The material described by SrCu9Ge4 crystallizes in the tetragonal I4/mcm space group. Sr(1) is bonded in a 24-coordinate geometry to eight equivalent Cu(1), eight equivalent Cu(2), and eight equivalent Ge(1) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cu(3), two equivalent Cu(2), three equivalent Cu(1), and four equivalent Ge(1) atoms. In the second Cu site, Cu(2) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cu(3), two equivalent Cu(1), three equivalent Cu(2), and four equivalent Ge(1) atoms. In the third Cu site, Cu(3) is bonded in a cuboctahedral geometry to four equivalent Cu(1), four equivalent Cu(2), and four equivalent Ge(1) atoms. Ge(1) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cu(3), four equivalent Cu(1), four equivalent Cu(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_SrCu9Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.386
_cell_length_b   8.386
_cell_length_c   8.386
_cell_angle_alpha   120.577
_cell_angle_beta   120.577
_cell_angle_gamma   89.004
_symmetry_Int_Tables_number   1
_cell_volume   413.369
_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
  Sr  Sr0  1  0.250  0.250  0.000  1.0
  Sr  Sr1  1  0.750  0.750  0.000  1.0
  Cu  Cu2  1  0.061  0.561  0.265  1.0
  Cu  Cu3  1  0.704  0.204  0.265  1.0
  Cu  Cu4  1  0.939  0.439  0.735  1.0
  Cu  Cu5  1  0.439  0.704  0.500  1.0
  Cu  Cu6  1  0.204  0.939  0.500  1.0
  Cu  Cu7  1  0.561  0.296  0.500  1.0
  Cu  Cu8  1  0.796  0.061  0.500  1.0
  Cu  Cu9  1  0.296  0.796  0.735  1.0
  Cu  Cu10  1  0.438  0.297  0.735  1.0
  Cu  Cu11  1  0.797  0.938  0.735  1.0
  Cu  Cu12  1  0.000  0.500  0.500  1.0
  Cu  Cu13  1  0.500  0.000  0.500  1.0
  Cu  Cu14  1  0.562  0.703  0.265  1.0
  Cu  Cu15  1  0.703  0.438  0.141  1.0
  Cu  Cu16  1  0.297  0.562  0.859  1.0
  Cu  Cu17  1  0.938  0.203  0.141  1.0
  Cu  Cu18  1  0.062  0.797  0.859  1.0
  Cu  Cu19  1  0.203  0.062  0.265  1.0
  Ge  Ge20  1  0.801  0.301  0.858  1.0
  Ge  Ge21  1  0.557  0.057  0.858  1.0
  Ge  Ge22  1  0.199  0.699  0.142  1.0
  Ge  Ge23  1  0.699  0.557  0.500  1.0
  Ge  Ge24  1  0.057  0.199  0.500  1.0
  Ge  Ge25  1  0.301  0.443  0.500  1.0
  Ge  Ge26  1  0.943  0.801  0.500  1.0
  Ge  Ge27  1  0.443  0.943  0.142  1.0
[/CIF]
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The material described by SrCu9Ge4 crystallizes in the tetragonal I4/mcm space group. Sr(1) is bonded in a 24-coordinate geometry to eight equivalent Cu(1), eight equivalent Cu(2), and eight equivalent Ge(1) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cu(3), two equivalent Cu(2), three equivalent Cu(1), and four equivalent Ge(1) atoms. In the second Cu site, Cu(2) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cu(3), two equivalent Cu(1), three equivalent Cu(2), and four equivalent Ge(1) atoms. In the third Cu site, Cu(3) is bonded in a cuboctahedral geometry to four equivalent Cu(1), four equivalent Cu(2), and four equivalent Ge(1) atoms. Ge(1) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cu(3), four equivalent Cu(1), four equivalent Cu(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_SrCu9Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.386
_cell_length_b   8.386
_cell_length_c   8.386
_cell_angle_alpha   120.577
_cell_angle_beta   120.577
_cell_angle_gamma   89.004
_symmetry_Int_Tables_number   1
_cell_volume   413.369
_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
  Sr  Sr0  1  0.250  0.250  0.000  1.0
  Sr  Sr1  1  0.750  0.750  0.000  1.0
  Cu  Cu2  1  0.061  0.561  0.265  1.0
  Cu  Cu3  1  0.704  0.204  0.265  1.0
  Cu  Cu4  1  0.939  0.439  0.735  1.0
  Cu  Cu5  1  0.439  0.704  0.500  1.0
  Cu  Cu6  1  0.204  0.939  0.500  1.0
  Cu  Cu7  1  0.561  0.296  0.500  1.0
  Cu  Cu8  1  0.796  0.061  0.500  1.0
  Cu  Cu9  1  0.296  0.796  0.735  1.0
  Cu  Cu10  1  0.438  0.297  0.735  1.0
  Cu  Cu11  1  0.797  0.938  0.735  1.0
  Cu  Cu12  1  0.000  0.500  0.500  1.0
  Cu  Cu13  1  0.500  0.000  0.500  1.0
  Cu  Cu14  1  0.562  0.703  0.265  1.0
  Cu  Cu15  1  0.703  0.438  0.141  1.0
  Cu  Cu16  1  0.297  0.562  0.859  1.0
  Cu  Cu17  1  0.938  0.203  0.141  1.0
  Cu  Cu18  1  0.062  0.797  0.859  1.0
  Cu  Cu19  1  0.203  0.062  0.265  1.0
  Ge  Ge20  1  0.801  0.301  0.858  1.0
  Ge  Ge21  1  0.557  0.057  0.858  1.0
  Ge  Ge22  1  0.199  0.699  0.142  1.0
  Ge  Ge23  1  0.699  0.557  0.500  1.0
  Ge  Ge24  1  0.057  0.199  0.500  1.0
  Ge  Ge25  1  0.301  0.443  0.500  1.0
  Ge  Ge26  1  0.943  0.801  0.500  1.0
  Ge  Ge27  1  0.443  0.943  0.142  1.0
[/CIF]
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