The crystal structure described by ZrCrGe2 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 8-coordinate geometry to one Ge(4), one Ge(5), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Zr site, Zr(2) is bonded to two equivalent Ge(1), two equivalent Ge(2), and three equivalent Ge(4) atoms to form distorted ZrGe7 pentagonal bipyramids that share corners with two equivalent Cr(2)Ge6 cuboctahedra, corners with two equivalent Zr(2)Ge7 pentagonal bipyramids, edges with three equivalent Zr(2)Ge7 pentagonal bipyramids, and faces with two equivalent Cr(2)Ge6 cuboctahedra. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(3), one Ge(4), one Ge(5), and two equivalent Ge(1) atoms. In the second Cr site, Cr(2) is bonded to two equivalent Ge(1), two equivalent Ge(4), and two equivalent Ge(5) atoms to form distorted CrGe6 cuboctahedra that share corners with two equivalent Zr(2)Ge7 pentagonal bipyramids, edges with two equivalent Cr(2)Ge6 cuboctahedra, and faces with two equivalent Zr(2)Ge7 pentagonal bipyramids. There are five inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Zr(2), four equivalent Zr(1), two equivalent Cr(1), and one Ge(2) atom. In the second Ge site, Ge(3) is bonded in a 7-coordinate geometry to four equivalent Zr(1), two equivalent Cr(1), and one Ge(3) atom. In the third Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent Zr(1), three equivalent Zr(2), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the fourth Ge site, Ge(5) is bonded in a 6-coordinate geometry to two equivalent Zr(1), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the fifth Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Zr(2), two equivalent Zr(1), one Cr(2), two equivalent Cr(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZrCrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.207
_cell_length_b   9.365
_cell_length_c   10.116
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   777.526
_cell_formula_units_Z   12
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
  Zr  Zr0  1  0.745  0.829  0.047  1.0
  Zr  Zr1  1  0.745  0.171  0.953  1.0
  Zr  Zr2  1  0.255  0.671  0.547  1.0
  Zr  Zr3  1  0.255  0.329  0.453  1.0
  Zr  Zr4  1  0.255  0.171  0.953  1.0
  Zr  Zr5  1  0.255  0.829  0.047  1.0
  Zr  Zr6  1  0.745  0.329  0.453  1.0
  Zr  Zr7  1  0.745  0.671  0.547  1.0
  Zr  Zr8  1  0.500  0.834  0.321  1.0
  Zr  Zr9  1  0.500  0.166  0.679  1.0
  Zr  Zr10  1  0.500  0.666  0.821  1.0
  Zr  Zr11  1  0.500  0.334  0.179  1.0
  Cr  Cr12  1  0.750  0.583  0.245  1.0
  Cr  Cr13  1  0.750  0.417  0.755  1.0
  Cr  Cr14  1  0.250  0.917  0.745  1.0
  Cr  Cr15  1  0.250  0.083  0.255  1.0
  Cr  Cr16  1  0.250  0.417  0.755  1.0
  Cr  Cr17  1  0.250  0.583  0.245  1.0
  Cr  Cr18  1  0.750  0.083  0.255  1.0
  Cr  Cr19  1  0.750  0.917  0.745  1.0
  Cr  Cr20  1  0.745  0.000  0.500  1.0
  Cr  Cr21  1  0.255  0.500  0.000  1.0
  Cr  Cr22  1  0.255  0.000  0.500  1.0
  Cr  Cr23  1  0.745  0.500  0.000  1.0
  Ge  Ge24  1  0.843  0.832  0.318  1.0
  Ge  Ge25  1  0.843  0.168  0.682  1.0
  Ge  Ge26  1  0.157  0.668  0.818  1.0
  Ge  Ge27  1  0.157  0.332  0.182  1.0
  Ge  Ge28  1  0.157  0.168  0.682  1.0
  Ge  Ge29  1  0.157  0.832  0.318  1.0
  Ge  Ge30  1  0.843  0.332  0.182  1.0
  Ge  Ge31  1  0.843  0.668  0.818  1.0
  Ge  Ge32  1  0.500  0.541  0.378  1.0
  Ge  Ge33  1  0.500  0.459  0.622  1.0
  Ge  Ge34  1  0.500  0.959  0.878  1.0
  Ge  Ge35  1  0.500  0.041  0.122  1.0
  Ge  Ge36  1  0.000  0.545  0.376  1.0
  Ge  Ge37  1  0.000  0.455  0.624  1.0
  Ge  Ge38  1  0.000  0.955  0.876  1.0
  Ge  Ge39  1  0.000  0.045  0.124  1.0
  Ge  Ge40  1  0.500  0.632  0.102  1.0
  Ge  Ge41  1  0.500  0.368  0.898  1.0
  Ge  Ge42  1  0.500  0.868  0.602  1.0
  Ge  Ge43  1  0.500  0.132  0.398  1.0
  Ge  Ge44  1  0.000  0.625  0.096  1.0
  Ge  Ge45  1  0.000  0.375  0.904  1.0
  Ge  Ge46  1  0.000  0.875  0.596  1.0
  Ge  Ge47  1  0.000  0.125  0.404  1.0
[/CIF]
.
