The structure described by YbP5 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to one P(10), one P(2), one P(5), one P(6), one P(9), and two equivalent P(8) atoms to form YbP7 pentagonal bipyramids that share corners with two equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(4)Yb2P2 tetrahedra,  a cornercorner with one P(8)Yb2P2 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(3)YbP3 tetrahedra, corners with three equivalent P(6)YbP3 tetrahedra, corners with two equivalent P(9)Yb2P2 trigonal pyramids, and  an edgeedge with one P(7)YbP3 tetrahedra. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to one P(1), one P(10), one P(2), one P(3), one P(7), one P(9), and two equivalent P(4) atoms. There are ten inequivalent P sites. In the first P site, P(1) is bonded in a 4-coordinate geometry to one Yb(2), one P(10), one P(2), and one P(7) atom. In the second P site, P(2) is bonded to one Yb(1), one Yb(2), one P(1), and one P(5) atom to form PYb2P2 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra, corners with two equivalent P(8)Yb2P2 tetrahedra, corners with three equivalent P(4)Yb2P2 tetrahedra, corners with three equivalent P(7)YbP3 tetrahedra, and corners with two equivalent P(9)Yb2P2 trigonal pyramids. In the third P site, P(3) is bonded to one Yb(2), one P(10), one P(4), and one P(6) atom to form PYbP3 tetrahedra that share corners with two equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(8)Yb2P2 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(4)Yb2P2 tetrahedra, and corners with three equivalent P(9)Yb2P2 trigonal pyramids. In the fourth P site, P(4) is bonded to two equivalent Yb(2), one P(3), and one P(5) atom to form distorted PYb2P2 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(6)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(4)Yb2P2 tetrahedra, corners with two equivalent P(3)YbP3 tetrahedra, corners with three equivalent P(2)Yb2P2 tetrahedra, corners with two equivalent P(9)Yb2P2 trigonal pyramids, and  an edgeedge with one P(7)YbP3 tetrahedra. In the fifth P site, P(5) is bonded to one Yb(1), one P(2), one P(4), and one P(7) atom to form distorted PYbP3 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(8)Yb2P2 tetrahedra,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra,  a cornercorner with one P(9)Yb2P2 trigonal pyramid, and  an edgeedge with one P(8)Yb2P2 tetrahedra. In the sixth P site, P(6) is bonded to one Yb(1), one P(3), one P(8), and one P(9) atom to form PYbP3 tetrahedra that share corners with three equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(4)Yb2P2 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(8)Yb2P2 tetrahedra, and  a cornercorner with one P(9)Yb2P2 trigonal pyramid. In the seventh P site, P(7) is bonded to one Yb(2), one P(1), one P(5), and one P(8) atom to form distorted PYbP3 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(4)Yb2P2 tetrahedra,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra, corners with three equivalent P(2)Yb2P2 tetrahedra,  a cornercorner with one P(9)Yb2P2 trigonal pyramid,  an edgeedge with one Yb(1)P7 pentagonal bipyramid, and  an edgeedge with one P(4)Yb2P2 tetrahedra. In the eighth P site, P(8) is bonded to two equivalent Yb(1), one P(6), and one P(7) atom to form PYb2P2 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra, corners with two equivalent P(2)Yb2P2 tetrahedra, corners with two equivalent P(8)Yb2P2 tetrahedra, corners with two equivalent P(6)YbP3 tetrahedra, corners with three equivalent P(9)Yb2P2 trigonal pyramids, and  an edgeedge with one P(5)YbP3 tetrahedra. In the ninth P site, P(9) is bonded to one Yb(1), one Yb(2), one P(10), and one P(6) atom to form distorted PYb2P2 trigonal pyramids that share corners with two equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(2)Yb2P2 tetrahedra, corners with two equivalent P(4)Yb2P2 tetrahedra, corners with three equivalent P(8)Yb2P2 tetrahedra, and corners with three equivalent P(3)YbP3 tetrahedra. In the tenth P site, P(10) is bonded in a 5-coordinate geometry to one Yb(1), one Yb(2), one P(1), one P(3), and one P(9) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbP5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.628
