The material described by Sm7Co6Al7 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 11-coordinate geometry to two equivalent Co(1), four equivalent Co(2), one Al(1), two equivalent Al(2), and two equivalent Al(3) atoms. In the second Sm site, Sm(2) is bonded in a 11-coordinate geometry to two equivalent Co(1), two equivalent Co(2), one Al(2), two equivalent Al(1), and four equivalent Al(3) atoms. In the third Sm site, Sm(3) is bonded in a distorted body-centered cubic geometry to eight equivalent Al(3) atoms. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), one Co(2), two equivalent Al(1), and two equivalent Al(3) atoms. In the second Co site, Co(1) is bonded in a 9-coordinate geometry to two equivalent Sm(1), four equivalent Sm(2), one Al(1), and two equivalent Al(2) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to one Sm(1), four equivalent Sm(2), one Co(1), four equivalent Co(2), and two equivalent Al(3) atoms to form distorted AlSm5Al2Co5 cuboctahedra that share corners with two equivalent Al(2)Sm8Co4 cuboctahedra, faces with two equivalent Al(1)Sm5Al2Co5 cuboctahedra, and faces with two equivalent Al(2)Sm8Co4 cuboctahedra. In the second Al site, Al(2) is bonded to four equivalent Sm(1), four equivalent Sm(2), and four equivalent Co(1) atoms to form distorted AlSm8Co4 cuboctahedra that share corners with four equivalent Al(1)Sm5Al2Co5 cuboctahedra, faces with two equivalent Al(2)Sm8Co4 cuboctahedra, and faces with four equivalent Al(1)Sm5Al2Co5 cuboctahedra. In the third Al site, Al(3) is bonded in a 10-coordinate geometry to one Sm(1), two equivalent Sm(3), four equivalent Sm(2), two equivalent Co(2), and one Al(1) atom. is represented by the CIF card [CIF]
data_Sm7Al7Co6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.143
_cell_length_b   13.589
_cell_length_c   13.589
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   765.040
_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
  Sm  Sm0  1  0.500  0.631  0.131  1.0
  Sm  Sm1  1  0.500  0.369  0.869  1.0
  Sm  Sm2  1  0.500  0.869  0.631  1.0
  Sm  Sm3  1  0.500  0.131  0.369  1.0
  Sm  Sm4  1  0.000  0.261  0.048  1.0
  Sm  Sm5  1  0.000  0.739  0.952  1.0
  Sm  Sm6  1  0.000  0.952  0.261  1.0
  Sm  Sm7  1  0.000  0.239  0.548  1.0
  Sm  Sm8  1  0.000  0.048  0.739  1.0
  Sm  Sm9  1  0.000  0.761  0.452  1.0
  Sm  Sm10  1  0.000  0.548  0.761  1.0
  Sm  Sm11  1  0.000  0.452  0.239  1.0
  Sm  Sm12  1  0.000  0.000  0.000  1.0
  Sm  Sm13  1  0.000  0.500  0.500  1.0
  Al  Al14  1  0.500  0.214  0.714  1.0
  Al  Al15  1  0.500  0.786  0.286  1.0
  Al  Al16  1  0.500  0.286  0.214  1.0
  Al  Al17  1  0.500  0.714  0.786  1.0
  Al  Al18  1  0.000  0.000  0.500  1.0
  Al  Al19  1  0.000  0.500  0.000  1.0
  Al  Al20  1  0.500  0.098  0.139  1.0
  Al  Al21  1  0.500  0.902  0.861  1.0
  Al  Al22  1  0.500  0.861  0.098  1.0
  Al  Al23  1  0.500  0.402  0.639  1.0
  Al  Al24  1  0.500  0.139  0.902  1.0
  Al  Al25  1  0.500  0.598  0.361  1.0
  Al  Al26  1  0.500  0.639  0.598  1.0
  Al  Al27  1  0.500  0.361  0.402  1.0
  Co  Co28  1  0.500  0.073  0.573  1.0
  Co  Co29  1  0.500  0.927  0.427  1.0
  Co  Co30  1  0.500  0.427  0.073  1.0
  Co  Co31  1  0.500  0.573  0.927  1.0
  Co  Co32  1  0.000  0.164  0.212  1.0
  Co  Co33  1  0.000  0.836  0.788  1.0
  Co  Co34  1  0.000  0.788  0.164  1.0
  Co  Co35  1  0.000  0.336  0.712  1.0
  Co  Co36  1  0.000  0.212  0.836  1.0
  Co  Co37  1  0.000  0.664  0.288  1.0
  Co  Co38  1  0.000  0.712  0.664  1.0
  Co  Co39  1  0.000  0.288  0.336  1.0
[/CIF]
