The crystal structure described by Ca2Eu2In3Ge4 crystallizes in the monoclinic C2/m space group. Ca(1) is bonded in a 11-coordinate geometry to two equivalent In(1), three equivalent In(2), two equivalent Ge(2), and four equivalent Ge(1) atoms. Eu(1) is bonded in a 5-coordinate geometry to two equivalent In(1), two equivalent Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded to four equivalent Ca(1), four equivalent Eu(1), two equivalent Ge(1), and two equivalent Ge(2) atoms to form face-sharing InCa4Eu4Ge4 cuboctahedra. In the second In site, In(2) is bonded in a 4-coordinate geometry to three equivalent Ca(1), one Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), two equivalent Eu(1), one In(1), one In(2), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ca(1), three equivalent Eu(1), one In(1), and three equivalent In(2) atoms. is represented by the CIF card [CIF]
data_Ca2Eu2In3Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.677
_cell_length_b   8.677
_cell_length_c   7.417
_cell_angle_alpha   73.601
_cell_angle_beta   73.601
_cell_angle_gamma   31.466
_symmetry_Int_Tables_number   1
_cell_volume   278.696
_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
  Ca  Ca0  1  0.576  0.576  0.633  1.0
  Ca  Ca1  1  0.424  0.424  0.367  1.0
  Eu  Eu2  1  0.353  0.353  0.923  1.0
  Eu  Eu3  1  0.647  0.647  0.077  1.0
  In  In4  1  0.000  0.000  0.000  1.0
  In  In5  1  0.213  0.213  0.375  1.0
  In  In6  1  0.787  0.787  0.625  1.0
  Ge  Ge7  1  0.054  0.054  0.342  1.0
  Ge  Ge8  1  0.946  0.946  0.658  1.0
  Ge  Ge9  1  0.190  0.190  0.771  1.0
  Ge  Ge10  1  0.810  0.810  0.229  1.0
[/CIF]
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The crystal structure described by Ca2Eu2In3Ge4 crystallizes in the monoclinic C2/m space group. Ca(1) is bonded in a 11-coordinate geometry to two equivalent In(1), three equivalent In(2), two equivalent Ge(2), and four equivalent Ge(1) atoms. Eu(1) is bonded in a 5-coordinate geometry to two equivalent In(1), two equivalent Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded to four equivalent Ca(1), four equivalent Eu(1), two equivalent Ge(1), and two equivalent Ge(2) atoms to form face-sharing InCa4Eu4Ge4 cuboctahedra. In the second In site, In(2) is bonded in a 4-coordinate geometry to three equivalent Ca(1), one Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), two equivalent Eu(1), one In(1), one In(2), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ca(1), three equivalent Eu(1), one In(1), and three equivalent In(2) atoms. is represented by the CIF card [CIF]
data_Ca2Eu2In3Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.677
_cell_length_b   8.677
_cell_length_c   7.417
_cell_angle_alpha   73.601
_cell_angle_beta   73.601
_cell_angle_gamma   31.466
_symmetry_Int_Tables_number   1
_cell_volume   278.696
_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
  Ca  Ca0  1  0.576  0.576  0.633  1.0
  Ca  Ca1  1  0.424  0.424  0.367  1.0
  Eu  Eu2  1  0.353  0.353  0.923  1.0
  Eu  Eu3  1  0.647  0.647  0.077  1.0
  In  In4  1  0.000  0.000  0.000  1.0
  In  In5  1  0.213  0.213  0.375  1.0
  In  In6  1  0.787  0.787  0.625  1.0
  Ge  Ge7  1  0.054  0.054  0.342  1.0
  Ge  Ge8  1  0.946  0.946  0.658  1.0
  Ge  Ge9  1  0.190  0.190  0.771  1.0
  Ge  Ge10  1  0.810  0.810  0.229  1.0
[/CIF]
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