The crystal structure described by Sr4MgMn2Ga2O11 crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(2), one O(6), one O(7), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(6), one O(8), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 8-coordinate geometry to one O(10), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth Sr site, Sr(4) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. Mg(1) is bonded to one O(11), one O(3), one O(4), one O(5), and one O(7) atom to form distorted MgO5 trigonal bipyramids that share  an edgeedge with one Mn(1)O5 trigonal bipyramid,  an edgeedge with one Mn(2)O5 trigonal bipyramid,  an edgeedge with one Ga(1)O5 trigonal bipyramid, and  an edgeedge with one Ga(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(3), one O(6), one O(7), and one O(8) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 trigonal bipyramid,  a cornercorner with one Ga(2)O5 trigonal bipyramid, corners with three equivalent Mn(2)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the second Mn site, Mn(2) is bonded to one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 trigonal bipyramid, corners with three equivalent Mn(1)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(11), one O(2), one O(3), and one O(9) atom to form distorted GaO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O5 trigonal bipyramid,  a cornercorner with one Mn(2)O5 trigonal bipyramid, corners with three equivalent Ga(2)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the second Ga site, Ga(2) is bonded to one O(1), one O(10), one O(11), one O(4), and one O(9) atom to form distorted GaO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O5 trigonal bipyramid, corners with three equivalent Ga(1)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Mn(1), and one Ga(2) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Mn(2), and one Ga(1) atom to form distorted OSr2MnGa tetrahedra that share  a cornercorner with one O(3)Sr2MgMnGa trigonal bipyramid, corners with two equivalent O(7)Sr2MgMn2 trigonal bipyramids, and  an edgeedge with one O(11)Sr2MgGa2 trigonal bipyramid. In the third O site, O(3) is bonded to one Sr(3), one Sr(4), one Mg(1), one Mn(1), and one Ga(1) atom to form distorted OSr2MgMnGa trigonal bipyramids that share  a cornercorner with one O(2)Sr2MnGa tetrahedra,  a cornercorner with one O(11)Sr2MgGa2 trigonal bipyramid,  a cornercorner with one O(7)Sr2MgMn2 trigonal bipyramid,  an edgeedge with one O(11)Sr2MgGa2 trigonal bipyramid, and  an edgeedge with one O(7)Sr2MgMn2 trigonal bipyramid. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Sr(3), one Sr(4), one Mg(1), and one Ga(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), and one Mn(2) atom. In the sixth O site, O(6) 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 seventh O site, O(7) is bonded to one Sr(1), one Sr(3), one Mg(1), one Mn(1), and one Mn(2) atom to form distorted OSr2MgMn2 trigonal bipyramids that share corners with two equivalent O(2)Sr2MnGa tetrahedra,  a cornercorner with one O(3)Sr2MgMnGa trigonal bipyramid, corners with two equivalent O(11)Sr2MgGa2 trigonal bipyramids, and  an edgeedge with one O(3)Sr2MgMnGa trigonal bipyramid. In the eighth O site, O(8) 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 ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Ga(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Ga(1), and one Ga(2) atom. In the eleventh O site, O(11) is bonded to one Sr(1), one Sr(4), one Mg(1), one Ga(1), and one Ga(2) atom to form distorted OSr2MgGa2 trigonal bipyramids that share  a cornercorner with one O(3)Sr2MgMnGa trigonal bipyramid, corners with two equivalent O(7)Sr2MgMn2 trigonal bipyramids,  an edgeedge with one O(2)Sr2MnGa tetrahedra, and  an edgeedge with one O(3)Sr2MgMnGa trigonal bipyramid. is represented by the CIF card [CIF]
data_Sr4MgMn2Ga2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.884
_cell_length_b   5.937
_cell_length_c   8.742
_cell_angle_alpha   75.221
_cell_angle_beta   72.400
_cell_angle_gamma   99.933
_symmetry_Int_Tables_number   1
_cell_volume   270.934
_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  0.118  0.620  0.756  1.0
  Sr  Sr1  1  0.604  0.108  0.756  1.0
  Sr  Sr2  1  0.405  0.806  0.284  1.0
  Sr  Sr3  1  0.799  0.457  0.236  1.0
  Mg  Mg4  1  0.071  0.108  0.265  1.0
  Mn  Mn5  1  0.225  0.245  0.519  1.0
  Mn  Mn6  1  0.767  0.712  0.529  1.0
  Ga  Ga7  1  0.495  0.490  0.992  1.0
  Ga  Ga8  1  0.967  0.049  0.986  1.0
  O  O9  1  0.163  0.088  0.760  1.0
  O  O10  1  0.548  0.680  0.770  1.0
  O  O11  1  0.336  0.363  0.269  1.0
  O  O12  1  0.087  0.865  0.145  1.0
  O  O13  1  0.704  0.009  0.402  1.0
  O  O14  1  0.951  0.456  0.550  1.0
  O  O15  1  0.085  0.933  0.499  1.0
  O  O16  1  0.497  0.504  0.499  1.0
  O  O17  1  0.703  0.266  0.980  1.0
  O  O18  1  0.700  0.765  0.026  1.0
  O  O19  1  0.143  0.345  0.030  1.0
[/CIF]
.
