The material described by La2Rh7 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to three equivalent Rh(5) and nine equivalent Rh(3) atoms. In the second La site, La(2) is bonded in a 18-coordinate geometry to three equivalent Rh(1), three equivalent Rh(4), six equivalent Rh(2), and six equivalent Rh(3) atoms. There are five inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to three equivalent La(2), three equivalent Rh(2), three equivalent Rh(3), and three equivalent Rh(4) atoms. In the second Rh site, Rh(2) is bonded to four equivalent La(2), two equivalent Rh(1), two equivalent Rh(4), and four equivalent Rh(2) atoms to form RhLa4Rh8 cuboctahedra that share corners with four equivalent Rh(2)La4Rh8 cuboctahedra, corners with twelve equivalent Rh(3)La5Rh7 cuboctahedra, edges with two equivalent Rh(2)La4Rh8 cuboctahedra, edges with eight equivalent Rh(3)La5Rh7 cuboctahedra, faces with two equivalent Rh(3)La5Rh7 cuboctahedra, and faces with eight equivalent Rh(2)La4Rh8 cuboctahedra. In the third Rh site, Rh(3) is bonded to two equivalent La(2), three equivalent La(1), one Rh(1), one Rh(4), one Rh(5), and four equivalent Rh(3) atoms to form distorted RhLa5Rh7 cuboctahedra that share corners with two equivalent Rh(5)La6Rh6 cuboctahedra, corners with six equivalent Rh(2)La4Rh8 cuboctahedra, corners with nine equivalent Rh(3)La5Rh7 cuboctahedra, edges with four equivalent Rh(2)La4Rh8 cuboctahedra, edges with four equivalent Rh(3)La5Rh7 cuboctahedra,  a faceface with one Rh(2)La4Rh8 cuboctahedra, faces with three equivalent Rh(5)La6Rh6 cuboctahedra, and faces with ten equivalent Rh(3)La5Rh7 cuboctahedra. In the fourth Rh site, Rh(4) is bonded in a 12-coordinate geometry to three equivalent La(2), three equivalent Rh(1), three equivalent Rh(2), and three equivalent Rh(3) atoms. In the fifth Rh site, Rh(5) is bonded to six equivalent La(1) and six equivalent Rh(3) atoms to form RhLa6Rh6 cuboctahedra that share corners with twelve equivalent Rh(3)La5Rh7 cuboctahedra, edges with six equivalent Rh(5)La6Rh6 cuboctahedra, and faces with eighteen equivalent Rh(3)La5Rh7 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_La2Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.305
_cell_length_b   5.305
_cell_length_c   26.372
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   642.715
_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
  La  La0  1  0.667  0.333  0.530  1.0
  La  La1  1  0.333  0.667  0.030  1.0
  La  La2  1  0.333  0.667  0.174  1.0
  La  La3  1  0.667  0.333  0.970  1.0
  La  La4  1  0.667  0.333  0.674  1.0
  La  La5  1  0.667  0.333  0.826  1.0
  La  La6  1  0.333  0.667  0.326  1.0
  La  La7  1  0.333  0.667  0.470  1.0
  Rh  Rh8  1  0.000  0.000  0.668  1.0
  Rh  Rh9  1  0.834  0.667  0.250  1.0
  Rh  Rh10  1  0.166  0.333  0.586  1.0
  Rh  Rh11  1  0.834  0.166  0.414  1.0
  Rh  Rh12  1  0.667  0.834  0.914  1.0
  Rh  Rh13  1  0.333  0.667  0.833  1.0
  Rh  Rh14  1  0.834  0.667  0.086  1.0
  Rh  Rh15  1  0.834  0.667  0.414  1.0
  Rh  Rh16  1  0.166  0.834  0.914  1.0
  Rh  Rh17  1  0.667  0.333  0.333  1.0
  Rh  Rh18  1  0.000  0.000  0.332  1.0
  Rh  Rh19  1  0.166  0.834  0.586  1.0
  Rh  Rh20  1  0.333  0.166  0.414  1.0
  Rh  Rh21  1  0.000  0.000  0.000  1.0
  Rh  Rh22  1  0.000  0.000  0.168  1.0
  Rh  Rh23  1  0.333  0.667  0.667  1.0
  Rh  Rh24  1  0.667  0.834  0.586  1.0
  Rh  Rh25  1  0.667  0.834  0.750  1.0
  Rh  Rh26  1  0.834  0.166  0.086  1.0
  Rh  Rh27  1  0.834  0.166  0.250  1.0
  Rh  Rh28  1  0.333  0.166  0.086  1.0
  Rh  Rh29  1  0.667  0.333  0.167  1.0
  Rh  Rh30  1  0.166  0.333  0.914  1.0
  Rh  Rh31  1  0.000  0.000  0.500  1.0
  Rh  Rh32  1  0.166  0.333  0.750  1.0
  Rh  Rh33  1  0.000  0.000  0.832  1.0
  Rh  Rh34  1  0.166  0.834  0.750  1.0
  Rh  Rh35  1  0.333  0.166  0.250  1.0
[/CIF]
