The material described by La4Rh8P9 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 17-coordinate geometry to one Rh(3), two equivalent Rh(2), two equivalent Rh(4), four equivalent Rh(1), two equivalent P(1), two equivalent P(2), and four equivalent P(3) atoms. In the second La site, La(2) is bonded in a 16-coordinate geometry to one Rh(2), two equivalent Rh(1), two equivalent Rh(5), three equivalent Rh(4), one P(1), one P(4), two equivalent P(2), and four equivalent P(3) atoms. In the third La site, La(3) is bonded in a 21-coordinate geometry to one Rh(2), two equivalent Rh(3), two equivalent Rh(4), four equivalent Rh(5), two equivalent P(2), four equivalent P(3), and six equivalent P(4) atoms. There are five inequivalent Rh sites. In the first Rh site, Rh(5) is bonded in a 4-coordinate geometry to two equivalent La(2), two equivalent La(3), two equivalent P(2), and two equivalent P(4) atoms. In the second Rh site, Rh(1) is bonded in a 4-coordinate geometry to two equivalent La(1), two equivalent La(2), two equivalent P(1), and two equivalent P(2) atoms. In the third Rh site, Rh(2) is bonded in a 10-coordinate geometry to one La(3), two equivalent La(1), two equivalent La(2), one P(1), and four equivalent P(3) atoms. In the fourth Rh site, Rh(3) is bonded in a 9-coordinate geometry to one La(1), two equivalent La(3), two equivalent P(4), and four equivalent P(3) atoms. In the fifth Rh site, Rh(4) is bonded in a 5-coordinate geometry to one La(1), one La(3), three equivalent La(2), one P(2), and four equivalent P(3) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent La(1), two equivalent La(2), one Rh(2), and four equivalent Rh(1) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to one La(1), one La(3), two equivalent La(2), one Rh(4), two equivalent Rh(1), and two equivalent Rh(5) atoms. In the third P site, P(3) is bonded in a 8-coordinate geometry to one La(1), one La(3), two equivalent La(2), one Rh(2), one Rh(3), and two equivalent Rh(4) atoms. In the fourth P site, P(4) is bonded in a 8-coordinate geometry to one La(2), three equivalent La(3), one Rh(3), two equivalent Rh(5), and one P(4) atom. is represented by the CIF file [CIF]
data_La4P9Rh8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.531
_cell_length_b   11.531
_cell_length_c   5.793
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   111.024
_symmetry_Int_Tables_number   1
_cell_volume   718.981
_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
  La  La0  1  0.360  0.640  0.750  1.0
  La  La1  1  0.640  0.360  0.250  1.0
  La  La2  1  0.410  0.139  0.750  1.0
  La  La3  1  0.139  0.410  0.250  1.0
  La  La4  1  0.590  0.861  0.250  1.0
  La  La5  1  0.861  0.590  0.750  1.0
  La  La6  1  0.888  0.112  0.750  1.0
  La  La7  1  0.112  0.888  0.250  1.0
  P  P8  1  0.573  0.427  0.750  1.0
  P  P9  1  0.427  0.573  0.250  1.0
  P  P10  1  0.647  0.788  0.750  1.0
  P  P11  1  0.788  0.647  0.250  1.0
  P  P12  1  0.353  0.212  0.250  1.0
  P  P13  1  0.212  0.353  0.750  1.0
  P  P14  1  0.365  0.883  0.998  1.0
  P  P15  1  0.883  0.365  0.002  1.0
  P  P16  1  0.365  0.883  0.502  1.0
  P  P17  1  0.883  0.365  0.498  1.0
  P  P18  1  0.635  0.117  0.002  1.0
  P  P19  1  0.117  0.635  0.998  1.0
  P  P20  1  0.635  0.117  0.498  1.0
  P  P21  1  0.117  0.635  0.502  1.0
  P  P22  1  0.143  0.016  0.750  1.0
  P  P23  1  0.016  0.143  0.250  1.0
  P  P24  1  0.857  0.984  0.250  1.0
  P  P25  1  0.984  0.857  0.750  1.0
  Rh  Rh26  1  0.606  0.606  0.000  1.0
  Rh  Rh27  1  0.606  0.606  0.500  1.0
  Rh  Rh28  1  0.394  0.394  0.000  1.0
  Rh  Rh29  1  0.394  0.394  0.500  1.0
  Rh  Rh30  1  0.709  0.291  0.750  1.0
  Rh  Rh31  1  0.291  0.709  0.250  1.0
  Rh  Rh32  1  0.184  0.816  0.750  1.0
  Rh  Rh33  1  0.816  0.184  0.250  1.0
  Rh  Rh34  1  0.546  0.940  0.750  1.0
  Rh  Rh35  1  0.940  0.546  0.250  1.0
  Rh  Rh36  1  0.454  0.060  0.250  1.0
  Rh  Rh37  1  0.060  0.454  0.750  1.0
  Rh  Rh38  1  0.819  0.819  0.000  1.0
  Rh  Rh39  1  0.819  0.819  0.500  1.0
  Rh  Rh40  1  0.181  0.181  0.000  1.0
  Rh  Rh41  1  0.181  0.181  0.500  1.0
[/CIF]
.
