The structure described by Sc7Cr5Ge9 crystallizes in the orthorhombic Fmmm space group. There are four inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 9-coordinate geometry to two equivalent Cr(2), one Ge(2), two equivalent Ge(4), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the second Sc site, Sc(2) is bonded in a 7-coordinate geometry to one Ge(1), one Ge(2), one Ge(3), two equivalent Ge(4), and two equivalent Ge(5) atoms. In the third Sc site, Sc(3) is bonded to one Ge(6), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(4) atoms to form distorted ScGe7 pentagonal bipyramids that share  an edgeedge with one Sc(3)Ge7 pentagonal bipyramid and faces with two equivalent Sc(4)CrGe6 pentagonal bipyramids. In the fourth Sc site, Sc(4) is bonded to one Cr(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms to form distorted ScCrGe6 pentagonal bipyramids that share  an edgeedge with one Sc(4)CrGe6 pentagonal bipyramid and faces with two equivalent Sc(3)Ge7 pentagonal bipyramids. There are two inequivalent Cr sites. In the first Cr site, Cr(2) is bonded in a 11-coordinate geometry to one Sc(4), two equivalent Sc(1), four equivalent Cr(1), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the second Cr site, Cr(1) is bonded in a 6-coordinate geometry to one Cr(2), one Ge(3), one Ge(4), one Ge(5), one Ge(6), and two equivalent Ge(1) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Sc(3), one Sc(4), two equivalent Sc(2), four equivalent Cr(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Sc(1), two equivalent Sc(3), two equivalent Sc(4), and four equivalent Sc(2) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to four equivalent Sc(2) and four equivalent Cr(1) atoms. In the fourth Ge site, Ge(4) is bonded in a 10-coordinate geometry to one Sc(1), one Sc(3), four equivalent Sc(2), two equivalent Cr(1), one Ge(4), and one Ge(6) atom. In the fifth Ge site, Ge(5) is bonded in a 10-coordinate geometry to one Sc(1), one Sc(4), four equivalent Sc(2), one Cr(2), two equivalent Cr(1), and one Ge(5) atom. In the sixth Ge site, Ge(6) is bonded in a 11-coordinate geometry to one Sc(3), two equivalent Sc(1), two equivalent Cr(2), four equivalent Cr(1), and two equivalent Ge(4) atoms. is represented by the CIF file [CIF]
data_Sc7Cr5Ge9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.966
_cell_length_b   9.966
_cell_length_c   9.954
_cell_angle_alpha   60.235
_cell_angle_beta   60.235
_cell_angle_gamma   90.478
_symmetry_Int_Tables_number   1
_cell_volume   701.102
_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
  Sc  Sc0  1  0.837  0.837  0.325  1.0
  Sc  Sc1  1  0.163  0.163  0.675  1.0
  Sc  Sc2  1  0.435  0.687  0.623  1.0
  Sc  Sc3  1  0.942  0.690  0.623  1.0
  Sc  Sc4  1  0.690  0.942  0.623  1.0
  Sc  Sc5  1  0.687  0.435  0.623  1.0
  Sc  Sc6  1  0.565  0.313  0.377  1.0
  Sc  Sc7  1  0.058  0.310  0.377  1.0
  Sc  Sc8  1  0.310  0.058  0.377  1.0
  Sc  Sc9  1  0.313  0.565  0.377  1.0
  Sc  Sc10  1  0.678  0.322  0.000  1.0
  Sc  Sc11  1  0.322  0.678  0.000  1.0
  Sc  Sc12  1  0.320  0.320  0.000  1.0
  Sc  Sc13  1  0.680  0.680  0.000  1.0
  Cr  Cr14  1  0.583  0.904  0.194  1.0
  Cr  Cr15  1  0.223  0.902  0.194  1.0
  Cr  Cr16  1  0.902  0.223  0.194  1.0
  Cr  Cr17  1  0.904  0.583  0.194  1.0
  Cr  Cr18  1  0.417  0.096  0.806  1.0
  Cr  Cr19  1  0.777  0.098  0.806  1.0
  Cr  Cr20  1  0.098  0.777  0.806  1.0
  Cr  Cr21  1  0.096  0.417  0.806  1.0
  Cr  Cr22  1  0.123  0.123  0.000  1.0
  Cr  Cr23  1  0.877  0.877  0.000  1.0
  Ge  Ge24  1  0.501  0.874  0.000  1.0
  Ge  Ge25  1  0.499  0.126  0.000  1.0
  Ge  Ge26  1  0.874  0.501  0.000  1.0
  Ge  Ge27  1  0.126  0.499  0.000  1.0
  Ge  Ge28  1  0.611  0.611  0.778  1.0
  Ge  Ge29  1  0.389  0.389  0.222  1.0
  Ge  Ge30  1  0.250  0.750  0.500  1.0
  Ge  Ge31  1  0.750  0.250  0.500  1.0
  Ge  Ge32  1  0.623  0.038  0.339  1.0
  Ge  Ge33  1  0.038  0.623  0.339  1.0
  Ge  Ge34  1  0.039  0.039  0.328  1.0
  Ge  Ge35  1  0.633  0.633  0.328  1.0
  Ge  Ge36  1  0.377  0.962  0.661  1.0
  Ge  Ge37  1  0.962  0.377  0.661  1.0
  Ge  Ge38  1  0.961  0.961  0.672  1.0
  Ge  Ge39  1  0.367  0.367  0.672  1.0
  Ge  Ge40  1  0.874  0.126  0.000  1.0
  Ge  Ge41  1  0.126  0.874  0.000  1.0
[/CIF]
.
