The compound described by Sr4CaMn2(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 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom. In the second Sr site, Sr(2) 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(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 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), one O(8), and one O(9) atom. Ca(1) is bonded to one O(10), one O(5), one O(6), one O(7), one O(8), and one O(9) atom to form distorted CaO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Ga(1)O4 tetrahedra, corners with two equivalent Ga(2)O4 tetrahedra,  an edgeedge with one Ga(1)O4 tetrahedra, and  an edgeedge with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-42°. 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), one O(5), and one O(6) atom to form distorted MnO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra,  a cornercorner with one Ga(1)O4 tetrahedra, and  a cornercorner with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 2-42°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form distorted MnO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one Ga(1)O4 tetrahedra, and  a cornercorner with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 2-41°. 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  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Ca(1)O6 octahedra,  an edgeedge with one Ca(1)O6 octahedra, and  an edgeedge with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-45°. 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  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Ca(1)O6 octahedra,  an edgeedge with one Ca(1)O6 octahedra, and  an edgeedge with one Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 44-45°. There are ten inequivalent O sites. In the first O site, O(1) 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 OSr4Mn2 octahedra that share corners with two equivalent O(4)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(4)Sr4Mn2 octahedra, faces with two equivalent O(2)Sr4Mn2 octahedra, and faces with two equivalent O(3)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles are 3°. 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 distorted OSr4Mn2 octahedra that share corners with two equivalent O(3)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(3)Sr4Mn2 octahedra, faces with two equivalent O(1)Sr4Mn2 octahedra, and faces with two equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. 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 distorted OSr4Mn2 octahedra that share corners with two equivalent O(2)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(2)Sr4Mn2 octahedra, faces with two equivalent O(1)Sr4Mn2 octahedra, and faces with two equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. In the fourth O site, O(4) 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 distorted OSr4Mn2 octahedra that share corners with two equivalent O(1)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(1)Sr4Mn2 octahedra, faces with two equivalent O(2)Sr4Mn2 octahedra, and faces with two equivalent O(3)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles are 3°. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Ca(1), one Mn(1), and one Ga(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(4), one Ca(1), one Mn(1), and one Ga(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Ca(1), one Mn(2), and one Ga(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(4), one Ca(1), one Mn(2), and one Ga(1) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(4), one Ca(1), one Ga(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded to one Sr(2), one Sr(3), one Ca(1), one Ga(1), and one Ga(2) atom to form distorted corner-sharing OSr2CaGa2 square pyramids. The corner-sharing octahedral tilt angles range from 35-70°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4CaMn2(GaO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.852
_cell_length_b   5.853
_cell_length_c   9.391
_cell_angle_alpha   71.306
_cell_angle_beta   71.320
_cell_angle_gamma   88.813
_symmetry_Int_Tables_number   1
_cell_volume   287.417
_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  0.087  0.596  0.821  1.0
  Sr  Sr1  1  0.902  0.394  0.204  1.0
  Sr  Sr2  1  0.593  0.088  0.825  1.0
  Sr  Sr3  1  0.390  0.902  0.208  1.0
  Ca  Ca4  1  0.982  0.998  0.517  1.0
  Mn  Mn5  1  0.497  0.498  0.007  1.0
  Mn  Mn6  1  0.995  0.996  0.008  1.0
  Ga  Ga7  1  0.659  0.652  0.516  1.0
  Ga  Ga8  1  0.327  0.325  0.516  1.0
  O  O9  1  0.252  0.254  0.996  1.0
  O  O10  1  0.244  0.745  0.012  1.0
  O  O11  1  0.743  0.244  0.014  1.0
  O  O12  1  0.733  0.735  0.034  1.0
  O  O13  1  0.695  0.689  0.698  1.0
  O  O14  1  0.286  0.286  0.337  1.0
  O  O15  1  0.105  0.106  0.699  1.0
  O  O16  1  0.879  0.874  0.336  1.0
  O  O17  1  0.325  0.658  0.516  1.0
  O  O18  1  0.662  0.318  0.516  1.0
[/CIF]
.
