The compound described by Sr4CaMn2Ga2O11 crystallizes in the triclinic P-1 space group. There are two 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(5), one O(6), and one O(7) atom. In the second Sr site, Sr(2) is bonded in a 11-coordinate geometry to one O(5), one O(6), one O(7), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ca(1) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(4) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(2)O6 octahedra and corners with two equivalent Ga(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 9-31°. In the second Mn site, Mn(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra and corners with two equivalent Ga(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 9-31°. Ga(1) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and corners with three equivalent Ga(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 30-33°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), one Mn(1), and one Ga(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), one Mn(2), and one Ga(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Sr(1), two equivalent Sr(2), one Ca(1), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(2), one Ca(1), one Mn(1), and one Mn(2) atom to form distorted OSr2CaMn2 trigonal bipyramids that share corners with two equivalent O(5)Sr4Ga2 octahedra, corners with two equivalent O(6)Sr4Ga2 octahedra, corners with three equivalent O(4)Sr2CaMn2 trigonal bipyramids, and  an edgeedge with one O(4)Sr2CaMn2 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 3-88°. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ga(1) atoms to form distorted OSr4Ga2 octahedra that share corners with four equivalent O(4)Sr2CaMn2 trigonal bipyramids and faces with two equivalent O(6)Sr4Ga2 octahedra. In the sixth O site, O(6) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ga(1) atoms to form distorted OSr4Ga2 octahedra that share corners with four equivalent O(4)Sr2CaMn2 trigonal bipyramids and faces with two equivalent O(5)Sr4Ga2 octahedra. In the seventh O site, O(7) is bonded in a distorted square co-planar geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Sr4CaMn2Ga2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.778
_cell_length_b   5.796
_cell_length_c   8.854
_cell_angle_alpha   71.999
_cell_angle_beta   73.787
_cell_angle_gamma   89.133
_symmetry_Int_Tables_number   1
_cell_volume   269.962
_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  0.068  0.579  0.837  1.0
  Sr  Sr1  1  0.631  0.130  0.729  1.0
  Sr  Sr2  1  0.432  0.921  0.163  1.0
  Sr  Sr3  1  0.869  0.370  0.271  1.0
  Ca  Ca4  1  0.250  0.750  0.500  1.0
  Mn  Mn5  1  0.250  0.250  0.500  1.0
  Mn  Mn6  1  0.750  0.750  0.500  1.0
  Ga  Ga7  1  0.510  0.486  0.999  1.0
  Ga  Ga8  1  0.990  0.014  0.001  1.0
  O  O9  1  0.165  0.044  0.771  1.0
  O  O10  1  0.539  0.670  0.768  1.0
  O  O11  1  0.335  0.456  0.229  1.0
  O  O12  1  0.961  0.830  0.232  1.0
  O  O13  1  0.546  0.015  0.431  1.0
  O  O14  1  0.954  0.485  0.569  1.0
  O  O15  1  0.991  0.032  0.499  1.0
  O  O16  1  0.509  0.468  0.501  1.0
  O  O17  1  0.750  0.250  0.000  1.0
  O  O18  1  0.750  0.750  0.000  1.0
  O  O19  1  0.250  0.250  0.000  1.0
[/CIF]
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The compound described by Sr4CaMn2Ga2O11 crystallizes in the triclinic P-1 space group. There are two 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(5), one O(6), and one O(7) atom. In the second Sr site, Sr(2) is bonded in a 11-coordinate geometry to one O(5), one O(6), one O(7), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ca(1) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(4) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(2)O6 octahedra and corners with two equivalent Ga(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 9-31°. In the second Mn site, Mn(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra and corners with two equivalent Ga(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 9-31°. Ga(1) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and corners with three equivalent Ga(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 30-33°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), one Mn(1), and one Ga(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), one Mn(2), and one Ga(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Sr(1), two equivalent Sr(2), one Ca(1), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(2), one Ca(1), one Mn(1), and one Mn(2) atom to form distorted OSr2CaMn2 trigonal bipyramids that share corners with two equivalent O(5)Sr4Ga2 octahedra, corners with two equivalent O(6)Sr4Ga2 octahedra, corners with three equivalent O(4)Sr2CaMn2 trigonal bipyramids, and  an edgeedge with one O(4)Sr2CaMn2 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 3-88°. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ga(1) atoms to form distorted OSr4Ga2 octahedra that share corners with four equivalent O(4)Sr2CaMn2 trigonal bipyramids and faces with two equivalent O(6)Sr4Ga2 octahedra. In the sixth O site, O(6) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ga(1) atoms to form distorted OSr4Ga2 octahedra that share corners with four equivalent O(4)Sr2CaMn2 trigonal bipyramids and faces with two equivalent O(5)Sr4Ga2 octahedra. In the seventh O site, O(7) is bonded in a distorted square co-planar geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Sr4CaMn2Ga2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.778
_cell_length_b   5.796
_cell_length_c   8.854
_cell_angle_alpha   71.999
_cell_angle_beta   73.787
_cell_angle_gamma   89.133
_symmetry_Int_Tables_number   1
_cell_volume   269.962
_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  0.068  0.579  0.837  1.0
  Sr  Sr1  1  0.631  0.130  0.729  1.0
  Sr  Sr2  1  0.432  0.921  0.163  1.0
  Sr  Sr3  1  0.869  0.370  0.271  1.0
  Ca  Ca4  1  0.250  0.750  0.500  1.0
  Mn  Mn5  1  0.250  0.250  0.500  1.0
  Mn  Mn6  1  0.750  0.750  0.500  1.0
  Ga  Ga7  1  0.510  0.486  0.999  1.0
  Ga  Ga8  1  0.990  0.014  0.001  1.0
  O  O9  1  0.165  0.044  0.771  1.0
  O  O10  1  0.539  0.670  0.768  1.0
  O  O11  1  0.335  0.456  0.229  1.0
  O  O12  1  0.961  0.830  0.232  1.0
  O  O13  1  0.546  0.015  0.431  1.0
  O  O14  1  0.954  0.485  0.569  1.0
  O  O15  1  0.991  0.032  0.499  1.0
  O  O16  1  0.509  0.468  0.501  1.0
  O  O17  1  0.750  0.250  0.000  1.0
  O  O18  1  0.750  0.750  0.000  1.0
  O  O19  1  0.250  0.250  0.000  1.0
[/CIF]
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