The crystal structure described by ZrCrGe2 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 8-coordinate geometry to one Ge(4), one Ge(5), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Zr site, Zr(2) is bonded to two equivalent Ge(1), two equivalent Ge(2), and three equivalent Ge(4) atoms to form distorted ZrGe7 pentagonal bipyramids that share corners with two equivalent Cr(2)Ge6 cuboctahedra, corners with two equivalent Zr(2)Ge7 pentagonal bipyramids, edges with three equivalent Zr(2)Ge7 pentagonal bipyramids, and faces with two equivalent Cr(2)Ge6 cuboctahedra. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(3), one Ge(4), one Ge(5), and two equivalent Ge(1) atoms. In the second Cr site, Cr(2) is bonded to two equivalent Ge(1), two equivalent Ge(4), and two equivalent Ge(5) atoms to form distorted CrGe6 cuboctahedra that share corners with two equivalent Zr(2)Ge7 pentagonal bipyramids, edges with two equivalent Cr(2)Ge6 cuboctahedra, and faces with two equivalent Zr(2)Ge7 pentagonal bipyramids. There are five inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Zr(2), four equivalent Zr(1), two equivalent Cr(1), and one Ge(2) atom. In the second Ge site, Ge(3) is bonded in a 7-coordinate geometry to four equivalent Zr(1), two equivalent Cr(1), and one Ge(3) atom. In the third Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent Zr(1), three equivalent Zr(2), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the fourth Ge site, Ge(5) is bonded in a 6-coordinate geometry to two equivalent Zr(1), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the fifth Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Zr(2), two equivalent Zr(1), one Cr(2), two equivalent Cr(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZrCrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.207
_cell_length_b   9.365
_cell_length_c   10.116
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   777.526
_cell_formula_units_Z   12
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
  Zr  Zr0  1  0.745  0.829  0.047  1.0
  Zr  Zr1  1  0.745  0.171  0.953  1.0
  Zr  Zr2  1  0.255  0.671  0.547  1.0
  Zr  Zr3  1  0.255  0.329  0.453  1.0
  Zr  Zr4  1  0.255  0.171  0.953  1.0
  Zr  Zr5  1  0.255  0.829  0.047  1.0
  Zr  Zr6  1  0.745  0.329  0.453  1.0
  Zr  Zr7  1  0.745  0.671  0.547  1.0
  Zr  Zr8  1  0.500  0.834  0.321  1.0
  Zr  Zr9  1  0.500  0.166  0.679  1.0
  Zr  Zr10  1  0.500  0.666  0.821  1.0
  Zr  Zr11  1  0.500  0.334  0.179  1.0
  Cr  Cr12  1  0.750  0.583  0.245  1.0
  Cr  Cr13  1  0.750  0.417  0.755  1.0
  Cr  Cr14  1  0.250  0.917  0.745  1.0
  Cr  Cr15  1  0.250  0.083  0.255  1.0
  Cr  Cr16  1  0.250  0.417  0.755  1.0
  Cr  Cr17  1  0.250  0.583  0.245  1.0
  Cr  Cr18  1  0.750  0.083  0.255  1.0
  Cr  Cr19  1  0.750  0.917  0.745  1.0
  Cr  Cr20  1  0.745  0.000  0.500  1.0
  Cr  Cr21  1  0.255  0.500  0.000  1.0
  Cr  Cr22  1  0.255  0.000  0.500  1.0
  Cr  Cr23  1  0.745  0.500  0.000  1.0
  Ge  Ge24  1  0.843  0.832  0.318  1.0
  Ge  Ge25  1  0.843  0.168  0.682  1.0
  Ge  Ge26  1  0.157  0.668  0.818  1.0
  Ge  Ge27  1  0.157  0.332  0.182  1.0
  Ge  Ge28  1  0.157  0.168  0.682  1.0
  Ge  Ge29  1  0.157  0.832  0.318  1.0
  Ge  Ge30  1  0.843  0.332  0.182  1.0
  Ge  Ge31  1  0.843  0.668  0.818  1.0
  Ge  Ge32  1  0.500  0.541  0.378  1.0
  Ge  Ge33  1  0.500  0.459  0.622  1.0
  Ge  Ge34  1  0.500  0.959  0.878  1.0
  Ge  Ge35  1  0.500  0.041  0.122  1.0
  Ge  Ge36  1  0.000  0.545  0.376  1.0
  Ge  Ge37  1  0.000  0.455  0.624  1.0
  Ge  Ge38  1  0.000  0.955  0.876  1.0
  Ge  Ge39  1  0.000  0.045  0.124  1.0
  Ge  Ge40  1  0.500  0.632  0.102  1.0
  Ge  Ge41  1  0.500  0.368  0.898  1.0
  Ge  Ge42  1  0.500  0.868  0.602  1.0
  Ge  Ge43  1  0.500  0.132  0.398  1.0
  Ge  Ge44  1  0.000  0.625  0.096  1.0
  Ge  Ge45  1  0.000  0.375  0.904  1.0
  Ge  Ge46  1  0.000  0.875  0.596  1.0
  Ge  Ge47  1  0.000  0.125  0.404  1.0
[/CIF]
.