The structure described by Sm2NiGa9Ge2 crystallizes in the tetragonal P4/nmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 14-coordinate geometry to two equivalent Ga(3); four Ga(1,1,1); four equivalent Ga(2); two equivalent Ge(1); and two equivalent Ge(2) atoms. In the second Sm site, Sm(1) is bonded in a 14-coordinate geometry to two equivalent Ga(3); four Ga(1,1,1); four equivalent Ga(2); two equivalent Ge(1); and two equivalent Ge(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a body-centered cubic geometry to eight Ga(1,1,1,1) atoms. In the second Ni site, Ni(1) is bonded in a body-centered cubic geometry to eight Ga(1,1,1,1) atoms. There are six inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1,1); one Ge(1); and one Ge(2) atom. In the second Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1,1); one Ge(1); and one Ge(2) atom. In the third Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1); one Ge(1); and one Ge(2) atom. In the fourth Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1,1); one Ge(1); and one Ge(2) atom. In the fifth Ga site, Ga(2) is bonded in a 6-coordinate geometry to two Sm(1,1); one Ga(3); and three equivalent Ga(2) atoms. In the sixth Ga site, Ga(3) is bonded in a 9-coordinate geometry to four Sm(1,1); four equivalent Ga(2); and one Ge(1) atom. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Ga(3); and four Ga(1,1,1) atoms. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Ga(3); and four Ga(1,1,1) atoms. In the third Ge site, Ge(2) is bonded in a 8-coordinate geometry to four Sm(1,1) and four Ga(1,1,1) atoms. In the fourth Ge site, Ge(2) is bonded in a 8-coordinate geometry to four Sm(1,1) and four Ga(1,1,1) atoms. is represented by the CIF card [CIF]
data_Sm2Ga9NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.974
_cell_length_b   5.974
_cell_length_c   15.208
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   542.740
_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  0.000  0.000  0.749  1.0
  Sm  Sm1  1  0.500  0.500  0.749  1.0
  Sm  Sm2  1  0.500  0.500  0.251  1.0
  Sm  Sm3  1  0.000  0.000  0.251  1.0
  Ga  Ga4  1  0.768  0.268  0.914  1.0
  Ga  Ga5  1  0.232  0.268  0.914  1.0
  Ga  Ga6  1  0.768  0.732  0.914  1.0
  Ga  Ga7  1  0.232  0.732  0.914  1.0
  Ga  Ga8  1  0.732  0.232  0.086  1.0
  Ga  Ga9  1  0.268  0.232  0.086  1.0
  Ga  Ga10  1  0.732  0.768  0.086  1.0
  Ga  Ga11  1  0.268  0.768  0.086  1.0
  Ga  Ga12  1  0.779  0.279  0.583  1.0
  Ga  Ga13  1  0.221  0.279  0.583  1.0
  Ga  Ga14  1  0.779  0.721  0.583  1.0
  Ga  Ga15  1  0.221  0.721  0.583  1.0
  Ga  Ga16  1  0.721  0.221  0.417  1.0
  Ga  Ga17  1  0.279  0.221  0.417  1.0
  Ga  Ga18  1  0.721  0.779  0.417  1.0
  Ga  Ga19  1  0.279  0.779  0.417  1.0
  Ga  Ga20  1  0.000  0.500  0.343  1.0
  Ga  Ga21  1  0.500  0.000  0.657  1.0
  Ni  Ni22  1  0.000  0.000  0.000  1.0
  Ni  Ni23  1  0.500  0.500  0.000  1.0
  Ge  Ge24  1  0.000  0.500  0.180  1.0
  Ge  Ge25  1  0.500  0.000  0.820  1.0
  Ge  Ge26  1  0.000  0.500  0.776  1.0
  Ge  Ge27  1  0.500  0.000  0.224  1.0
[/CIF]
