The material structure described by NaMn2BSi3H2O11 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(2), one O(5), one O(7), one O(8), and one O(9) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(2), one O(6), and two equivalent O(4) atoms to form MnO6 octahedra that share  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(3)O4 tetrahedra, and  an edgeedge with one Mn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(11), one O(2), one O(4), one O(6), and two equivalent O(1) atoms. B(1) is bonded to one O(10), one O(11), one O(3), and one O(5) atom to form BO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 63°. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(6), one O(7), and one O(9) atom to form SiO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-61°. In the second Si site, Si(2) is bonded to one O(1), one O(3), one O(8), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. In the third Si site, Si(3) is bonded to one O(4), one O(5), one O(7), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 60-63°. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(10) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(11) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1), two equivalent Mn(2), and one Si(2) atom to form distorted OMn3Si tetrahedra that share corners with two equivalent O(4)Mn3Si tetrahedra, corners with three equivalent O(2)NaMn2Si trigonal pyramids,  an edgeedge with one O(1)Mn3Si tetrahedra, and  an edgeedge with one O(4)Mn3Si tetrahedra. In the second O site, O(2) is bonded to one Na(1), one Mn(1), one Mn(2), and one Si(1) atom to form a mixture of distorted corner and edge-sharing ONaMn2Si trigonal pyramids. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one B(1) and one Si(2) atom. In the fourth O site, O(4) is bonded to one Mn(2), two equivalent Mn(1), and one Si(3) atom to form distorted OMn3Si tetrahedra that share corners with two equivalent O(1)Mn3Si tetrahedra,  a cornercorner with one O(2)NaMn2Si trigonal pyramid,  an edgeedge with one O(1)Mn3Si tetrahedra,  an edgeedge with one O(4)Mn3Si tetrahedra, and  an edgeedge with one O(2)NaMn2Si trigonal pyramid. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one B(1), and one Si(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Si(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one Si(1), and one Si(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Si(2), and one Si(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Na(1), one Si(1), and one Si(2) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Na(1), one Mn(1), one B(1), and one H(1) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one Na(1), one Mn(2), one B(1), and one H(2) atom. is represented by the CIF card [CIF]
data_NaMn2Si3BH2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.921
_cell_length_b   7.635
_cell_length_c   9.021
_cell_angle_alpha   100.288
_cell_angle_beta   102.322
_cell_angle_gamma   102.709
_symmetry_Int_Tables_number   1
_cell_volume   441.430
_cell_formula_units_Z   2
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
  Na  Na0  1  0.113  0.351  0.185  1.0
  Na  Na1  1  0.887  0.649  0.815  1.0
  Mn  Mn2  1  0.871  0.125  0.390  1.0
  Mn  Mn3  1  0.129  0.875  0.610  1.0
  Mn  Mn4  1  0.381  0.130  0.402  1.0
  Mn  Mn5  1  0.619  0.870  0.598  1.0
  Si  Si6  1  0.269  0.472  0.617  1.0
  Si  Si7  1  0.731  0.528  0.383  1.0
  Si  Si8  1  0.538  0.257  0.784  1.0
  Si  Si9  1  0.462  0.743  0.216  1.0
  Si  Si10  1  0.983  0.259  0.773  1.0
  Si  Si11  1  0.017  0.741  0.227  1.0
  B  B12  1  0.278  0.127  0.967  1.0
  B  B13  1  0.722  0.873  0.033  1.0
  H  H14  1  0.703  0.137  0.084  1.0
  H  H15  1  0.297  0.863  0.916  1.0
  H  H16  1  0.453  0.238  0.183  1.0
  H  H17  1  0.547  0.762  0.817  1.0
  O  O18  1  0.560  0.922  0.364  1.0
  O  O19  1  0.440  0.078  0.636  1.0
  O  O20  1  0.187  0.315  0.452  1.0
  O  O21  1  0.813  0.685  0.548  1.0
  O  O22  1  0.477  0.214  0.940  1.0
  O  O23  1  0.523  0.786  0.060  1.0
  O  O24  1  0.914  0.078  0.628  1.0
  O  O25  1  0.086  0.922  0.372  1.0
  O  O26  1  0.126  0.228  0.926  1.0
  O  O27  1  0.874  0.772  0.074  1.0
  O  O28  1  0.673  0.315  0.396  1.0
  O  O29  1  0.327  0.685  0.604  1.0
  O  O30  1  0.092  0.444  0.718  1.0
  O  O31  1  0.908  0.556  0.282  1.0
  O  O32  1  0.791  0.321  0.829  1.0
  O  O33  1  0.209  0.679  0.171  1.0
  O  O34  1  0.475  0.438  0.731  1.0
  O  O35  1  0.525  0.562  0.269  1.0
  O  O36  1  0.803  0.072  0.125  1.0
  O  O37  1  0.197  0.928  0.875  1.0
  O  O38  1  0.322  0.142  0.140  1.0
  O  O39  1  0.678  0.858  0.860  1.0
[/CIF]
.