The structure described by Sc7Cr5Ge9 crystallizes in the orthorhombic Fmmm space group. There are four inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 9-coordinate geometry to two equivalent Cr(2), one Ge(2), two equivalent Ge(4), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the second Sc site, Sc(2) is bonded in a 7-coordinate geometry to one Ge(1), one Ge(2), one Ge(3), two equivalent Ge(4), and two equivalent Ge(5) atoms. In the third Sc site, Sc(3) is bonded to one Ge(6), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(4) atoms to form distorted ScGe7 pentagonal bipyramids that share  an edgeedge with one Sc(3)Ge7 pentagonal bipyramid and faces with two equivalent Sc(4)CrGe6 pentagonal bipyramids. In the fourth Sc site, Sc(4) is bonded to one Cr(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms to form distorted ScCrGe6 pentagonal bipyramids that share  an edgeedge with one Sc(4)CrGe6 pentagonal bipyramid and faces with two equivalent Sc(3)Ge7 pentagonal bipyramids. There are two inequivalent Cr sites. In the first Cr site, Cr(2) is bonded in a 11-coordinate geometry to one Sc(4), two equivalent Sc(1), four equivalent Cr(1), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the second Cr site, Cr(1) is bonded in a 6-coordinate geometry to one Cr(2), one Ge(3), one Ge(4), one Ge(5), one Ge(6), and two equivalent Ge(1) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Sc(3), one Sc(4), two equivalent Sc(2), four equivalent Cr(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Sc(1), two equivalent Sc(3), two equivalent Sc(4), and four equivalent Sc(2) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to four equivalent Sc(2) and four equivalent Cr(1) atoms. In the fourth Ge site, Ge(4) is bonded in a 10-coordinate geometry to one Sc(1), one Sc(3), four equivalent Sc(2), two equivalent Cr(1), one Ge(4), and one Ge(6) atom. In the fifth Ge site, Ge(5) is bonded in a 10-coordinate geometry to one Sc(1), one Sc(4), four equivalent Sc(2), one Cr(2), two equivalent Cr(1), and one Ge(5) atom. In the sixth Ge site, Ge(6) is bonded in a 11-coordinate geometry to one Sc(3), two equivalent Sc(1), two equivalent Cr(2), four equivalent Cr(1), and two equivalent Ge(4) atoms. is represented by the CIF file [CIF]
data_Sc7Cr5Ge9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.966
_cell_length_b   9.966
_cell_length_c   9.954
_cell_angle_alpha   60.235
_cell_angle_beta   60.235
_cell_angle_gamma   90.478
_symmetry_Int_Tables_number   1
_cell_volume   701.102
_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
  Sc  Sc0  1  0.837  0.837  0.325  1.0
  Sc  Sc1  1  0.163  0.163  0.675  1.0
  Sc  Sc2  1  0.435  0.687  0.623  1.0
  Sc  Sc3  1  0.942  0.690  0.623  1.0
  Sc  Sc4  1  0.690  0.942  0.623  1.0
  Sc  Sc5  1  0.687  0.435  0.623  1.0
  Sc  Sc6  1  0.565  0.313  0.377  1.0
  Sc  Sc7  1  0.058  0.310  0.377  1.0
  Sc  Sc8  1  0.310  0.058  0.377  1.0
  Sc  Sc9  1  0.313  0.565  0.377  1.0
  Sc  Sc10  1  0.678  0.322  0.000  1.0
  Sc  Sc11  1  0.322  0.678  0.000  1.0
  Sc  Sc12  1  0.320  0.320  0.000  1.0
  Sc  Sc13  1  0.680  0.680  0.000  1.0
  Cr  Cr14  1  0.583  0.904  0.194  1.0
  Cr  Cr15  1  0.223  0.902  0.194  1.0
  Cr  Cr16  1  0.902  0.223  0.194  1.0
  Cr  Cr17  1  0.904  0.583  0.194  1.0
  Cr  Cr18  1  0.417  0.096  0.806  1.0
  Cr  Cr19  1  0.777  0.098  0.806  1.0
  Cr  Cr20  1  0.098  0.777  0.806  1.0
  Cr  Cr21  1  0.096  0.417  0.806  1.0
  Cr  Cr22  1  0.123  0.123  0.000  1.0
  Cr  Cr23  1  0.877  0.877  0.000  1.0
  Ge  Ge24  1  0.501  0.874  0.000  1.0
  Ge  Ge25  1  0.499  0.126  0.000  1.0
  Ge  Ge26  1  0.874  0.501  0.000  1.0
  Ge  Ge27  1  0.126  0.499  0.000  1.0
  Ge  Ge28  1  0.611  0.611  0.778  1.0
  Ge  Ge29  1  0.389  0.389  0.222  1.0
  Ge  Ge30  1  0.250  0.750  0.500  1.0
  Ge  Ge31  1  0.750  0.250  0.500  1.0
  Ge  Ge32  1  0.623  0.038  0.339  1.0
  Ge  Ge33  1  0.038  0.623  0.339  1.0
  Ge  Ge34  1  0.039  0.039  0.328  1.0
  Ge  Ge35  1  0.633  0.633  0.328  1.0
  Ge  Ge36  1  0.377  0.962  0.661  1.0
  Ge  Ge37  1  0.962  0.377  0.661  1.0
  Ge  Ge38  1  0.961  0.961  0.672  1.0
  Ge  Ge39  1  0.367  0.367  0.672  1.0
  Ge  Ge40  1  0.874  0.126  0.000  1.0
  Ge  Ge41  1  0.126  0.874  0.000  1.0
[/CIF]
.