The material described by Sr4MgMn2(GaO5)2 crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(6), and one O(8) atom. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. In the fourth Sr site, Sr(4) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(8), and one O(9) atom. Mg(1) is bonded to one O(10), one O(4), one O(5), and one O(7) atom to form distorted MgO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra, corners with two equivalent Ga(2)O4 tetrahedra,  a cornercorner with one Mn(1)O5 trigonal bipyramid, and  a cornercorner with one Mn(2)O5 trigonal bipyramid. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(6) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Ga(2)O4 tetrahedra, and corners with four equivalent Mn(2)O5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(8) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Ga(1)O4 tetrahedra, and corners with four equivalent Mn(1)O5 trigonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(5), one O(8), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Ga(2)O4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(10), one O(6), one O(7), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Mn(1)O5 trigonal bipyramid, and  an edgeedge with one Ga(1)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom to form a mixture of edge and corner-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom to form a mixture of edge and corner-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Mg(1), one Mn(1), and one Mn(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(3), one Mg(1), and one Ga(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Sr(2), one Sr(4), one Mn(1), and one Ga(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(3), one Mg(1), and one Ga(2) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Sr(2), one Sr(4), one Mn(2), and one Ga(1) atom. In the ninth O site, O(9) is bonded in a trigonal non-coplanar geometry to one Sr(4), one Ga(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(3), one Mg(1), one Ga(1), and one Ga(2) atom. is represented by the CIF card [CIF]
data_Sr4MgMn2(GaO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.944
_cell_length_b   5.966
_cell_length_c   9.621
_cell_angle_alpha   66.143
_cell_angle_beta   83.985
_cell_angle_gamma   100.328
_symmetry_Int_Tables_number   1
_cell_volume   300.926
_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  0.044  0.608  0.848  1.0
  Sr  Sr1  1  0.939  0.321  0.240  1.0
  Sr  Sr2  1  0.476  0.185  0.837  1.0
  Sr  Sr3  1  0.346  0.916  0.237  1.0
  Mg  Mg4  1  0.837  0.996  0.666  1.0
  Mn  Mn5  1  0.477  0.529  0.042  1.0
  Mn  Mn6  1  0.927  0.981  0.044  1.0
  Ga  Ga7  1  0.737  0.635  0.485  1.0
  Ga  Ga8  1  0.383  0.277  0.483  1.0
  O  O9  1  0.219  0.283  0.999  1.0
  O  O10  1  0.190  0.748  0.047  1.0
  O  O11  1  0.706  0.260  0.045  1.0
  O  O12  1  0.730  0.873  0.897  1.0
  O  O13  1  0.771  0.658  0.664  1.0
  O  O14  1  0.356  0.296  0.291  1.0
  O  O15  1  0.179  0.059  0.661  1.0
  O  O16  1  0.911  0.859  0.294  1.0
  O  O17  1  0.418  0.601  0.477  1.0
  O  O18  1  0.710  0.273  0.520  1.0
[/CIF]
.
The material described by Sr4MgMn2(GaO5)2 crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(6), and one O(8) atom. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. In the fourth Sr site, Sr(4) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(8), and one O(9) atom. Mg(1) is bonded to one O(10), one O(4), one O(5), and one O(7) atom to form distorted MgO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra, corners with two equivalent Ga(2)O4 tetrahedra,  a cornercorner with one Mn(1)O5 trigonal bipyramid, and  a cornercorner with one Mn(2)O5 trigonal bipyramid. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(6) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Ga(2)O4 tetrahedra, and corners with four equivalent Mn(2)O5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(8) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Ga(1)O4 tetrahedra, and corners with four equivalent Mn(1)O5 trigonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(5), one O(8), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Ga(2)O4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(10), one O(6), one O(7), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Mn(1)O5 trigonal bipyramid, and  an edgeedge with one Ga(1)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom to form a mixture of edge and corner-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom to form a mixture of edge and corner-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Mg(1), one Mn(1), and one Mn(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(3), one Mg(1), and one Ga(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Sr(2), one Sr(4), one Mn(1), and one Ga(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(3), one Mg(1), and one Ga(2) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Sr(2), one Sr(4), one Mn(2), and one Ga(1) atom. In the ninth O site, O(9) is bonded in a trigonal non-coplanar geometry to one Sr(4), one Ga(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(3), one Mg(1), one Ga(1), and one Ga(2) atom. is represented by the CIF card [CIF]
data_Sr4MgMn2(GaO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.944
_cell_length_b   5.966
_cell_length_c   9.621
_cell_angle_alpha   66.143
_cell_angle_beta   83.985
_cell_angle_gamma   100.328
_symmetry_Int_Tables_number   1
_cell_volume   300.926
_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  0.044  0.608  0.848  1.0
  Sr  Sr1  1  0.939  0.321  0.240  1.0
  Sr  Sr2  1  0.476  0.185  0.837  1.0
  Sr  Sr3  1  0.346  0.916  0.237  1.0
  Mg  Mg4  1  0.837  0.996  0.666  1.0
  Mn  Mn5  1  0.477  0.529  0.042  1.0
  Mn  Mn6  1  0.927  0.981  0.044  1.0
  Ga  Ga7  1  0.737  0.635  0.485  1.0
  Ga  Ga8  1  0.383  0.277  0.483  1.0
  O  O9  1  0.219  0.283  0.999  1.0
  O  O10  1  0.190  0.748  0.047  1.0
  O  O11  1  0.706  0.260  0.045  1.0
  O  O12  1  0.730  0.873  0.897  1.0
  O  O13  1  0.771  0.658  0.664  1.0
  O  O14  1  0.356  0.296  0.291  1.0
  O  O15  1  0.179  0.059  0.661  1.0
  O  O16  1  0.911  0.859  0.294  1.0
  O  O17  1  0.418  0.601  0.477  1.0
  O  O18  1  0.710  0.273  0.520  1.0
[/CIF]
.