The material structure described by NaMn2BSi3H2O11 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(2), one O(5), one O(7), one O(8), and one O(9) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(2), one O(6), and two equivalent O(4) atoms to form MnO6 octahedra that share  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(3)O4 tetrahedra, and  an edgeedge with one Mn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(11), one O(2), one O(4), one O(6), and two equivalent O(1) atoms. B(1) is bonded to one O(10), one O(11), one O(3), and one O(5) atom to form BO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 63°. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(6), one O(7), and one O(9) atom to form SiO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-61°. In the second Si site, Si(2) is bonded to one O(1), one O(3), one O(8), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. In the third Si site, Si(3) is bonded to one O(4), one O(5), one O(7), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one B(1)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 60-63°. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(10) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(11) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1), two equivalent Mn(2), and one Si(2) atom to form distorted OMn3Si tetrahedra that share corners with two equivalent O(4)Mn3Si tetrahedra, corners with three equivalent O(2)NaMn2Si trigonal pyramids,  an edgeedge with one O(1)Mn3Si tetrahedra, and  an edgeedge with one O(4)Mn3Si tetrahedra. In the second O site, O(2) is bonded to one Na(1), one Mn(1), one Mn(2), and one Si(1) atom to form a mixture of distorted corner and edge-sharing ONaMn2Si trigonal pyramids. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one B(1) and one Si(2) atom. In the fourth O site, O(4) is bonded to one Mn(2), two equivalent Mn(1), and one Si(3) atom to form distorted OMn3Si tetrahedra that share corners with two equivalent O(1)Mn3Si tetrahedra,  a cornercorner with one O(2)NaMn2Si trigonal pyramid,  an edgeedge with one O(1)Mn3Si tetrahedra,  an edgeedge with one O(4)Mn3Si tetrahedra, and  an edgeedge with one O(2)NaMn2Si trigonal pyramid. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one B(1), and one Si(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Si(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one Si(1), and one Si(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Si(2), and one Si(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Na(1), one Si(1), and one Si(2) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Na(1), one Mn(1), one B(1), and one H(1) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one Na(1), one Mn(2), one B(1), and one H(2) atom. is represented by the CIF card [CIF]
data_NaMn2Si3BH2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.921
_cell_length_b   7.635
_cell_length_c   9.021
_cell_angle_alpha   100.288
_cell_angle_beta   102.322
_cell_angle_gamma   102.709
_symmetry_Int_Tables_number   1
_cell_volume   441.430
_cell_formula_units_Z   2
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
  Na  Na0  1  0.113  0.351  0.185  1.0
  Na  Na1  1  0.887  0.649  0.815  1.0
  Mn  Mn2  1  0.871  0.125  0.390  1.0
  Mn  Mn3  1  0.129  0.875  0.610  1.0
  Mn  Mn4  1  0.381  0.130  0.402  1.0
  Mn  Mn5  1  0.619  0.870  0.598  1.0
  Si  Si6  1  0.269  0.472  0.617  1.0
  Si  Si7  1  0.731  0.528  0.383  1.0
  Si  Si8  1  0.538  0.257  0.784  1.0
  Si  Si9  1  0.462  0.743  0.216  1.0
  Si  Si10  1  0.983  0.259  0.773  1.0
  Si  Si11  1  0.017  0.741  0.227  1.0
  B  B12  1  0.278  0.127  0.967  1.0
  B  B13  1  0.722  0.873  0.033  1.0
  H  H14  1  0.703  0.137  0.084  1.0
  H  H15  1  0.297  0.863  0.916  1.0
  H  H16  1  0.453  0.238  0.183  1.0
  H  H17  1  0.547  0.762  0.817  1.0
  O  O18  1  0.560  0.922  0.364  1.0
  O  O19  1  0.440  0.078  0.636  1.0
  O  O20  1  0.187  0.315  0.452  1.0
  O  O21  1  0.813  0.685  0.548  1.0
  O  O22  1  0.477  0.214  0.940  1.0
  O  O23  1  0.523  0.786  0.060  1.0
  O  O24  1  0.914  0.078  0.628  1.0
  O  O25  1  0.086  0.922  0.372  1.0
  O  O26  1  0.126  0.228  0.926  1.0
  O  O27  1  0.874  0.772  0.074  1.0
  O  O28  1  0.673  0.315  0.396  1.0
  O  O29  1  0.327  0.685  0.604  1.0
  O  O30  1  0.092  0.444  0.718  1.0
  O  O31  1  0.908  0.556  0.282  1.0
  O  O32  1  0.791  0.321  0.829  1.0
  O  O33  1  0.209  0.679  0.171  1.0
  O  O34  1  0.475  0.438  0.731  1.0
  O  O35  1  0.525  0.562  0.269  1.0
  O  O36  1  0.803  0.072  0.125  1.0
  O  O37  1  0.197  0.928  0.875  1.0
  O  O38  1  0.322  0.142  0.140  1.0
  O  O39  1  0.678  0.858  0.860  1.0
[/CIF]
.