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The structure described by Sm2NiGa9Ge2 crystallizes in the tetragonal P4/nmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 14-coordinate geometry to two equivalent Ga(3); four Ga(1,1,1); four equivalent Ga(2); two equivalent Ge(1); and two equivalent Ge(2) atoms. In the second Sm site, Sm(1) is bonded in a 14-coordinate geometry to two equivalent Ga(3); four Ga(1,1,1); four equivalent Ga(2); two equivalent Ge(1); and two equivalent Ge(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a body-centered cubic geometry to eight Ga(1,1,1,1) atoms. In the second Ni site, Ni(1) is bonded in a body-centered cubic geometry to eight Ga(1,1,1,1) atoms. There are six inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1,1); one Ge(1); and one Ge(2) atom. In the second Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1,1); one Ge(1); and one Ge(2) atom. In the third Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1); one Ge(1); and one Ge(2) atom. In the fourth Ga site, Ga(1) is bonded in a 9-coordinate geometry to two Sm(1,1); two Ni(1,1); three Ga(1,1,1); one Ge(1); and one Ge(2) atom. In the fifth Ga site, Ga(2) is bonded in a 6-coordinate geometry to two Sm(1,1); one Ga(3); and three equivalent Ga(2) atoms. In the sixth Ga site, Ga(3) is bonded in a 9-coordinate geometry to four Sm(1,1); four equivalent Ga(2); and one Ge(1) atom. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Ga(3); and four Ga(1,1,1) atoms. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to four Sm(1,1); one Ga(3); and four Ga(1,1,1) atoms. In the third Ge site, Ge(2) is bonded in a 8-coordinate geometry to four Sm(1,1) and four Ga(1,1,1) atoms. In the fourth Ge site, Ge(2) is bonded in a 8-coordinate geometry to four Sm(1,1) and four Ga(1,1,1) atoms. is represented by the CIF card [CIF]
data_Sm2Ga9NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.974
_cell_length_b   5.974
_cell_length_c   15.208
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   542.740
_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  0.000  0.000  0.749  1.0
  Sm  Sm1  1  0.500  0.500  0.749  1.0
  Sm  Sm2  1  0.500  0.500  0.251  1.0
  Sm  Sm3  1  0.000  0.000  0.251  1.0
  Ga  Ga4  1  0.768  0.268  0.914  1.0
  Ga  Ga5  1  0.232  0.268  0.914  1.0
  Ga  Ga6  1  0.768  0.732  0.914  1.0
  Ga  Ga7  1  0.232  0.732  0.914  1.0
  Ga  Ga8  1  0.732  0.232  0.086  1.0
  Ga  Ga9  1  0.268  0.232  0.086  1.0
  Ga  Ga10  1  0.732  0.768  0.086  1.0
  Ga  Ga11  1  0.268  0.768  0.086  1.0
  Ga  Ga12  1  0.779  0.279  0.583  1.0
  Ga  Ga13  1  0.221  0.279  0.583  1.0
  Ga  Ga14  1  0.779  0.721  0.583  1.0
  Ga  Ga15  1  0.221  0.721  0.583  1.0
  Ga  Ga16  1  0.721  0.221  0.417  1.0
  Ga  Ga17  1  0.279  0.221  0.417  1.0
  Ga  Ga18  1  0.721  0.779  0.417  1.0
  Ga  Ga19  1  0.279  0.779  0.417  1.0
  Ga  Ga20  1  0.000  0.500  0.343  1.0
  Ga  Ga21  1  0.500  0.000  0.657  1.0
  Ni  Ni22  1  0.000  0.000  0.000  1.0
  Ni  Ni23  1  0.500  0.500  0.000  1.0
  Ge  Ge24  1  0.000  0.500  0.180  1.0
  Ge  Ge25  1  0.500  0.000  0.820  1.0
  Ge  Ge26  1  0.000  0.500  0.776  1.0
  Ge  Ge27  1  0.500  0.000  0.224  1.0
[/CIF]
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