The material described by Re25Co3B12 crystallizes in the monoclinic Pm space group. There are seventeen inequivalent Re sites. In the first Re site, Re(1) is bonded in a 2-coordinate geometry to one B(1), one B(3), one B(5), and one B(7) atom. In the second Re site, Re(2) is bonded in a 2-coordinate geometry to one B(2), one B(4), one B(6), and one B(8) atom. In the third Re site, Re(3) is bonded in a 2-coordinate geometry to two equivalent B(1) and two equivalent B(6) atoms. In the fourth Re site, Re(4) is bonded in a 2-coordinate geometry to two equivalent B(2) and two equivalent B(5) atoms. In the fifth Re site, Re(5) is bonded in a 2-coordinate geometry to one B(1), one B(3), one B(5), and one B(7) atom. In the sixth Re site, Re(6) is bonded in a 2-coordinate geometry to one B(4), one B(6), and one B(8) atom. In the seventh Re site, Re(7) is bonded in a distorted L-shaped geometry to two equivalent B(5) atoms. In the eighth Re site, Re(8) is bonded in a 2-coordinate geometry to two equivalent B(1) and two equivalent B(6) atoms. In the ninth Re site, Re(9) is bonded in a 3-coordinate geometry to one B(4) and two equivalent B(2) atoms. In the tenth Re site, Re(10) is bonded in a 3-coordinate geometry to one B(2), one B(3), and one B(5) atom. In the eleventh Re site, Re(11) is bonded in a 3-coordinate geometry to one B(1), one B(4), and one B(6) atom. In the twelfth Re site, Re(12) is bonded in a 3-coordinate geometry to one B(7) and two equivalent B(1) atoms. In the thirteenth Re site, Re(13) is bonded in a 3-coordinate geometry to one B(8) and two equivalent B(2) atoms. In the fourteenth Re site, Re(14) is bonded in a 3-coordinate geometry to one B(1), one B(6), and one B(7) atom. In the fifteenth Re site, Re(15) is bonded in a 3-coordinate geometry to one B(2), one B(5), and one B(8) atom. In the sixteenth Re site, Re(16) is bonded in a 3-coordinate geometry to one B(3) and two equivalent B(5) atoms. In the seventeenth Re site, Re(17) is bonded in a 3-coordinate geometry to one B(4) and two equivalent B(6) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 3-coordinate geometry to one B(7) and two equivalent B(5) atoms. In the second Co site, Co(2) is bonded in a 3-coordinate geometry to one B(8) and two equivalent B(6) atoms. In the third Co site, Co(3) is bonded in a 3-coordinate geometry to one B(3) and two equivalent B(1) atoms. There are eight inequivalent B sites. In the first B site, B(1) is bonded in a 8-coordinate geometry to one Re(1), one Re(11), one Re(12), one Re(14), one Re(3), one Re(5), one Re(8), and one Co(3) atom. In the second B site, B(2) is bonded in a 6-coordinate geometry to one Re(10), one Re(13), one Re(15), one Re(2), one Re(4), and one Re(9) atom. In the third B site, B(3) is bonded in a 8-coordinate geometry to one Re(16), two equivalent Re(1), two equivalent Re(10), two equivalent Re(5), and one Co(3) atom. In the fourth B site, B(4) is bonded in a 8-coordinate geometry to one Re(17), one Re(9), two equivalent Re(11), two equivalent Re(2), and two equivalent Re(6) atoms. In the fifth B site, B(5) is bonded in a 8-coordinate geometry to one Re(1), one Re(10), one Re(15), one Re(16), one Re(4), one Re(5), one Re(7), and one Co(1) atom. In the sixth B site, B(6) is bonded in a 8-coordinate geometry to one Re(11), one Re(14), one Re(17), one Re(2), one Re(3), one Re(6), one Re(8), and one Co(2) atom. In the seventh B site, B(7) is bonded in a 8-coordinate geometry to one Re(12), two equivalent Re(1), two equivalent Re(14), two equivalent Re(5), and one Co(1) atom. In the eighth B site, B(8) is bonded in a 8-coordinate geometry to one Re(13), two equivalent Re(15), two equivalent Re(2), two equivalent Re(6), and one Co(2) atom. is represented by the CIF file [CIF]
