The crystal structure described by Er4MnGe8 crystallizes in the orthorhombic Pmm2 space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded in a 10-coordinate geometry to two equivalent Ge(2), two equivalent Ge(5), two equivalent Ge(7), and four equivalent Ge(3) atoms. In the second Er site, Er(2) is bonded in a 10-coordinate geometry to two equivalent Ge(1), two equivalent Ge(6), two equivalent Ge(8), and four equivalent Ge(4) atoms. In the third Er site, Er(3) is bonded in a 14-coordinate geometry to four equivalent Mn(1), two equivalent Ge(4), two equivalent Ge(5), two equivalent Ge(7), and four equivalent Ge(1) atoms. In the fourth Er site, Er(4) is bonded in a 10-coordinate geometry to two equivalent Ge(3), two equivalent Ge(6), two equivalent Ge(8), and four equivalent Ge(2) atoms. Mn(1) is bonded in a 5-coordinate geometry to four equivalent Er(3), one Ge(1), two equivalent Ge(5), and two equivalent Ge(7) atoms. There are eight inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Er(2), four equivalent Er(3), one Mn(1), and two equivalent Ge(4) atoms. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Er(1), four equivalent Er(4), and two equivalent Ge(3) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent Er(4), four equivalent Er(1), and two equivalent Ge(2) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to two equivalent Er(3), four equivalent Er(2), and two equivalent Ge(1) atoms. In the fifth Ge site, Ge(5) is bonded in a 2-coordinate geometry to two equivalent Er(1), two equivalent Er(3), and two equivalent Mn(1) atoms. In the sixth Ge site, Ge(6) is bonded in a 8-coordinate geometry to two equivalent Er(2), two equivalent Er(4), and four equivalent Ge(8) atoms. In the seventh Ge site, Ge(7) is bonded in a 4-coordinate geometry to two equivalent Er(1), two equivalent Er(3), and two equivalent Mn(1) atoms. In the eighth Ge site, Ge(8) is bonded in a 8-coordinate geometry to two equivalent Er(2), two equivalent Er(4), and four equivalent Ge(6) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er4MnGe8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.987
_cell_length_b   4.165
_cell_length_c   15.858
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   263.341
_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
  Er  Er0  1  0.250  0.000  0.101  1.0
  Er  Er1  1  0.250  0.500  0.607  1.0
  Er  Er2  1  0.750  0.500  0.399  1.0
  Er  Er3  1  0.750  0.000  0.896  1.0
  Mn  Mn4  1  0.250  0.000  0.311  1.0
  Ge  Ge5  1  0.250  0.000  0.459  1.0
  Ge  Ge6  1  0.250  0.500  0.946  1.0
  Ge  Ge7  1  0.750  0.500  0.055  1.0
  Ge  Ge8  1  0.750  0.000  0.565  1.0
  Ge  Ge9  1  0.250  0.500  0.241  1.0
  Ge  Ge10  1  0.250  0.000  0.749  1.0
  Ge  Ge11  1  0.750  0.000  0.236  1.0
  Ge  Ge12  1  0.750  0.500  0.753  1.0
[/CIF]
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The crystal structure described by Er4MnGe8 crystallizes in the orthorhombic Pmm2 space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded in a 10-coordinate geometry to two equivalent Ge(2), two equivalent Ge(5), two equivalent Ge(7), and four equivalent Ge(3) atoms. In the second Er site, Er(2) is bonded in a 10-coordinate geometry to two equivalent Ge(1), two equivalent Ge(6), two equivalent Ge(8), and four equivalent Ge(4) atoms. In the third Er site, Er(3) is bonded in a 14-coordinate geometry to four equivalent Mn(1), two equivalent Ge(4), two equivalent Ge(5), two equivalent Ge(7), and four equivalent Ge(1) atoms. In the fourth Er site, Er(4) is bonded in a 10-coordinate geometry to two equivalent Ge(3), two equivalent Ge(6), two equivalent Ge(8), and four equivalent Ge(2) atoms. Mn(1) is bonded in a 5-coordinate geometry to four equivalent Er(3), one Ge(1), two equivalent Ge(5), and two equivalent Ge(7) atoms. There are eight inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Er(2), four equivalent Er(3), one Mn(1), and two equivalent Ge(4) atoms. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Er(1), four equivalent Er(4), and two equivalent Ge(3) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent Er(4), four equivalent Er(1), and two equivalent Ge(2) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to two equivalent Er(3), four equivalent Er(2), and two equivalent Ge(1) atoms. In the fifth Ge site, Ge(5) is bonded in a 2-coordinate geometry to two equivalent Er(1), two equivalent Er(3), and two equivalent Mn(1) atoms. In the sixth Ge site, Ge(6) is bonded in a 8-coordinate geometry to two equivalent Er(2), two equivalent Er(4), and four equivalent Ge(8) atoms. In the seventh Ge site, Ge(7) is bonded in a 4-coordinate geometry to two equivalent Er(1), two equivalent Er(3), and two equivalent Mn(1) atoms. In the eighth Ge site, Ge(8) is bonded in a 8-coordinate geometry to two equivalent Er(2), two equivalent Er(4), and four equivalent Ge(6) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er4MnGe8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.987
_cell_length_b   4.165
_cell_length_c   15.858
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   263.341
_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
  Er  Er0  1  0.250  0.000  0.101  1.0
  Er  Er1  1  0.250  0.500  0.607  1.0
  Er  Er2  1  0.750  0.500  0.399  1.0
  Er  Er3  1  0.750  0.000  0.896  1.0
  Mn  Mn4  1  0.250  0.000  0.311  1.0
  Ge  Ge5  1  0.250  0.000  0.459  1.0
  Ge  Ge6  1  0.250  0.500  0.946  1.0
  Ge  Ge7  1  0.750  0.500  0.055  1.0
  Ge  Ge8  1  0.750  0.000  0.565  1.0
  Ge  Ge9  1  0.250  0.500  0.241  1.0
  Ge  Ge10  1  0.250  0.000  0.749  1.0
  Ge  Ge11  1  0.750  0.000  0.236  1.0
  Ge  Ge12  1  0.750  0.500  0.753  1.0
[/CIF]
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