The structure described by Sr4CaMn2(GaO5)2 is Aluminum carbonitride-derived structured and 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(4), one O(5), one O(7), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to 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 5-coordinate geometry to one O(10), 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. Ca(1) is bonded to one O(1), one O(2), one O(6), and one O(8) atom to form distorted CaO4 tetrahedra that share  a cornercorner with one Ga(1)O4 tetrahedra,  a cornercorner with one Ga(2)O4 tetrahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(7), and one O(8) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Ga(1)O4 tetrahedra,  a cornercorner with one Ga(2)O4 tetrahedra, and  an edgeedge with one Ca(1)O4 tetrahedra. 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 Ca(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  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Mn(2)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 to one Sr(1), one Sr(4), one Ca(1), one Mn(1), and one Mn(2) atom to form distorted OSr2CaMn2 square pyramids that share corners with two equivalent O(6)Sr2CaGa tetrahedra,  an edgeedge with one O(5)Sr2MnGa tetrahedra, and edges with two equivalent O(2)Sr3CaMn trigonal bipyramids. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(4), one Ca(1), and one Mn(2) atom to form distorted OSr3CaMn trigonal bipyramids that share  a cornercorner with one O(6)Sr2CaGa tetrahedra,  a cornercorner with one O(5)Sr2MnGa tetrahedra, edges with two equivalent O(1)Sr2CaMn2 square pyramids, and  an edgeedge with one O(6)Sr2CaGa tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), and one Mn(1) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(3), one Mn(1), and one Ga(1) atom to form distorted OSr2MnGa tetrahedra that share  a cornercorner with one O(2)Sr3CaMn trigonal bipyramid and  an edgeedge with one O(1)Sr2CaMn2 square pyramid. In the sixth O site, O(6) is bonded to one Sr(2), one Sr(4), one Ca(1), and one Ga(2) atom to form distorted OSr2CaGa tetrahedra that share corners with two equivalent O(1)Sr2CaMn2 square pyramids,  a cornercorner with one O(2)Sr3CaMn trigonal bipyramid, and  an edgeedge with one O(2)Sr3CaMn trigonal bipyramid. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), one Sr(3), 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 rectangular see-saw-like geometry to one Sr(1), 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(2), one Sr(3), one Ga(1), and one Ga(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4CaMn2(GaO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.761
_cell_length_b   6.158
_cell_length_c   9.470
_cell_angle_alpha   62.680
_cell_angle_beta   68.919
_cell_angle_gamma   91.730
_symmetry_Int_Tables_number   1
_cell_volume   317.612
_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  0.199  0.707  0.783  1.0
  Sr  Sr1  1  0.719  0.362  0.207  1.0
  Sr  Sr2  1  0.761  0.058  0.745  1.0
  Sr  Sr3  1  0.311  0.837  0.211  1.0
  Ca  Ca4  1  0.179  0.323  0.203  1.0
  Mn  Mn5  1  0.605  0.434  0.891  1.0
  Mn  Mn6  1  0.009  0.032  0.006  1.0
  Ga  Ga7  1  0.675  0.726  0.492  1.0
  Ga  Ga8  1  0.356  0.382  0.541  1.0
  O  O9  1  0.297  0.259  0.967  1.0
  O  O10  1  0.084  0.675  0.094  1.0
  O  O11  1  0.683  0.117  0.023  1.0
  O  O12  1  0.810  0.630  0.902  1.0
  O  O13  1  0.598  0.747  0.695  1.0
  O  O14  1  0.349  0.395  0.342  1.0
  O  O15  1  0.129  0.134  0.733  1.0
  O  O16  1  0.909  0.985  0.306  1.0
  O  O17  1  0.387  0.729  0.482  1.0
  O  O18  1  0.654  0.399  0.513  1.0
[/CIF]
.
The structure described by Sr4CaMn2(GaO5)2 is Aluminum carbonitride-derived structured and 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(4), one O(5), one O(7), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to 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 5-coordinate geometry to one O(10), 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. Ca(1) is bonded to one O(1), one O(2), one O(6), and one O(8) atom to form distorted CaO4 tetrahedra that share  a cornercorner with one Ga(1)O4 tetrahedra,  a cornercorner with one Ga(2)O4 tetrahedra,  a cornercorner with one Mn(2)O5 trigonal bipyramid, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(7), and one O(8) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Ga(1)O4 tetrahedra,  a cornercorner with one Ga(2)O4 tetrahedra, and  an edgeedge with one Ca(1)O4 tetrahedra. 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 Ca(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  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Mn(2)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 to one Sr(1), one Sr(4), one Ca(1), one Mn(1), and one Mn(2) atom to form distorted OSr2CaMn2 square pyramids that share corners with two equivalent O(6)Sr2CaGa tetrahedra,  an edgeedge with one O(5)Sr2MnGa tetrahedra, and edges with two equivalent O(2)Sr3CaMn trigonal bipyramids. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(4), one Ca(1), and one Mn(2) atom to form distorted OSr3CaMn trigonal bipyramids that share  a cornercorner with one O(6)Sr2CaGa tetrahedra,  a cornercorner with one O(5)Sr2MnGa tetrahedra, edges with two equivalent O(1)Sr2CaMn2 square pyramids, and  an edgeedge with one O(6)Sr2CaGa tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(3), one Sr(4), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), and one Mn(1) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(3), one Mn(1), and one Ga(1) atom to form distorted OSr2MnGa tetrahedra that share  a cornercorner with one O(2)Sr3CaMn trigonal bipyramid and  an edgeedge with one O(1)Sr2CaMn2 square pyramid. In the sixth O site, O(6) is bonded to one Sr(2), one Sr(4), one Ca(1), and one Ga(2) atom to form distorted OSr2CaGa tetrahedra that share corners with two equivalent O(1)Sr2CaMn2 square pyramids,  a cornercorner with one O(2)Sr3CaMn trigonal bipyramid, and  an edgeedge with one O(2)Sr3CaMn trigonal bipyramid. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), one Sr(3), 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 rectangular see-saw-like geometry to one Sr(1), 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(2), one Sr(3), one Ga(1), and one Ga(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4CaMn2(GaO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.761
_cell_length_b   6.158
_cell_length_c   9.470
_cell_angle_alpha   62.680
_cell_angle_beta   68.919
_cell_angle_gamma   91.730
_symmetry_Int_Tables_number   1
_cell_volume   317.612
_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  0.199  0.707  0.783  1.0
  Sr  Sr1  1  0.719  0.362  0.207  1.0
  Sr  Sr2  1  0.761  0.058  0.745  1.0
  Sr  Sr3  1  0.311  0.837  0.211  1.0
  Ca  Ca4  1  0.179  0.323  0.203  1.0
  Mn  Mn5  1  0.605  0.434  0.891  1.0
  Mn  Mn6  1  0.009  0.032  0.006  1.0
  Ga  Ga7  1  0.675  0.726  0.492  1.0
  Ga  Ga8  1  0.356  0.382  0.541  1.0
  O  O9  1  0.297  0.259  0.967  1.0
  O  O10  1  0.084  0.675  0.094  1.0
  O  O11  1  0.683  0.117  0.023  1.0
  O  O12  1  0.810  0.630  0.902  1.0
  O  O13  1  0.598  0.747  0.695  1.0
  O  O14  1  0.349  0.395  0.342  1.0
  O  O15  1  0.129  0.134  0.733  1.0
  O  O16  1  0.909  0.985  0.306  1.0
  O  O17  1  0.387  0.729  0.482  1.0
  O  O18  1  0.654  0.399  0.513  1.0
[/CIF]
.