data_Co3Re25B12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.438
_cell_length_b   4.944
_cell_length_c   12.917
_cell_angle_alpha   89.880
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   475.001
_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
  Co  Co0  1  0.500  0.430  0.335  1.0
  Co  Co1  1  0.000  0.433  0.834  1.0
  Co  Co2  1  0.000  0.928  0.166  1.0
  Re  Re3  1  0.818  0.459  0.227  1.0
  Re  Re4  1  0.314  0.457  0.728  1.0
  Re  Re5  1  0.182  0.459  0.227  1.0
  Re  Re6  1  0.686  0.457  0.728  1.0
  Re  Re7  1  0.000  0.456  0.045  1.0
  Re  Re8  1  0.500  0.451  0.543  1.0
  Re  Re9  1  0.684  0.958  0.271  1.0
  Re  Re10  1  0.179  0.952  0.775  1.0
  Re  Re11  1  0.316  0.958  0.271  1.0
  Re  Re12  1  0.821  0.952  0.775  1.0
  Re  Re13  1  0.500  0.952  0.450  1.0
  Re  Re14  1  0.000  0.956  0.957  1.0
  Re  Re15  1  0.500  0.912  0.666  1.0
  Re  Re16  1  0.185  0.249  0.437  1.0
  Re  Re17  1  0.685  0.248  0.939  1.0
  Re  Re18  1  0.815  0.249  0.437  1.0
  Re  Re19  1  0.315  0.248  0.939  1.0
  Re  Re20  1  0.500  0.252  0.124  1.0
  Re  Re21  1  0.000  0.248  0.625  1.0
  Re  Re22  1  0.314  0.749  0.063  1.0
  Re  Re23  1  0.816  0.749  0.560  1.0
  Re  Re24  1  0.686  0.749  0.063  1.0
  Re  Re25  1  0.184  0.749  0.560  1.0
  Re  Re26  1  0.000  0.750  0.374  1.0
  Re  Re27  1  0.500  0.749  0.879  1.0
  B  B28  1  0.208  0.148  0.098  1.0
  B  B29  1  0.715  0.158  0.595  1.0
  B  B30  1  0.792  0.148  0.098  1.0
  B  B31  1  0.285  0.158  0.595  1.0
  B  B32  1  0.000  0.146  0.304  1.0
  B  B33  1  0.500  0.156  0.809  1.0
  B  B34  1  0.291  0.646  0.402  1.0
  B  B35  1  0.792  0.647  0.905  1.0
  B  B36  1  0.709  0.646  0.402  1.0
  B  B37  1  0.208  0.647  0.905  1.0
  B  B38  1  0.500  0.647  0.195  1.0
  B  B39  1  0.000  0.646  0.695  1.0
[/CIF]
.
The material described by Re25Co3B12 crystallizes in the monoclinic Pm space group. There are seventeen inequivalent Re sites. In the first Re site, Re(1) is bonded in a 2-coordinate geometry to one B(1), one B(3), one B(5), and one B(7) atom. In the second Re site, Re(2) is bonded in a 2-coordinate geometry to one B(2), one B(4), one B(6), and one B(8) atom. In the third Re site, Re(3) is bonded in a 2-coordinate geometry to two equivalent B(1) and two equivalent B(6) atoms. In the fourth Re site, Re(4) is bonded in a 2-coordinate geometry to two equivalent B(2) and two equivalent B(5) atoms. In the fifth Re site, Re(5) is bonded in a 2-coordinate geometry to one B(1), one B(3), one B(5), and one B(7) atom. In the sixth Re site, Re(6) is bonded in a 2-coordinate geometry to one B(4), one B(6), and one B(8) atom. In the seventh Re site, Re(7) is bonded in a distorted L-shaped geometry to two equivalent B(5) atoms. In the eighth Re site, Re(8) is bonded in a 2-coordinate geometry to two equivalent B(1) and two equivalent B(6) atoms. In the ninth Re site, Re(9) is bonded in a 3-coordinate geometry to one B(4) and two equivalent B(2) atoms. In the tenth Re site, Re(10) is bonded in a 3-coordinate geometry to one B(2), one B(3), and one B(5) atom. In the eleventh Re site, Re(11) is bonded in a 3-coordinate geometry to one B(1), one B(4), and one B(6) atom. In the twelfth Re site, Re(12) is bonded in a 3-coordinate geometry to one B(7) and two equivalent B(1) atoms. In the thirteenth Re site, Re(13) is bonded in a 3-coordinate geometry to one B(8) and two equivalent B(2) atoms. In the fourteenth Re site, Re(14) is bonded in a 3-coordinate geometry to one B(1), one B(6), and one B(7) atom. In the fifteenth Re site, Re(15) is bonded in a 3-coordinate geometry to one B(2), one B(5), and one B(8) atom. In the sixteenth Re site, Re(16) is bonded