data_Mg(SbP2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.33
_cell_length_b   9.33
_cell_length_c   8.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg(SbP2)2
_chemical_formula_sum   'Mg4 Sb8 P16'
_cell_volume   771.97
_cell_formula_units_Z   4
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
  Mg  Mg0  1  0.67  0.0  0.65  1.0
  Mg  Mg1  1  0.0  0.67  0.22  1.0
  Mg  Mg2  1  0.67  0.0  0.22  1.0
  Mg  Mg3  1  0.0  0.67  0.65  1.0
  Sb  Sb20  1  0.01  0.61  0.0  1.0
  Sb  Sb21  1  0.32  0.72  0.0  1.0
  Sb  Sb22  1  0.61  0.32  0.43  1.0
  Sb  Sb23  1  0.72  0.01  0.43  1.0
  Sb  Sb24  1  0.34  0.39  0.0  1.0
  Sb  Sb25  1  0.99  0.94  0.0  1.0
  Sb  Sb26  1  0.94  0.34  0.43  1.0
  Sb  Sb27  1  0.39  0.99  0.43  1.0
  P  P4  1  0.79  0.2  0.0  1.0
  P  P5  1  0.54  0.14  0.0  1.0
  P  P6  1  0.2  0.54  0.43  1.0
  P  P7  1  0.14  0.79  0.43  1.0
  P  P8  1  0.13  0.8  0.0  1.0
  P  P9  1  0.2  0.53  0.0  1.0
  P  P10  1  0.53  0.13  0.43  1.0
  P  P11  1  0.8  0.2  0.43  1.0
  P  P12  1  0.81  0.48  0.65  1.0
  P  P13  1  0.52  0.85  0.65  1.0
  P  P14  1  0.48  0.52  0.22  1.0
  P  P15  1  0.85  0.81  0.22  1.0
  P  P16  1  0.52  0.85  0.22  1.0
  P  P17  1  0.81  0.48  0.22  1.0
  P  P18  1  0.85  0.81  0.65  1.0
  P  P19  1  0.48  0.52  0.65  1.0

data_Mg(SbP2)2
_symmetry_space_group_name_H-M   P1
_cell_length_a   8.87
_cell_length_b   9.33
_cell_length_c   9.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg(SbP2)2
_chemical_formula_sum   'Mg4 Sb8 P16'
_cell_volume   771.97
_cell_formula_units_Z   4
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
  Mg  Mg0  1  0.22  -0.0  0.67  1.0
  Mg  Mg1  1  0.22  0.67  0.0  1.0
  Mg  Mg2  1  0.65  -0.0  0.67  1.0
  Mg  Mg3  1  0.65  0.67  0.0  1.0
  Sb  Sb4  1  0.0  0.01  0.61  1.0
  Sb  Sb5  1  0.0  0.32  0.72  1.0
  Sb  Sb6  1  0.0  0.34  0.39  1.0
  Sb  Sb7  1  0.0  0.99  0.94  1.0
  Sb  Sb8  1  0.43  0.39  0.99  1.0
  Sb  Sb9  1  0.43  0.61  0.32  1.0
  Sb  Sb10  1  0.43  0.72  0.01  1.0
  Sb  Sb11  1  0.43  0.94  0.34  1.0
  P  P12  1  0.0  0.13  0.8  1.0
  P  P13  1  0.0  0.2  0.53  1.0
  P  P14  1  0.0  0.54  0.14  1.0
  P  P15  1  0.0  0.79  0.2  1.0
  P  P16  1  0.22  0.48  0.52  1.0
  P  P17  1  0.22  0.52  0.85  1.0
  P  P18  1  0.22  0.81  0.48  1.0
  P  P19  1  0.22  0.85  0.81  1.0
  P  P20  1  0.43  0.14  0.79  1.0
  P  P21  1  0.43  0.2  0.54  1.0
  P  P22  1  0.43  0.53  0.13  1.0
  P  P23  1  0.43  0.8  0.2  1.0
  P  P24  1  0.65  0.48  0.52  1.0
  P  P25  1  0.65  0.52  0.85  1.0
  P  P26  1  0.65  0.81  0.48  1.0
  P  P27  1  0.65  0.85  0.81  1.0

Mg Mg Mg Mg Sb Sb Sb Sb Sb Sb Sb Sb P P P P P P P P P P P P P P P P
Mg(SbP2)2 crystallizes in the triclinic P1 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 2-coordinate geometry to one Sb(4), one P(10), one P(15), and one P(7) atom. The Mg(1)-Sb(4) bond length is 2.00 Å. The Mg(1)-P(10) bond length is 1.97 Å. The Mg(1)-P(15) bond length is 2.45 Å. The Mg(1)-P(7) bond length is 2.59 Å. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to one Sb(1), one P(12), one P(14), one P(3), one P(4), and one P(5) atom. The Mg(2)-Sb(1) bond length is 2.00 Å. The Mg(2)-P(12) bond length is 1.97 Å. The Mg(2)-P(14) bond length is 2.45 Å. The Mg(2)-P(3) bond length is 2.90 Å. The Mg(2)-P(4) bond length is 2.59 Å. The Mg(2)-P(5) bond length is 2.59 Å. In the third Mg site, Mg(3) is bonded in a 2-coordinate geometry to one Sb(4), one P(1), one P(13), one P(2), and one P(7) atom. The Mg(3)-Sb(4) bond length is 2.00 Å. The Mg(3)-P(1) bond length is 2.90 Å. The Mg(3)-P(13) bond length is 1.97 Å. The Mg(3)-P(2) bond length is 2.59 Å. The Mg(3)-P(7) bond length is 2.59 Å. In the fourth Mg site, Mg(4) is bonded in a 5-coordinate geometry to one Sb(1), one P(15), one P(3), one P(4), and one P(9) atom. The Mg(4)-Sb(1) bond length is 3.15 Å. The Mg(4)-P(15) bond length is 1.97 Å. The Mg(4)-P(3) bond length is 2.90 Å. The Mg(4)-P(4) bond length is 2.59 Å. The Mg(4)-P(9) bond