The structure described by Rb(GeAs)3 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Ge(3), one As(3), two equivalent As(2), and three equivalent As(1) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one As(2), one As(3), and two equivalent As(1) atoms to form GeAs4 tetrahedra that share corners with two equivalent Ge(1)As4 tetrahedra and corners with four equivalent Ge(2)GeAs3 tetrahedra. In the second Ge site, Ge(2) is bonded to one Ge(3), one As(1), and two equivalent As(3) atoms to form distorted GeGeAs3 tetrahedra that share corners with two equivalent As(2)Rb2Ge3 square pyramids, corners with two equivalent Ge(2)GeAs3 tetrahedra, and corners with four equivalent Ge(1)As4 tetrahedra. In the third Ge site, Ge(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Ge(2), and two equivalent As(2) atoms. There are three inequivalent As sites. In the first As site, As(1) is bonded to three equivalent Rb(1), one Ge(2), and two equivalent Ge(1) atoms to form distorted AsRb3Ge3 octahedra that share corners with two equivalent As(2)Rb2Ge3 square pyramids, edges with four equivalent As(1)Rb3Ge3 octahedra, and edges with three equivalent As(2)Rb2Ge3 square pyramids. In the second As site, As(2) is bonded to two equivalent Rb(1), one Ge(1), and two equivalent Ge(3) atoms to form distorted AsRb2Ge3 square pyramids that share corners with two equivalent As(1)Rb3Ge3 octahedra, corners with two equivalent Ge(2)GeAs3 tetrahedra, edges with three equivalent As(1)Rb3Ge3 octahedra, and edges with two equivalent As(2)Rb2Ge3 square pyramids. The corner-sharing octahedral tilt angles are 18°. In the third As site, As(3) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Ge(1), and two equivalent Ge(2) atoms. is represented by the CIF card [CIF]
data_Rb(GeAs)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.892
_cell_length_b   10.294
_cell_length_c   19.443
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   778.933
_cell_formula_units_Z   4
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
  Rb  Rb0  1  0.250  0.219  0.540  1.0
  Rb  Rb1  1  0.250  0.719  0.960  1.0
  Rb  Rb2  1  0.750  0.781  0.460  1.0
  Rb  Rb3  1  0.750  0.281  0.040  1.0
  Ge  Ge4  1  0.250  0.296  0.839  1.0
  Ge  Ge5  1  0.250  0.796  0.661  1.0
  Ge  Ge6  1  0.750  0.704  0.161  1.0
  Ge  Ge7  1  0.750  0.204  0.339  1.0
  Ge  Ge8  1  0.250  0.424  0.244  1.0
  Ge  Ge9  1  0.250  0.924  0.256  1.0
  Ge  Ge10  1  0.750  0.576  0.756  1.0
  Ge  Ge11  1  0.750  0.076  0.744  1.0
  Ge  Ge12  1  0.250  0.526  0.366  1.0
  Ge  Ge13  1  0.250  0.026  0.134  1.0
  Ge  Ge14  1  0.750  0.474  0.634  1.0
  Ge  Ge15  1  0.750  0.974  0.866  1.0
  As  As16  1  0.250  0.059  0.364  1.0
  As  As17  1  0.250  0.559  0.136  1.0
  As  As18  1  0.750  0.941  0.636  1.0
  As  As19  1  0.750  0.441  0.864  1.0
  As  As20  1  0.250  0.107  0.915  1.0
  As  As21  1  0.250  0.607  0.585  1.0
  As  As22  1  0.750  0.893  0.085  1.0
  As  As23  1  0.750  0.393  0.415  1.0
  As  As24  1  0.250  0.225  0.718  1.0
  As  As25  1  0.250  0.725  0.782  1.0
  As  As26  1  0.750  0.775  0.282  1.0
  As  As27  1  0.750  0.275  0.218  1.0
[/CIF]
.
The structure described by Rb(GeAs)3 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Ge(3), one As(3), two equivalent As(2), and three equivalent As(1) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one As(2), one As(3), and two equivalent As(1) atoms to form GeAs4 tetrahedra that share corners with two equivalent Ge(1)As4 tetrahedra and corners with four equivalent Ge(2)GeAs3 tetrahedra. In the second Ge site, Ge(2) is bonded to one Ge(3), one As(1), and two equivalent As(3) atoms to form distorted GeGeAs3 tetrahedra that share corners with two equivalent As(2)Rb2Ge3 square pyramids, corners with two equivalent Ge(2)GeAs3 tetrahedra, and corners with four equivalent Ge(1)As4 tetrahedra. In the third Ge site, Ge(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Ge(2), and two equivalent As(2) atoms. There are three inequivalent As sites. In the first As site, As(1) is bonded to three equivalent Rb(1), one Ge(2), and two equivalent Ge(1) atoms to form distorted AsRb3Ge3 octahedra that share corners with two equivalent As(2)Rb2Ge3 square pyramids, edges with four equivalent As(1)Rb3Ge3 octahedra, and edges with three equivalent As(2)Rb2Ge3 square pyramids. In the second As site, As(2) is bonded to two equivalent Rb(1), one Ge(1), and two equivalent Ge(3) atoms to form distorted AsRb2Ge3 square pyramids that share corners with two equivalent As(1)Rb3Ge3 octahedra, corners with two equivalent Ge(2)GeAs3 tetrahedra, edges with three equivalent As(1)Rb3Ge3 octahedra, and edges with two equivalent As(2)Rb2Ge3 square pyramids. The corner-sharing octahedral tilt angles are 18°. In the third As site, As(3) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Ge(1), and two equivalent Ge(2) atoms. is represented by the CIF card [CIF]
data_Rb(GeAs)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.892
_cell_length_b   10.294
_cell_length_c   19.443
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   778.933
_cell_formula_units_Z   4
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
  Rb  Rb0  1  0.250  0.219  0.540  1.0
  Rb  Rb1  1  0.250  0.719  0.960  1.0
  Rb  Rb2  1  0.750  0.781  0.460  1.0
  Rb  Rb3  1  0.750  0.281  0.040  1.0
  Ge  Ge4  1  0.250  0.296  0.839  1.0
  Ge  Ge5  1  0.250  0.796  0.661  1.0
  Ge  Ge6  1  0.750  0.704  0.161  1.0
  Ge  Ge7  1  0.750  0.204  0.339  1.0
  Ge  Ge8  1  0.250  0.424  0.244  1.0
  Ge  Ge9  1  0.250  0.924  0.256  1.0
  Ge  Ge10  1  0.750  0.576  0.756  1.0
  Ge  Ge11  1  0.750  0.076  0.744  1.0
  Ge  Ge12  1  0.250  0.526  0.366  1.0
  Ge  Ge13  1  0.250  0.026  0.134  1.0
  Ge  Ge14  1  0.750  0.474  0.634  1.0
  Ge  Ge15  1  0.750  0.974  0.866  1.0
  As  As16  1  0.250  0.059  0.364  1.0
  As  As17  1  0.250  0.559  0.136  1.0
  As  As18  1  0.750  0.941  0.636  1.0
  As  As19  1  0.750  0.441  0.864  1.0
  As  As20  1  0.250  0.107  0.915  1.0
  As  As21  1  0.250  0.607  0.585  1.0
  As  As22  1  0.750  0.893  0.085  1.0
  As  As23  1  0.750  0.393  0.415  1.0
  As  As24  1  0.250  0.225  0.718  1.0
  As  As25  1  0.250  0.725  0.782  1.0
  As  As26  1  0.750  0.775  0.282  1.0
  As  As27  1  0.750  0.275  0.218  1.0
[/CIF]
.