in a 3-coordinate geometry to one B(3) and two equivalent B(5) atoms. In the seventeenth Re site, Re(17) is bonded in a 3-coordinate geometry to one B(4) and two equivalent B(6) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 3-coordinate geometry to one B(7) and two equivalent B(5) atoms. In the second Co site, Co(2) is bonded in a 3-coordinate geometry to one B(8) and two equivalent B(6) atoms. In the third Co site, Co(3) is bonded in a 3-coordinate geometry to one B(3) and two equivalent B(1) atoms. There are eight inequivalent B sites. In the first B site, B(1) is bonded in a 8-coordinate geometry to one Re(1), one Re(11), one Re(12), one Re(14), one Re(3), one Re(5), one Re(8), and one Co(3) atom. In the second B site, B(2) is bonded in a 6-coordinate geometry to one Re(10), one Re(13), one Re(15), one Re(2), one Re(4), and one Re(9) atom. In the third B site, B(3) is bonded in a 8-coordinate geometry to one Re(16), two equivalent Re(1), two equivalent Re(10), two equivalent Re(5), and one Co(3) atom. In the fourth B site, B(4) is bonded in a 8-coordinate geometry to one Re(17), one Re(9), two equivalent Re(11), two equivalent Re(2), and two equivalent Re(6) atoms. In the fifth B site, B(5) is bonded in a 8-coordinate geometry to one Re(1), one Re(10), one Re(15), one Re(16), one Re(4), one Re(5), one Re(7), and one Co(1) atom. In the sixth B site, B(6) is bonded in a 8-coordinate geometry to one Re(11), one Re(14), one Re(17), one Re(2), one Re(3), one Re(6), one Re(8), and one Co(2) atom. In the seventh B site, B(7) is bonded in a 8-coordinate geometry to one Re(12), two equivalent Re(1), two equivalent Re(14), two equivalent Re(5), and one Co(1) atom. In the eighth B site, B(8) is bonded in a 8-coordinate geometry to one Re(13), two equivalent Re(15), two equivalent Re(2), two equivalent Re(6), and one Co(2) atom. is represented by the CIF file [CIF]
data_Co3Re25B12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.438
_cell_length_b   4.944
_cell_length_c   12.917
_cell_angle_alpha   89.880
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   475.001
_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
  Co  Co0  1  0.500  0.430  0.335  1.0
  Co  Co1  1  0.000  0.433  0.834  1.0
  Co  Co2  1  0.000  0.928  0.166  1.0
  Re  Re3  1  0.818  0.459  0.227  1.0
  Re  Re4  1  0.314  0.457  0.728  1.0
  Re  Re5  1  0.182  0.459  0.227  1.0
  Re  Re6  1  0.686  0.457  0.728  1.0
  Re  Re7  1  0.000  0.456  0.045  1.0
  Re  Re8  1  0.500  0.451  0.543  1.0
  Re  Re9  1  0.684  0.958  0.271  1.0
  Re  Re10  1  0.179  0.952  0.775  1.0
  Re  Re11  1  0.316  0.958  0.271  1.0
  Re  Re12  1  0.821  0.952  0.775  1.0
  Re  Re13  1  0.500  0.952  0.450  1.0
  Re  Re14  1  0.000  0.956  0.957  1.0
  Re  Re15  1  0.500  0.912  0.666  1.0
  Re  Re16  1  0.185  0.249  0.437  1.0
  Re  Re17  1  0.685  0.248  0.939  1.0
  Re  Re18  1  0.815  0.249  0.437  1.0
  Re  Re19  1  0.315  0.248  0.939  1.0
  Re  Re20  1  0.500  0.252  0.124  1.0
  Re  Re21  1  0.000  0.248  0.625  1.0
  Re  Re22  1  0.314  0.749  0.063  1.0
  Re  Re23  1  0.816  0.749  0.560  1.0
  Re  Re24  1  0.686  0.749  0.063  1.0
  Re  Re25  1  0.184  0.749  0.560  1.0
  Re  Re26  1  0.000  0.750  0.374  1.0
  Re  Re27  1  0.500  0.749  0.879  1.0
  B  B28  1  0.208  0.148  0.098  1.0
  B  B29  1  0.715  0.158  0.595  1.0
  B  B30  1  0.792  0.148  0.098  1.0
  B  B31  1  0.285  0.158  0.595  1.0
  B  B32  1  0.000  0.146  0.304  1.0
  B  B33  1  0.500  0.156  0.809  1.0
  B  B34  1  0.291  0.646  0.402  1.0
  B  B35  1  0.792  0.647  0.905  1.0
  B  B36  1  0.709  0.646  0.402  1.0
  B  B37  1  0.208  0.647  0.905  1.0
  B  B38  1  0.500  0.647  0.195  1.0
  B  B39  1  0.000  0.646  0.695  1.0
[/CIF]
.