The compound described by SmCo4Ag crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded in a distorted hexagonal planar geometry to three equivalent Co(1), twelve equivalent Co(2), and three equivalent Ag(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent Sm(1), six equivalent Co(2), and three equivalent Ag(1) atoms to form distorted CoSm3Co6Ag3 cuboctahedra that share corners with nine equivalent Ag(1)Sm3Co9 cuboctahedra, corners with twelve equivalent Co(2)Sm4Co6Ag2 cuboctahedra, edges with six equivalent Co(1)Sm3Co6Ag3 cuboctahedra, faces with two equivalent Co(1)Sm3Co6Ag3 cuboctahedra, faces with three equivalent Ag(1)Sm3Co9 cuboctahedra, and faces with eighteen equivalent Co(2)Sm4Co6Ag2 cuboctahedra. In the second Co site, Co(2) is bonded to four equivalent Sm(1), two equivalent Co(1), four equivalent Co(2), and two equivalent Ag(1) atoms to form CoSm4Co6Ag2 cuboctahedra that share corners with four equivalent Co(1)Sm3Co6Ag3 cuboctahedra, corners with four equivalent Ag(1)Sm3Co9 cuboctahedra, corners with sixteen equivalent Co(2)Sm4Co6Ag2 cuboctahedra, edges with ten equivalent Co(2)Sm4Co6Ag2 cuboctahedra, faces with six equivalent Co(1)Sm3Co6Ag3 cuboctahedra, faces with six equivalent Ag(1)Sm3Co9 cuboctahedra, and faces with ten equivalent Co(2)Sm4Co6Ag2 cuboctahedra. Ag(1) is bonded to three equivalent Sm(1), three equivalent Co(1), and six equivalent Co(2) atoms to form distorted AgSm3Co9 cuboctahedra that share corners with nine equivalent Co(1)Sm3Co6Ag3 cuboctahedra, corners with twelve equivalent Co(2)Sm4Co6Ag2 cuboctahedra, edges with six equivalent Ag(1)Sm3Co9 cuboctahedra, faces with two equivalent Ag(1)Sm3Co9 cuboctahedra, faces with three equivalent Co(1)Sm3Co6Ag3 cuboctahedra, and faces with eighteen equivalent Co(2)Sm4Co6Ag2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmCo4Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.140
_cell_length_b   5.102
_cell_length_c   5.104
_cell_angle_alpha   60.014
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   93.401
_cell_formula_units_Z   1
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  0.000  0.000  1.000  1.0
  Co  Co1  1  0.000  0.667  0.667  1.0
  Co  Co2  1  0.500  0.509  0.509  1.0
  Co  Co3  1  0.500  0.509  0.982  1.0
  Co  Co4  1  0.500  0.982  0.509  1.0
  Ag  Ag5  1  0.000  0.333  0.333  1.0
[/CIF]
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The compound described by SmCo4Ag crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded in a distorted hexagonal planar geometry to three equivalent Co(1), twelve equivalent Co(2), and three equivalent Ag(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent Sm(1), six equivalent Co(2), and three equivalent Ag(1) atoms to form distorted CoSm3Co6Ag3 cuboctahedra that share corners with nine equivalent Ag(1)Sm3Co9 cuboctahedra, corners with twelve equivalent Co(2)Sm4Co6Ag2 cuboctahedra, edges with six equivalent Co(1)Sm3Co6Ag3 cuboctahedra, faces with two equivalent Co(1)Sm3Co6Ag3 cuboctahedra, faces with three equivalent Ag(1)Sm3Co9 cuboctahedra, and faces with eighteen equivalent Co(2)Sm4Co6Ag2 cuboctahedra. In the second Co site, Co(2) is bonded to four equivalent Sm(1), two equivalent Co(1), four equivalent Co(2), and two equivalent Ag(1) atoms to form CoSm4Co6Ag2 cuboctahedra that share corners with four equivalent Co(1)Sm3Co6Ag3 cuboctahedra, corners with four equivalent Ag(1)Sm3Co9 cuboctahedra, corners with sixteen equivalent Co(2)Sm4Co6Ag2 cuboctahedra, edges with ten equivalent Co(2)Sm4Co6Ag2 cuboctahedra, faces with six equivalent Co(1)Sm3Co6Ag3 cuboctahedra, faces with six equivalent Ag(1)Sm3Co9 cuboctahedra, and faces with ten equivalent Co(2)Sm4Co6Ag2 cuboctahedra. Ag(1) is bonded to three equivalent Sm(1), three equivalent Co(1), and six equivalent Co(2) atoms to form distorted AgSm3Co9 cuboctahedra that share corners with nine equivalent Co(1)Sm3Co6Ag3 cuboctahedra, corners with twelve equivalent Co(2)Sm4Co6Ag2 cuboctahedra, edges with six equivalent Ag(1)Sm3Co9 cuboctahedra, faces with two equivalent Ag(1)Sm3Co9 cuboctahedra, faces with three equivalent Co(1)Sm3Co6Ag3 cuboctahedra, and faces with eighteen equivalent Co(2)Sm4Co6Ag2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmCo4Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.140
_cell_length_b   5.102
_cell_length_c   5.104
_cell_angle_alpha   60.014
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   93.401
_cell_formula_units_Z   1
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  0.000  0.000  1.000  1.0
  Co  Co1  1  0.000  0.667  0.667  1.0
  Co  Co2  1  0.500  0.509  0.509  1.0
  Co  Co3  1  0.500  0.509  0.982  1.0
  Co  Co4  1  0.500  0.982  0.509  1.0
  Ag  Ag5  1  0.000  0.333  0.333  1.0
[/CIF]
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