The crystal structure described by Sr4MgMn2Ga2O11 crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(2), one O(6), one O(7), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(6), one O(8), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 8-coordinate geometry to one O(10), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth Sr site, Sr(4) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. Mg(1) is bonded to one O(11), one O(3), one O(4), one O(5), and one O(7) atom to form distorted MgO5 trigonal bipyramids that share  an edgeedge with one Mn(1)O5 trigonal bipyramid,  an edgeedge with one Mn(2)O5 trigonal bipyramid,  an edgeedge with one Ga(1)O5 trigonal bipyramid, and  an edgeedge with one Ga(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(3), one O(6), one O(7), and one O(8) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 trigonal bipyramid,  a cornercorner with one Ga(2)O5 trigonal bipyramid, corners with three equivalent Mn(2)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the second Mn site, Mn(2) is bonded to one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 trigonal bipyramid, corners with three equivalent Mn(1)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(11), one O(2), one O(3), and one O(9) atom to form distorted GaO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O5 trigonal bipyramid,  a cornercorner with one Mn(2)O5 trigonal bipyramid, corners with three equivalent Ga(2)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the second Ga site, Ga(2) is bonded to one O(1), one O(10), one O(11), one O(4), and one O(9) atom to form distorted GaO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O5 trigonal bipyramid, corners with three equivalent Ga(1)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Mn(1), and one Ga(2) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Mn(2), and one Ga(1) atom to form distorted OSr2MnGa tetrahedra that share  a cornercorner with one O(3)Sr2MgMnGa trigonal bipyramid, corners with two equivalent O(7)Sr2MgMn2 trigonal bipyramids, and  an edgeedge with one O(11)Sr2MgGa2 trigonal bipyramid. In the third O site, O(3) is bonded to one Sr(3), one Sr(4), one Mg(1), one Mn(1), and one Ga(1) atom to form distorted OSr2MgMnGa trigonal bipyramids that share  a cornercorner with one O(2)Sr2MnGa tetrahedra,  a cornercorner with one O(11)Sr2MgGa2 trigonal bipyramid,  a cornercorner with one O(7)Sr2MgMn2 trigonal bipyramid,  an edgeedge with one O(11)Sr2MgGa2 trigonal bipyramid, and  an edgeedge with one O(7)Sr2MgMn2 trigonal bipyramid. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Sr(3), one Sr(4), one Mg(1), and one Ga(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), and one Mn(2) atom. In the sixth O site, O(6) 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 seventh O site, O(7) is bonded to one Sr(1), one Sr(3), one Mg(1), one Mn(1), and one Mn(2) atom to form distorted OSr2MgMn2 trigonal bipyramids that share corners with two equivalent O(2)Sr2MnGa tetrahedra,  a cornercorner with one O(3)Sr2MgMnGa trigonal bipyramid, corners with two equivalent O(11)Sr2MgGa2 trigonal bipyramids, and  an edgeedge with one O(3)Sr2MgMnGa trigonal bipyramid. In the eighth O site, O(8) 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 ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Ga(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Ga(1), and one Ga(2) atom. In the eleventh O site, O(11) is bonded to one Sr(1), one Sr(4), one Mg(1), one Ga(1), and one Ga(2) atom to form distorted OSr2MgGa2 trigonal bipyramids that share  a cornercorner with one O(3)Sr2MgMnGa trigonal bipyramid, corners with two equivalent O(7)Sr2MgMn2 trigonal bipyramids,  an edgeedge with one O(2)Sr2MnGa tetrahedra, and  an edgeedge with one O(3)Sr2MgMnGa trigonal bipyramid. is represented by the CIF card [CIF]
data_Sr4MgMn2Ga2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.884
_cell_length_b   5.937
_cell_length_c   8.742
_cell_angle_alpha   75.221
_cell_angle_beta   72.400
_cell_angle_gamma   99.933
_symmetry_Int_Tables_number   1
_cell_volume   270.934
_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  0.118  0.620  0.756  1.0
  Sr  Sr1  1  0.604  0.108  0.756  1.0
  Sr  Sr2  1  0.405  0.806  0.284  1.0
  Sr  Sr3  1  0.799  0.457  0.236  1.0
  Mg  Mg4  1  0.071  0.108  0.265  1.0
  Mn  Mn5  1  0.225  0.245  0.519  1.0
  Mn  Mn6  1  0.767  0.712  0.529  1.0
  Ga  Ga7  1  0.495  0.490  0.992  1.0
  Ga  Ga8  1  0.967  0.049  0.986  1.0
  O  O9  1  0.163  0.088  0.760  1.0
  O  O10  1  0.548  0.680  0.770  1.0
  O  O11  1  0.336  0.363  0.269  1.0
  O  O12  1  0.087  0.865  0.145  1.0
  O  O13  1  0.704  0.009  0.402  1.0
  O  O14  1  0.951  0.456  0.550  1.0
  O  O15  1  0.085  0.933  0.499  1.0
  O  O16  1  0.497  0.504  0.499  1.0
  O  O17  1  0.703  0.266  0.980  1.0
  O  O18  1  0.700  0.765  0.026  1.0
  O  O19  1  0.143  0.345  0.030  1.0
[/CIF]
.