length is 2.45 Å. There are eight inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 1-coordinate geometry to one Mg(2), one Mg(4), one P(14), one P(5), and one P(6) atom. The Sb(1)-P(14) bond length is 2.88 Å. The Sb(1)-P(5) bond length is 2.13 Å. The Sb(1)-P(6) bond length is 1.98 Å. In the second Sb site, Sb(2) is bonded in a 2-coordinate geometry to one P(11), one P(5), and one P(6) atom. The Sb(2)-P(11) bond length is 3.09 Å. The Sb(2)-P(5) bond length is 1.98 Å. The Sb(2)-P(6) bond length is 2.13 Å. In the third Sb site, Sb(3) is bonded in a 2-coordinate geometry to one P(11), one P(14), one P(16), one P(7), and one P(8) atom. The Sb(3)-P(11) bond length is 2.88 Å. The Sb(3)-P(14) bond length is 3.09 Å. The Sb(3)-P(16) bond length is 2.88 Å. The Sb(3)-P(7) bond length is 1.98 Å. The Sb(3)-P(8) bond length is 2.13 Å. In the fourth Sb site, Sb(4) is bonded in a 4-coordinate geometry to one Mg(1), one Mg(3), one P(7), and one P(8) atom. The Sb(4)-P(7) bond length is 2.13 Å. The Sb(4)-P(8) bond length is 1.98 Å. In the fifth Sb site, Sb(5) is bonded in a distorted T-shaped geometry to one P(11), one P(2), and one P(6) atom. The Sb(5)-P(11) bond length is 2.61 Å. The Sb(5)-P(2) bond length is 3.00 Å. The Sb(5)-P(6) bond length is 1.84 Å. In the sixth Sb site, Sb(6) is bonded in a distorted T-shaped geometry to one P(1), one P(12), and one P(5) atom. The Sb(6)-P(1) bond length is 3.00 Å. The Sb(6)-P(12) bond length is 2.61 Å. The Sb(6)-P(5) bond length is 1.84 Å. In the seventh Sb site, Sb(7) is bonded in a distorted rectangular see-saw-like geometry to one P(14), one P(3), one P(8), and one P(9) atom. The Sb(7)-P(14) bond length is 2.61 Å. The Sb(7)-P(3) bond length is 3.00 Å. The Sb(7)-P(8) bond length is 1.84 Å. The Sb(7)-P(9) bond length is 2.61 Å. In the eighth Sb site, Sb(8) is bonded in a distorted rectangular see-saw-like geometry to one P(10), one P(13), one P(4), and one P(7) atom. The Sb(8)-P(10) bond length is 2.61 Å. The Sb(8)-P(13) bond length is 2.61 Å. The Sb(8)-P(4) bond length is 3.00 Å. The Sb(8)-P(7) bond length is 1.84 Å. There are sixteen inequivalent P sites. In the first P site, P(1) is bonded in a 3-coordinate geometry to one Mg(3), one Sb(6), and one P(2) atom. The P(1)-P(2) bond length is 2.44 Å. In the second P site, P(2) is bonded in a 3-coordinate geometry to one Mg(3), one Sb(5), and one P(1) atom. In the third P site, P(3) is bonded in a 4-coordinate geometry to one Mg(2), one Mg(4), one Sb(7), and one P(4) atom. The P(3)-P(4) bond length is 2.44 Å. In the fourth P site, P(4) is bonded in a 4-coordinate geometry to one Mg(2), one Mg(4), one Sb(8), and one P(3) atom. In the fifth P site, P(5) is bonded in a 4-coordinate geometry to one Mg(2), one Sb(1), one Sb(2), and one Sb(6) atom. In the sixth P site, P(6) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(2), and one Sb(5) atom. In the seventh P site, P(7) is bonded in a 5-coordinate geometry to one Mg(1), one Mg(3), one Sb(3), one Sb(4), and one Sb(8) atom. In the eighth P site, P(8) is bonded in a 3-coordinate geometry to one Sb(3), one Sb(4), and one Sb(7) atom. In the ninth P site, P(9) is bonded in a 1-coordinate geometry to one Mg(4) and one Sb(7) atom. In the tenth P site, P(10) is bonded in a distorted single-bond geometry to one Mg(1) and one Sb(8) atom. In the eleventh P site, P(11) is bonded in a 3-coordinate geometry to one Sb(2), one Sb(3), and one Sb(5) atom. In the twelfth P site, P(12) is bonded in a 1-coordinate geometry to one Mg(2) and one Sb(6) atom. In the thirteenth P site, P(13) is bonded in a distorted single-bond geometry to one Mg(3) and one Sb(8) atom. In the fourteenth P site, P(14) is bonded in a 4-coordinate geometry to one Mg(2), one Sb(1), one Sb(3), and one Sb(7) atom. In the fifteenth P site, P(15) is bonded in a distorted linear geometry to one Mg(1) and one Mg(4) atom. In the sixteenth P site, P(16) is bonded in a single-bond geometry to one Sb(3) atom.