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The material described by Sm7Co6Al7 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 11-coordinate geometry to two equivalent Co(1), four equivalent Co(2), one Al(1), two equivalent Al(2), and two equivalent Al(3) atoms. In the second Sm site, Sm(2) is bonded in a 11-coordinate geometry to two equivalent Co(1), two equivalent Co(2), one Al(2), two equivalent Al(1), and four equivalent Al(3) atoms. In the third Sm site, Sm(3) is bonded in a distorted body-centered cubic geometry to eight equivalent Al(3) atoms. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), one Co(2), two equivalent Al(1), and two equivalent Al(3) atoms. In the second Co site, Co(1) is bonded in a 9-coordinate geometry to two equivalent Sm(1), four equivalent Sm(2), one Al(1), and two equivalent Al(2) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to one Sm(1), four equivalent Sm(2), one Co(1), four equivalent Co(2), and two equivalent Al(3) atoms to form distorted AlSm5Al2Co5 cuboctahedra that share corners with two equivalent Al(2)Sm8Co4 cuboctahedra, faces with two equivalent Al(1)Sm5Al2Co5 cuboctahedra, and faces with two equivalent Al(2)Sm8Co4 cuboctahedra. In the second Al site, Al(2) is bonded to four equivalent Sm(1), four equivalent Sm(2), and four equivalent Co(1) atoms to form distorted AlSm8Co4 cuboctahedra that share corners with four equivalent Al(1)Sm5Al2Co5 cuboctahedra, faces with two equivalent Al(2)Sm8Co4 cuboctahedra, and faces with four equivalent Al(1)Sm5Al2Co5 cuboctahedra. In the third Al site, Al(3) is bonded in a 10-coordinate geometry to one Sm(1), two equivalent Sm(3), four equivalent Sm(2), two equivalent Co(2), and one Al(1) atom. is represented by the CIF card [CIF]
data_Sm7Al7Co6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.143
_cell_length_b   13.589
_cell_length_c   13.589
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   765.040
_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
  Sm  Sm0  1  0.500  0.631  0.131  1.0
  Sm  Sm1  1  0.500  0.369  0.869  1.0
  Sm  Sm2  1  0.500  0.869  0.631  1.0
  Sm  Sm3  1  0.500  0.131  0.369  1.0
  Sm  Sm4  1  0.000  0.261  0.048  1.0
  Sm  Sm5  1  0.000  0.739  0.952  1.0
  Sm  Sm6  1  0.000  0.952  0.261  1.0
  Sm  Sm7  1  0.000  0.239  0.548  1.0
  Sm  Sm8  1  0.000  0.048  0.739  1.0
  Sm  Sm9  1  0.000  0.761  0.452  1.0
  Sm  Sm10  1  0.000  0.548  0.761  1.0
  Sm  Sm11  1  0.000  0.452  0.239  1.0
  Sm  Sm12  1  0.000  0.000  0.000  1.0
  Sm  Sm13  1  0.000  0.500  0.500  1.0
  Al  Al14  1  0.500  0.214  0.714  1.0
  Al  Al15  1  0.500  0.786  0.286  1.0
  Al  Al16  1  0.500  0.286  0.214  1.0
  Al  Al17  1  0.500  0.714  0.786  1.0
  Al  Al18  1  0.000  0.000  0.500  1.0
  Al  Al19  1  0.000  0.500  0.000  1.0
  Al  Al20  1  0.500  0.098  0.139  1.0
  Al  Al21  1  0.500  0.902  0.861  1.0
  Al  Al22  1  0.500  0.861  0.098  1.0
  Al  Al23  1  0.500  0.402  0.639  1.0
  Al  Al24  1  0.500  0.139  0.902  1.0
  Al  Al25  1  0.500  0.598  0.361  1.0
  Al  Al26  1  0.500  0.639  0.598  1.0
  Al  Al27  1  0.500  0.361  0.402  1.0
  Co  Co28  1  0.500  0.073  0.573  1.0
  Co  Co29  1  0.500  0.927  0.427  1.0
  Co  Co30  1  0.500  0.427  0.073  1.0
  Co  Co31  1  0.500  0.573  0.927  1.0
  Co  Co32  1  0.000  0.164  0.212  1.0
  Co  Co33  1  0.000  0.836  0.788  1.0
  Co  Co34  1  0.000  0.788  0.164  1.0
  Co  Co35  1  0.000  0.336  0.712  1.0
  Co  Co36  1  0.000  0.212  0.836  1.0
  Co  Co37  1  0.000  0.664  0.288  1.0
  Co  Co38  1  0.000  0.712  0.664  1.0
  Co  Co39  1  0.000  0.288  0.336  1.0
[/CIF]
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