0
  Sn  Sn21  1  0.000  0.921  0.104  1.0
[/CIF]
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