The material described by La4Rh8P9 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 17-coordinate geometry to one Rh(3), two equivalent Rh(2), two equivalent Rh(4), four equivalent Rh(1), two equivalent P(1), two equivalent P(2), and four equivalent P(3) atoms. In the second La site, La(2) is bonded in a 16-coordinate geometry to one Rh(2), two equivalent Rh(1), two equivalent Rh(5), three equivalent Rh(4), one P(1), one P(4), two equivalent P(2), and four equivalent P(3) atoms. In the third La site, La(3) is bonded in a 21-coordinate geometry to one Rh(2), two equivalent Rh(3), two equivalent Rh(4), four equivalent Rh(5), two equivalent P(2), four equivalent P(3), and six equivalent P(4) atoms. There are five inequivalent Rh sites. In the first Rh site, Rh(5) is bonded in a 4-coordinate geometry to two equivalent La(2), two equivalent La(3), two equivalent P(2), and two equivalent P(4) atoms. In the second Rh site, Rh(1) is bonded in a 4-coordinate geometry to two equivalent La(1), two equivalent La(2), two equivalent P(1), and two equivalent P(2) atoms. In the third Rh site, Rh(2) is bonded in a 10-coordinate geometry to one La(3), two equivalent La(1), two equivalent La(2), one P(1), and four equivalent P(3) atoms. In the fourth Rh site, Rh(3) is bonded in a 9-coordinate geometry to one La(1), two equivalent La(3), two equivalent P(4), and four equivalent P(3) atoms. In the fifth Rh site, Rh(4) is bonded in a 5-coordinate geometry to one La(1), one La(3), three equivalent La(2), one P(2), and four equivalent P(3) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent La(1), two equivalent La(2), one Rh(2), and four equivalent Rh(1) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to one La(1), one La(3), two equivalent La(2), one Rh(4), two equivalent Rh(1), and two equivalent Rh(5) atoms. In the third P site, P(3) is bonded in a 8-coordinate geometry to one La(1), one La(3), two equivalent La(2), one Rh(2), one Rh(3), and two equivalent Rh(4) atoms. In the fourth P site, P(4) is bonded in a 8-coordinate geometry to one La(2), three equivalent La(3), one Rh(3), two equivalent Rh(5), and one P(4) atom. is represented by the CIF file [CIF]
data_La4P9Rh8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.531
_cell_length_b   11.531
_cell_length_c   5.793
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   111.024
_symmetry_Int_Tables_number   1
_cell_volume   718.981
_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
  La  La0  1  0.360  0.640  0.750  1.0
  La  La1  1  0.640  0.360  0.250  1.0
  La  La2  1  0.410  0.139  0.750  1.0
  La  La3  1  0.139  0.410  0.250  1.0
  La  La4  1  0.590  0.861  0.250  1.0
  La  La5  1  0.861  0.590  0.750  1.0
  La  La6  1  0.888  0.112  0.750  1.0
  La  La7  1  0.112  0.888  0.250  1.0
  P  P8  1  0.573  0.427  0.750  1.0
  P  P9  1  0.427  0.573  0.250  1.0
  P  P10  1  0.647  0.788  0.750  1.0
  P  P11  1  0.788  0.647  0.250  1.0
  P  P12  1  0.353  0.212  0.250  1.0
  P  P13  1  0.212  0.353  0.750  1.0
  P  P14  1  0.365  0.883  0.998  1.0
  P  P15  1  0.883  0.365  0.002  1.0
  P  P16  1  0.365  0.883  0.502  1.0
  P  P17  1  0.883  0.365  0.498  1.0
  P  P18  1  0.635  0.117  0.002  1.0
  P  P19  1  0.117  0.635  0.998  1.0
  P  P20  1  0.635  0.117  0.498  1.0
  P  P21  1  0.117  0.635  0.502  1.0
  P  P22  1  0.143  0.016  0.750  1.0
  P  P23  1  0.016  0.143  0.250  1.0
  P  P24  1  0.857  0.984  0.250  1.0
  P  P25  1  0.984  0.857  0.750  1.0
  Rh  Rh26  1  0.606  0.606  0.000  1.0
  Rh  Rh27  1  0.606  0.606  0.500  1.0
  Rh  Rh28  1  0.394  0.394  0.000  1.0
  Rh  Rh29  1  0.394  0.394  0.500  1.0
  Rh  Rh30  1  0.709  0.291  0.750  1.0
  Rh  Rh31  1  0.291  0.709  0.250  1.0
  Rh  Rh32  1  0.184  0.816  0.750  1.0
  Rh  Rh33  1  0.816  0.184  0.250  1.0
  Rh  Rh34  1  0.546  0.940  0.750  1.0
  Rh  Rh35  1  0.940  0.546  0.250  1.0
  Rh  Rh36  1  0.454  0.060  0.250  1.0
  Rh  Rh37  1  0.060  0.454  0.750  1.0
  Rh  Rh38  1  0.819  0.819  0.000  1.0
  Rh  Rh39  1  0.819  0.819  0.500  1.0
  Rh  Rh40  1  0.181  0.181  0.000  1.0
  Rh  Rh41  1  0.181  0.181  0.500  1.0
[/CIF]
.