The material structure described by SrMg6Cu crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Cu(1) atoms. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to two equivalent Sr(1), two equivalent Mg(3), two equivalent Mg(4), and one Cu(1) atom. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Mg(4), four equivalent Mg(3), and two equivalent Cu(1) atoms. In the third Mg site, Mg(3) is bonded in a 11-coordinate geometry to two equivalent Sr(1), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), and two equivalent Cu(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Sr(1), two equivalent Mg(2), two equivalent Mg(3), and four equivalent Mg(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to two equivalent Sr(1), two equivalent Mg(1), two equivalent Mg(2), and four equivalent Mg(3) atoms. is represented by the CIF card [CIF]
data_SrMg6Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.886
_cell_length_b   6.317
_cell_length_c   7.150
_cell_angle_alpha   116.214
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   197.972
_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
  Cu  Cu0  1  0.000  0.880  0.760  1.0
  Mg  Mg1  1  1.000  0.807  0.111  1.0
  Mg  Mg2  1  1.000  0.304  0.111  1.0
  Mg  Mg3  1  0.000  0.309  0.618  1.0
  Mg  Mg4  1  0.500  0.676  0.854  1.0
  Mg  Mg5  1  0.500  0.178  0.854  1.0
  Mg  Mg6  1  0.500  0.143  0.287  1.0
  Sr  Sr7  1  0.500  0.703  0.406  1.0
[/CIF]
.
The material structure described by SrMg6Cu crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Cu(1) atoms. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to two equivalent Sr(1), two equivalent Mg(3), two equivalent Mg(4), and one Cu(1) atom. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Mg(4), four equivalent Mg(3), and two equivalent Cu(1) atoms. In the third Mg site, Mg(3) is bonded in a 11-coordinate geometry to two equivalent Sr(1), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), and two equivalent Cu(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Sr(1), two equivalent Mg(2), two equivalent Mg(3), and four equivalent Mg(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to two equivalent Sr(1), two equivalent Mg(1), two equivalent Mg(2), and four equivalent Mg(3) atoms. is represented by the CIF card [CIF]
data_SrMg6Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.886
_cell_length_b   6.317
_cell_length_c   7.150
_cell_angle_alpha   116.214
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   197.972
_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
  Cu  Cu0  1  0.000  0.880  0.760  1.0
  Mg  Mg1  1  1.000  0.807  0.111  1.0
  Mg  Mg2  1  1.000  0.304  0.111  1.0
  Mg  Mg3  1  0.000  0.309  0.618  1.0
  Mg  Mg4  1  0.500  0.676  0.854  1.0
  Mg  Mg5  1  0.500  0.178  0.854  1.0
  Mg  Mg6  1  0.500  0.143  0.287  1.0
  Sr  Sr7  1  0.500  0.703  0.406  1.0
[/CIF]
.