The material structure described by Sr2MgCu(PO4)2 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Mg(1) is bonded in a linear geometry to two equivalent O(2) atoms. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. P(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Cu(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), one Mg(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Sr(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2MgCu(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.619
_cell_length_b   6.217
_cell_length_c   6.774
_cell_angle_alpha   106.144
_cell_angle_beta   90.000
_cell_angle_gamma   116.866
_symmetry_Int_Tables_number   1
_cell_volume   200.600
_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
  Sr  Sr0  1  0.168  0.337  0.265  1.0
  Sr  Sr1  1  0.832  0.663  0.735  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Cu  Cu3  1  0.500  0.000  0.500  1.0
  P  P4  1  0.834  0.669  0.260  1.0
  P  P5  1  0.166  0.331  0.740  1.0
  O  O6  1  0.370  0.291  0.597  1.0
  O  O7  1  0.079  0.709  0.403  1.0
  O  O8  1  0.630  0.709  0.403  1.0
  O  O9  1  0.921  0.291  0.597  1.0
  O  O10  1  0.692  0.384  0.115  1.0
  O  O11  1  0.074  0.148  0.871  1.0
  O  O12  1  0.926  0.852  0.129  1.0
  O  O13  1  0.308  0.616  0.885  1.0
[/CIF]
.
The material structure described by Sr2MgCu(PO4)2 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Mg(1) is bonded in a linear geometry to two equivalent O(2) atoms. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. P(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Cu(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), one Mg(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Sr(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2MgCu(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.619
_cell_length_b   6.217
_cell_length_c   6.774
_cell_angle_alpha   106.144
_cell_angle_beta   90.000
_cell_angle_gamma   116.866
_symmetry_Int_Tables_number   1
_cell_volume   200.600
_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
  Sr  Sr0  1  0.168  0.337  0.265  1.0
  Sr  Sr1  1  0.832  0.663  0.735  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Cu  Cu3  1  0.500  0.000  0.500  1.0
  P  P4  1  0.834  0.669  0.260  1.0
  P  P5  1  0.166  0.331  0.740  1.0
  O  O6  1  0.370  0.291  0.597  1.0
  O  O7  1  0.079  0.709  0.403  1.0
  O  O8  1  0.630  0.709  0.403  1.0
  O  O9  1  0.921  0.291  0.597  1.0
  O  O10  1  0.692  0.384  0.115  1.0
  O  O11  1  0.074  0.148  0.871  1.0
  O  O12  1  0.926  0.852  0.129  1.0
  O  O13  1  0.308  0.616  0.885  1.0
[/CIF]
.