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The material described by La2Rh7 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to three equivalent Rh(5) and nine equivalent Rh(3) atoms. In the second La site, La(2) is bonded in a 18-coordinate geometry to three equivalent Rh(1), three equivalent Rh(4), six equivalent Rh(2), and six equivalent Rh(3) atoms. There are five inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to three equivalent La(2), three equivalent Rh(2), three equivalent Rh(3), and three equivalent Rh(4) atoms. In the second Rh site, Rh(2) is bonded to four equivalent La(2), two equivalent Rh(1), two equivalent Rh(4), and four equivalent Rh(2) atoms to form RhLa4Rh8 cuboctahedra that share corners with four equivalent Rh(2)La4Rh8 cuboctahedra, corners with twelve equivalent Rh(3)La5Rh7 cuboctahedra, edges with two equivalent Rh(2)La4Rh8 cuboctahedra, edges with eight equivalent Rh(3)La5Rh7 cuboctahedra, faces with two equivalent Rh(3)La5Rh7 cuboctahedra, and faces with eight equivalent Rh(2)La4Rh8 cuboctahedra. In the third Rh site, Rh(3) is bonded to two equivalent La(2), three equivalent La(1), one Rh(1), one Rh(4), one Rh(5), and four equivalent Rh(3) atoms to form distorted RhLa5Rh7 cuboctahedra that share corners with two equivalent Rh(5)La6Rh6 cuboctahedra, corners with six equivalent Rh(2)La4Rh8 cuboctahedra, corners with nine equivalent Rh(3)La5Rh7 cuboctahedra, edges with four equivalent Rh(2)La4Rh8 cuboctahedra, edges with four equivalent Rh(3)La5Rh7 cuboctahedra,  a faceface with one Rh(2)La4Rh8 cuboctahedra, faces with three equivalent Rh(5)La6Rh6 cuboctahedra, and faces with ten equivalent Rh(3)La5Rh7 cuboctahedra. In the fourth Rh site, Rh(4) is bonded in a 12-coordinate geometry to three equivalent La(2), three equivalent Rh(1), three equivalent Rh(2), and three equivalent Rh(3) atoms. In the fifth Rh site, Rh(5) is bonded to six equivalent La(1) and six equivalent Rh(3) atoms to form RhLa6Rh6 cuboctahedra that share corners with twelve equivalent Rh(3)La5Rh7 cuboctahedra, edges with six equivalent Rh(5)La6Rh6 cuboctahedra, and faces with eighteen equivalent Rh(3)La5Rh7 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_La2Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.305
_cell_length_b   5.305
_cell_length_c   26.372
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   642.715
_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
  La  La0  1  0.667  0.333  0.530  1.0
  La  La1  1  0.333  0.667  0.030  1.0
  La  La2  1  0.333  0.667  0.174  1.0
  La  La3  1  0.667  0.333  0.970  1.0
  La  La4  1  0.667  0.333  0.674  1.0
  La  La5  1  0.667  0.333  0.826  1.0
  La  La6  1  0.333  0.667  0.326  1.0
  La  La7  1  0.333  0.667  0.470  1.0
  Rh  Rh8  1  0.000  0.000  0.668  1.0
  Rh  Rh9  1  0.834  0.667  0.250  1.0
  Rh  Rh10  1  0.166  0.333  0.586  1.0
  Rh  Rh11  1  0.834  0.166  0.414  1.0
  Rh  Rh12  1  0.667  0.834  0.914  1.0
  Rh  Rh13  1  0.333  0.667  0.833  1.0
  Rh  Rh14  1  0.834  0.667  0.086  1.0
  Rh  Rh15  1  0.834  0.667  0.414  1.0
  Rh  Rh16  1  0.166  0.834  0.914  1.0
  Rh  Rh17  1  0.667  0.333  0.333  1.0
  Rh  Rh18  1  0.000  0.000  0.332  1.0
  Rh  Rh19  1  0.166  0.834  0.586  1.0
  Rh  Rh20  1  0.333  0.166  0.414  1.0
  Rh  Rh21  1  0.000  0.000  0.000  1.0
  Rh  Rh22  1  0.000  0.000  0.168  1.0
  Rh  Rh23  1  0.333  0.667  0.667  1.0
  Rh  Rh24  1  0.667  0.834  0.586  1.0
  Rh  Rh25  1  0.667  0.834  0.750  1.0
  Rh  Rh26  1  0.834  0.166  0.086  1.0
  Rh  Rh27  1  0.834  0.166  0.250  1.0
  Rh  Rh28  1  0.333  0.166  0.086  1.0
  Rh  Rh29  1  0.667  0.333  0.167  1.0
  Rh  Rh30  1  0.166  0.333  0.914  1.0
  Rh  Rh31  1  0.000  0.000  0.500  1.0
  Rh  Rh32  1  0.166  0.333  0.750  1.0
  Rh  Rh33  1  0.000  0.000  0.832  1.0
  Rh  Rh34  1  0.166  0.834  0.750  1.0
  Rh  Rh35  1  0.333  0.166  0.250  1.0
[/CIF]
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