The material described by Ca2B5H2O10Cl crystallizes in the triclinic P1 space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(7), one O(8), and one Cl(1) atom to form distorted CaClO6 hexagonal pyramids that share  a cornercorner with one B(3)O4 tetrahedra, corners with two equivalent B(1)O4 tetrahedra, corners with two equivalent B(2)O4 tetrahedra, and  an edgeedge with one B(3)O4 tetrahedra. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), one O(8), one O(9), and one Cl(1) atom. There are five inequivalent B sites. In the first B site, B(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form BO4 tetrahedra that share corners with two equivalent Ca(1)ClO6 hexagonal pyramids,  a cornercorner with one B(2)O4 tetrahedra, and  a cornercorner with one B(3)O4 tetrahedra. In the second B site, B(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form BO4 tetrahedra that share corners with two equivalent Ca(1)ClO6 hexagonal pyramids,  a cornercorner with one B(1)O4 tetrahedra, and  a cornercorner with one B(3)O4 tetrahedra. In the third B site, B(3) is bonded to one O(10), one O(4), one O(8), and one O(9) atom to form BO4 tetrahedra that share  a cornercorner with one Ca(1)ClO6 hexagonal pyramid,  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one B(2)O4 tetrahedra, and  an edgeedge with one Ca(1)ClO6 hexagonal pyramid. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(3), one O(6), and one O(9) atom. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(10), one O(2), and one O(7) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Ca(1), one Ca(2), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ca(1), one B(1), and one B(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Ca(2), one B(1), and one B(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ca(1), one Ca(2), one B(1), and one B(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Ca(2), one B(1), and one B(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ca(2), one B(2), and one B(4) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(2), and one B(5) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ca(1), one Ca(2), one B(2), and one B(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(3), and one B(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ca(1), one B(3), and one B(5) atom. Cl(1) is bonded in an L-shaped geometry to one Ca(1) and one Ca(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca2B5H2ClO10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.324
_cell_length_b   6.548
_cell_length_c   6.646
_cell_angle_alpha   73.868
_cell_angle_beta   61.917
_cell_angle_gamma   61.516
_symmetry_Int_Tables_number   1
_cell_volume   212.916
_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
  Ca  Ca0  1  0.898  0.452  0.443  1.0
  Ca  Ca1  1  0.996  0.005  0.999  1.0
  B  B2  1  0.528  0.475  0.131  1.0
  B  B3  1  0.398  0.329  0.911  1.0
  B  B4  1  0.931  0.550  0.972  1.0
  B  B5  1  0.519  0.881  0.995  1.0
  B  B6  1  0.288  0.449  0.580  1.0
  H  H7  1  0.580  0.971  0.463  1.0
  H  H8  1  0.823  0.929  0.509  1.0
  Cl  Cl9  1  0.184  0.988  0.531  1.0
  O  O10  1  0.773  0.887  0.413  1.0
  O  O11  1  0.326  0.450  0.359  1.0
  O  O12  1  0.413  0.723  0.040  1.0
  O  O13  1  0.776  0.421  0.144  1.0
  O  O14  1  0.593  0.309  0.979  1.0
  O  O15  1  0.366  0.106  0.949  1.0
  O  O16  1  0.481  0.395  0.653  1.0
  O  O17  1  0.140  0.506  0.034  1.0
  O  O18  1  0.766  0.807  0.985  1.0
  O  O19  1  0.030  0.487  0.735  1.0
[/CIF]
.
The material described by Ca2B5H2O10Cl crystallizes in the triclinic P1 space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(7), one O(8), and one Cl(1) atom to form distorted CaClO6 hexagonal pyramids that share  a cornercorner with one B(3)O4 tetrahedra, corners with two equivalent B(1)O4 tetrahedra, corners with two equivalent B(2)O4 tetrahedra, and  an edgeedge with one B(3)O4 tetrahedra. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), one O(8), one O(9), and one Cl(1) atom. There are five inequivalent B sites. In the first B site, B(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form BO4 tetrahedra that share corners with two equivalent Ca(1)ClO6 hexagonal pyramids,  a cornercorner with one B(2)O4 tetrahedra, and  a cornercorner with one B(3)O4 tetrahedra. In the second B site, B(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form BO4 tetrahedra that share corners with two equivalent Ca(1)ClO6 hexagonal pyramids,  a cornercorner with one B(1)O4 tetrahedra, and  a cornercorner with one B(3)O4 tetrahedra. In the third B site, B(3) is bonded to one O(10), one O(4), one O(8), and one O(9) atom to form BO4 tetrahedra that share  a cornercorner with one Ca(1)ClO6 hexagonal pyramid,  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one B(2)O4 tetrahedra, and  an edgeedge with one Ca(1)ClO6 hexagonal pyramid. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(3), one O(6), and one O(9) atom. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(10), one O(2), and one O(7) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Ca(1), one Ca(2), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ca(1), one B(1), and one B(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Ca(2), one B(1), and one B(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ca(1), one Ca(2), one B(1), and one B(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Ca(2), one B(1), and one B(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ca(2), one B(2), and one B(4) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(2), and one B(5) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ca(1), one Ca(2), one B(2), and one B(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(3), and one B(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ca(1), one B(3), and one B(5) atom. Cl(1) is bonded in an L-shaped geometry to one Ca(1) and one Ca(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca2B5H2ClO10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.324
_cell_length_b   6.548
_cell_length_c   6.646
_cell_angle_alpha   73.868
_cell_angle_beta   61.917
_cell_angle_gamma   61.516
_symmetry_Int_Tables_number   1
_cell_volume   212.916
_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
  Ca  Ca0  1  0.898  0.452  0.443  1.0
  Ca  Ca1  1  0.996  0.005  0.999  1.0
  B  B2  1  0.528  0.475  0.131  1.0
  B  B3  1  0.398  0.329  0.911  1.0
  B  B4  1  0.931  0.550  0.972  1.0
  B  B5  1  0.519  0.881  0.995  1.0
  B  B6  1  0.288  0.449  0.580  1.0
  H  H7  1  0.580  0.971  0.463  1.0
  H  H8  1  0.823  0.929  0.509  1.0
  Cl  Cl9  1  0.184  0.988  0.531  1.0
  O  O10  1  0.773  0.887  0.413  1.0
  O  O11  1  0.326  0.450  0.359  1.0
  O  O12  1  0.413  0.723  0.040  1.0
  O  O13  1  0.776  0.421  0.144  1.0
  O  O14  1  0.593  0.309  0.979  1.0
  O  O15  1  0.366  0.106  0.949  1.0
  O  O16  1  0.481  0.395  0.653  1.0
  O  O17  1  0.140  0.506  0.034  1.0
  O  O18  1  0.766  0.807  0.985  1.0
  O  O19  1  0.030  0.487  0.735  1.0
[/CIF]
.