_cell_length_b   5.519
_cell_length_c   16.400
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   103.320
_symmetry_Int_Tables_number   1
_cell_volume   495.667
_cell_formula_units_Z   4
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  0.029  0.117  0.511  1.0
  Yb  Yb1  1  0.999  0.444  0.739  1.0
  Yb  Yb2  1  0.971  0.883  0.011  1.0
  Yb  Yb3  1  0.001  0.556  0.239  1.0
  P  P4  1  0.690  0.817  0.323  1.0
  P  P5  1  0.274  0.812  0.866  1.0
  P  P6  1  0.446  0.800  0.679  1.0
  P  P7  1  0.794  0.888  0.743  1.0
  P  P8  1  0.660  0.788  0.866  1.0
  P  P9  1  0.310  0.183  0.823  1.0
  P  P10  1  0.405  0.285  0.061  1.0
  P  P11  1  0.664  0.393  0.871  1.0
  P  P12  1  0.248  0.668  0.496  1.0
  P  P13  1  0.726  0.188  0.366  1.0
  P  P14  1  0.676  0.359  0.597  1.0
  P  P15  1  0.324  0.641  0.097  1.0
  P  P16  1  0.595  0.715  0.561  1.0
  P  P17  1  0.340  0.212  0.366  1.0
  P  P18  1  0.336  0.607  0.371  1.0
  P  P19  1  0.554  0.200  0.179  1.0
  P  P20  1  0.358  0.169  0.664  1.0
  P  P21  1  0.206  0.112  0.243  1.0
  P  P22  1  0.642  0.831  0.164  1.0
  P  P23  1  0.752  0.332  0.996  1.0
[/CIF]
.
The structure described by YbP5 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to one P(10), one P(2), one P(5), one P(6), one P(9), and two equivalent P(8) atoms to form YbP7 pentagonal bipyramids that share corners with two equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(4)Yb2P2 tetrahedra,  a cornercorner with one P(8)Yb2P2 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(3)YbP3 tetrahedra, corners with three equivalent P(6)YbP3 tetrahedra, corners with two equivalent P(9)Yb2P2 trigonal pyramids, and  an edgeedge with one P(7)YbP3 tetrahedra. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to one P(1), one P(10), one P(2), one P(3), one P(7), one P(9), and two equivalent P(4) atoms. There are ten inequivalent P sites. In the first P site, P(1) is bonded in a 4-coordinate geometry to one Yb(2), one P(10), one P(2), and one P(7) atom. In the second P site, P(2) is bonded to one Yb(1), one Yb(2), one P(1), and one P(5) atom to form PYb2P2 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra, corners with two equivalent P(8)Yb2P2 tetrahedra, corners with three equivalent P(4)Yb2P2 tetrahedra, corners with three equivalent P(7)YbP3 tetrahedra, and corners with two equivalent P(9)Yb2P2 trigonal pyramids. In the third P site, P(3) is bonded to one Yb(2), one P(10), one P(4), and one P(6) atom to form PYbP3 tetrahedra that share corners with two equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(8)Yb2P2 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(4)Yb2P2 tetrahedra, and corners with three equivalent P(9)Yb2P2 trigonal pyramids. In the fourth P site, P(4) is bonded to two equivalent Yb(2), one P(3), and one P(5) atom to form distorted PYb2P2 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(6)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(4)Yb2P2 tetrahedra, corners with two equivalent P(3)YbP3 tetrahedra, corners with three equivalent P(2)Yb2P2 tetrahedra, corners with two equivalent P(9)Yb2P2 trigonal pyramids, and  