The crystal structure described by Sr2MgZn2Sn2(PO4)4 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(14), one O(15), one O(5), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(16), one O(2), one O(4), and one O(8) atom. Mg(1) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(5), one O(6), and one O(8) atom. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one Sn(2), one O(13), one O(4), and one O(7) atom. In the second Zn site, Zn(2) is bonded in a 3-coordinate geometry to one O(12), one O(15), and one O(2) atom. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one O(12), one O(14), one O(3), and one O(6) atom. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to one Zn(1), one O(13), one O(7), and one O(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(11), one O(12), one O(2), and one O(9) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(1), one O(13), one O(3), and one O(5) atom. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(10), one O(14), one O(15), and one O(7) atom. In the fourth P site, P(4) is bonded in a tetrahedral geometry to one O(16), one O(4), one O(6), and one O(8) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Mg(1), and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(2), one Zn(2), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Mg(1), one Sn(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(2), one Zn(1), and one P(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Sr(1), one Mg(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sn(1), and one P(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Zn(1), one Sn(2), and one P(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), and one P(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Sr(1), one Sn(2), and one P(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Sr(2) and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Zn(2), one Sn(1), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Zn(1), one Sn(2), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Sr(1), one Sn(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Sr(1), one Zn(2), and one P(3) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Sr(2) and one P(4) atom. is represented by the CIF card [CIF]
data_Sr2MgZn2Sn2(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.568
_cell_length_b   7.755
_cell_length_c   10.102
_cell_angle_alpha   112.669
_cell_angle_beta   96.098
_cell_angle_gamma   91.715
_symmetry_Int_Tables_number   1
_cell_volume   399.011
_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  0.224  0.860  0.075  1.0
  Sr  Sr1  1  0.789  0.194  0.967  1.0
  Mg  Mg2  1  0.226  0.697  0.737  1.0
  Zn  Zn3  1  0.001  0.300  0.596  1.0
  Zn  Zn4  1  0.911  0.631  0.336  1.0
  Sn  Sn5  1  0.540  0.829  0.494  1.0
  Sn  Sn6  1  0.408  0.204  0.496  1.0
  P  P7  1  0.360  0.397  0.237  1.0
  P  P8  1  0.690  0.616  0.769  1.0
  P  P9  1  0.783  0.957  0.256  1.0
  P  P10  1  0.212  0.049  0.749  1.0
  O  O11  1  0.953  0.639  0.843  1.0
  O  O12  1  0.630  0.438  0.218  1.0
  O  O13  1  0.630  0.775  0.716  1.0
  O  O14  1  0.989  0.158  0.733  1.0
  O  O15  1  0.484  0.608  0.857  1.0
  O  O16  1  0.198  0.855  0.610  1.0
  O  O17  1  0.804  0.135  0.400  1.0
  O  O18  1  0.187  0.977  0.873  1.0
  O  O19  1  0.346  0.226  0.283  1.0
  O  O20  1  0.806  0.004  0.122  1.0
  O  O21  1  0.187  0.359  0.100  1.0
  O  O22  1  0.272  0.574  0.363  1.0
  O  O23  1  0.687  0.425  0.629  1.0
  O  O24  1  0.544  0.844  0.242  1.0
  O  O25  1  0.996  0.830  0.265  1.0
  O  O26  1  0.453  0.159  0.770  1.0
[/CIF]
.
The crystal structure described by Sr2MgZn2Sn2(PO4)4 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(14), one O(15), one O(5), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(16), one O(2), one O(4), and one O(8) atom. Mg(1) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(5), one O(6), and one O(8) atom. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one Sn(2), one O(13), one O(4), and one O(7) atom. In the second Zn site, Zn(2) is bonded in a 3-coordinate geometry to one O(12), one O(15), and one O(2) atom. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one O(12), one O(14), one O(3), and one O(6) atom. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to one Zn(1), one O(13), one O(7), and one O(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(11), one O(12), one O(2), and one O(9) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(1), one O(13), one O(3), and one O(5) atom. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(10), one O(14), one O(15), and one O(7) atom. In the fourth P site, P(4) is bonded in a tetrahedral geometry to one O(16), one O(4), one O(6), and one O(8) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Mg(1), and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(2), one Zn(2), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Mg(1), one Sn(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(2), one Zn(1), and one P(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Sr(1), one Mg(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sn(1), and one P(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Zn(1), one Sn(2), and one P(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), and one P(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Sr(1), one Sn(2), and one P(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Sr(2) and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Zn(2), one Sn(1), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Zn(1), one Sn(2), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Sr(1), one Sn(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Sr(1), one Zn(2), and one P(3) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Sr(2) and one P(4) atom. is represented by the CIF card [CIF]
data_Sr2MgZn2Sn2(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.568
_cell_length_b   7.755
_cell_length_c   10.102
_cell_angle_alpha   112.669
_cell_angle_beta   96.098
_cell_angle_gamma   91.715
_symmetry_Int_Tables_number   1
_cell_volume   399.011
_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  0.224  0.860  0.075  1.0
  Sr  Sr1  1  0.789  0.194  0.967  1.0
  Mg  Mg2  1  0.226  0.697  0.737  1.0
  Zn  Zn3  1  0.001  0.300  0.596  1.0
  Zn  Zn4  1  0.911  0.631  0.336  1.0
  Sn  Sn5  1  0.540  0.829  0.494  1.0
  Sn  Sn6  1  0.408  0.204  0.496  1.0
  P  P7  1  0.360  0.397  0.237  1.0
  P  P8  1  0.690  0.616  0.769  1.0
  P  P9  1  0.783  0.957  0.256  1.0
  P  P10  1  0.212  0.049  0.749  1.0
  O  O11  1  0.953  0.639  0.843  1.0
  O  O12  1  0.630  0.438  0.218  1.0
  O  O13  1  0.630  0.775  0.716  1.0
  O  O14  1  0.989  0.158  0.733  1.0
  O  O15  1  0.484  0.608  0.857  1.0
  O  O16  1  0.198  0.855  0.610  1.0
  O  O17  1  0.804  0.135  0.400  1.0
  O  O18  1  0.187  0.977  0.873  1.0
  O  O19  1  0.346  0.226  0.283  1.0
  O  O20  1  0.806  0.004  0.122  1.0
  O  O21  1  0.187  0.359  0.100  1.0
  O  O22  1  0.272  0.574  0.363  1.0
  O  O23  1  0.687  0.425  0.629  1.0
  O  O24  1  0.544  0.844  0.242  1.0
  O  O25  1  0.996  0.830  0.265  1.0
  O  O26  1  0.453  0.159  0.770  1.0
[/CIF]
.