The compound described by Sr4CaMn2(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 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom. In the second Sr site, Sr(2) 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(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 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), one O(8), and one O(9) atom. Ca(1) is bonded to one O(10), one O(5), one O(6), one O(7), one O(8), and one O(9) atom to form distorted CaO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Ga(1)O4 tetrahedra, corners with two equivalent Ga(2)O4 tetrahedra,  an edgeedge with one Ga(1)O4 tetrahedra, and  an edgeedge with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-42°. 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), one O(5), and one O(6) atom to form distorted MnO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra,  a cornercorner with one Ga(1)O4 tetrahedra, and  a cornercorner with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 2-42°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form distorted MnO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one Ga(1)O4 tetrahedra, and  a cornercorner with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 2-41°. 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  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Ca(1)O6 octahedra,  an edgeedge with one Ca(1)O6 octahedra, and  an edgeedge with one Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-45°. 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  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Ca(1)O6 octahedra,  an edgeedge with one Ca(1)O6 octahedra, and  an edgeedge with one Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 44-45°. There are ten inequivalent O sites. In the first O site, O(1) 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 OSr4Mn2 octahedra that share corners with two equivalent O(4)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(4)Sr4Mn2 octahedra, faces with two equivalent O(2)Sr4Mn2 octahedra, and faces with two equivalent O(3)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles are 3°. 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 distorted OSr4Mn2 octahedra that share corners with two equivalent O(3)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(3)Sr4Mn2 octahedra, faces with two equivalent O(1)Sr4Mn2 octahedra, and faces with two equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. 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 distorted OSr4Mn2 octahedra that share corners with two equivalent O(2)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(2)Sr4Mn2 octahedra, faces with two equivalent O(1)Sr4Mn2 octahedra, and faces with two equivalent O(4)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. In the fourth O site, O(4) 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 distorted OSr4Mn2 octahedra that share corners with two equivalent O(1)Sr4Mn2 octahedra, corners with two equivalent O(10)Sr2CaGa2 square pyramids, edges with two equivalent O(1)Sr4Mn2 octahedra, faces with two equivalent O(2)Sr4Mn2 octahedra, and faces with two equivalent O(3)Sr4Mn2 octahedra. The corner-sharing octahedral tilt angles are 3°. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Ca(1), one Mn(1), and one Ga(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(4), one Ca(1), one Mn(1), and one Ga(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Ca(1), one Mn(2), and one Ga(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(4), one Ca(1), one Mn(2), and one Ga(1) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(4), one Ca(1), one Ga(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded to one Sr(2), one Sr(3), one Ca(1), one Ga(1), and one Ga(2) atom to form distorted corner-sharing OSr2CaGa2 square pyramids. The corner-sharing octahedral tilt angles range from 35-70°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4CaMn2(GaO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.852
_cell_length_b   5.853
_cell_length_c   9.391
_cell_angle_alpha   71.306
_cell_angle_beta   71.320
_cell_angle_gamma   88.813
_symmetry_Int_Tables_number   1
_cell_volume   287.417
_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  0.087  0.596  0.821  1.0
  Sr  Sr1  1  0.902  0.394  0.204  1.0
  Sr  Sr2  1  0.593  0.088  0.825  1.0
  Sr  Sr3  1  0.390  0.902  0.208  1.0
  Ca  Ca4  1  0.982  0.998  0.517  1.0
  Mn  Mn5  1  0.497  0.498  0.007  1.0
  Mn  Mn6  1  0.995  0.996  0.008  1.0
  Ga  Ga7  1  0.659  0.652  0.516  1.0
  Ga  Ga8  1  0.327  0.325  0.516  1.0
  O  O9  1  0.252  0.254  0.996  1.0
  O  O10  1  0.244  0.745  0.012  1.0
  O  O11  1  0.743  0.244  0.014  1.0
  O  O12  1  0.733  0.735  0.034  1.0
  O  O13  1  0.695  0.689  0.698  1.0
  O  O14  1  0.286  0.286  0.337  1.0
  O  O15  1  0.105  0.106  0.699  1.0
  O  O16  1  0.879  0.874  0.336  1.0
  O  O17  1  0.325  0.658  0.516  1.0
  O  O18  1  0.662  0.318  0.516  1.0
[/CIF]
.