an edgeedge with one P(7)YbP3 tetrahedra. In the fifth P site, P(5) is bonded to one Yb(1), one P(2), one P(4), and one P(7) atom to form distorted PYbP3 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(8)Yb2P2 tetrahedra,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra,  a cornercorner with one P(9)Yb2P2 trigonal pyramid, and  an edgeedge with one P(8)Yb2P2 tetrahedra. In the sixth P site, P(6) is bonded to one Yb(1), one P(3), one P(8), and one P(9) atom to form PYbP3 tetrahedra that share corners with three equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(2)Yb2P2 tetrahedra,  a cornercorner with one P(4)Yb2P2 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(8)Yb2P2 tetrahedra, and  a cornercorner with one P(9)Yb2P2 trigonal pyramid. In the seventh P site, P(7) is bonded to one Yb(2), one P(1), one P(5), and one P(8) atom to form distorted PYbP3 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(4)Yb2P2 tetrahedra,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra, corners with three equivalent P(2)Yb2P2 tetrahedra,  a cornercorner with one P(9)Yb2P2 trigonal pyramid,  an edgeedge with one Yb(1)P7 pentagonal bipyramid, and  an edgeedge with one P(4)Yb2P2 tetrahedra. In the eighth P site, P(8) is bonded to two equivalent Yb(1), one P(6), and one P(7) atom to form PYb2P2 tetrahedra that share  a cornercorner with one Yb(1)P7 pentagonal bipyramid,  a cornercorner with one P(3)YbP3 tetrahedra,  a cornercorner with one P(5)YbP3 tetrahedra, corners with two equivalent P(2)Yb2P2 tetrahedra, corners with two equivalent P(8)Yb2P2 tetrahedra, corners with two equivalent P(6)YbP3 tetrahedra, corners with three equivalent P(9)Yb2P2 trigonal pyramids, and  an edgeedge with one P(5)YbP3 tetrahedra. In the ninth P site, P(9) is bonded to one Yb(1), one Yb(2), one P(10), and one P(6) atom to form distorted PYb2P2 trigonal pyramids that share corners with two equivalent Yb(1)P7 pentagonal bipyramids,  a cornercorner with one P(5)YbP3 tetrahedra,  a cornercorner with one P(6)YbP3 tetrahedra,  a cornercorner with one P(7)YbP3 tetrahedra, corners with two equivalent P(2)Yb2P2 tetrahedra, corners with two equivalent P(4)Yb2P2 tetrahedra, corners with three equivalent P(8)Yb2P2 tetrahedra, and corners with three equivalent P(3)YbP3 tetrahedra. In the tenth P site, P(10) is bonded in a 5-coordinate geometry to one Yb(1), one Yb(2), one P(1), one P(3), and one P(9) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbP5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.628
_cell_length_b   5.519
_cell_length_c   16.400
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   103.320
_symmetry_Int_Tables_number   1
_cell_volume   495.667
_cell_formula_units_Z   4
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  0.029  0.117  0.511  1.0
  Yb  Yb1  1  0.999  0.444  0.739  1.0
  Yb  Yb2  1  0.971  0.883  0.011  1.0
  Yb  Yb3  1  0.001  0.556  0.239  1.0
  P  P4  1  0.690  0.817  0.323  1.0
  P  P5  1  0.274  0.812  0.866  1.0
  P  P6  1  0.446  0.800  0.679  1.0
  P  P7  1  0.794  0.888  0.743  1.0
  P  P8  1  0.660  0.788  0.866  1.0
  P  P9  1  0.310  0.183  0.823  1.0
  P  P10  1  0.405  0.285  0.061  1.0
  P  P11  1  0.664  0.393  0.871  1.0
  P  P12  1  0.248  0.668  0.496  1.0
  P  P13  1  0.726  0.188  0.366  1.0
  P  P14  1  0.676  0.359  0.597  1.0
  P  P15  1  0.324  0.641  0.097  1.0
  P  P16  1  0.595  0.715  0.561  1.0
  P  P17  1  0.340  0.212  0.366  1.0
  P  P18  1  0.336  0.607  0.371  1.0
  P  P19  1  0.554  0.200  0.179  1.0
  P  P20  1  0.358  0.169  0.664  1.0
  P  P21  1  0.206  0.112  0.243  1.0
  P  P22  1  0.642  0.831  0.164  1.0
  P  P23  1  0.752  0.332  0.996  1.0
[/CIF]
.