The structure described by EuI3CH3NH3 crystallizes in the monoclinic Cc space group. The structure consists of eight methylammonium molecules inside a EuI3 framework. In the EuI3 framework, there are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to one I(1), one I(2), one I(3), one I(4), and two equivalent I(5) atoms to form corner-sharing EuI6 octahedra. The corner-sharing octahedral tilt angles range from 7-31°. In the second Eu site, Eu(2) is bonded to one I(1), one I(2), one I(3), one I(4), and two equivalent I(6) atoms to form corner-sharing EuI6 octahedra. The corner-sharing octahedral tilt angles range from 5-31°. There are six inequivalent I sites. In the first I site, I(2) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the second I site, I(1) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the third I site, I(3) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the fourth I site, I(4) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the fifth I site, I(5) is bonded in a linear geometry to two equivalent Eu(1) atoms. In the sixth I site, I(6) is bonded in a linear geometry to two equivalent Eu(2) atoms. is represented by the CIF card [CIF]
data_EuH6CI3N
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.967
_cell_length_b   8.967
_cell_length_c   13.280
_cell_angle_alpha   89.643
_cell_angle_beta   89.643
_cell_angle_gamma   89.962
_symmetry_Int_Tables_number   1
_cell_volume   1067.707
_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
  Eu  Eu0  1  0.516  0.508  0.989  1.0
  Eu  Eu1  1  0.508  0.516  0.489  1.0
  Eu  Eu2  1  0.012  0.029  0.490  1.0
  Eu  Eu3  1  0.029  0.012  0.990  1.0
  H  H4  1  0.019  0.645  0.228  1.0
  H  H5  1  0.034  0.515  0.331  1.0
  H  H6  1  0.157  0.501  0.224  1.0
  H  H7  1  0.826  0.452  0.219  1.0
  H  H8  1  0.941  0.439  0.121  1.0
  H  H9  1  0.955  0.317  0.216  1.0
  H  H10  1  0.595  0.936  0.119  1.0
  H  H11  1  0.716  0.952  0.213  1.0
  H  H12  1  0.589  0.815  0.214  1.0
  H  H13  1  0.521  0.143  0.227  1.0
  H  H14  1  0.386  0.997  0.229  1.0
  H  H15  1  0.514  0.014  0.331  1.0
  H  H16  1  0.317  0.955  0.716  1.0
  H  H17  1  0.439  0.941  0.621  1.0
  H  H18  1  0.452  0.826  0.719  1.0
  H  H19  1  0.501  0.157  0.724  1.0
  H  H20  1  0.515  0.034  0.831  1.0
  H  H21  1  0.645  0.019  0.728  1.0
  H  H22  1  0.952  0.716  0.713  1.0
  H  H23  1  0.936  0.595  0.619  1.0
  H  H24  1  0.815  0.589  0.714  1.0
  H  H25  1  0.143  0.521  0.727  1.0
  H  H26  1  0.014  0.514  0.831  1.0
  H  H27  1  0.997  0.386  0.729  1.0
  C  C28  1  0.499  0.027  0.250  1.0
  C  C29  1  0.044  0.529  0.249  1.0
  C  C30  1  0.529  0.044  0.749  1.0
  C  C31  1  0.027  0.499  0.750  1.0
  I  I32  1  0.831  0.702  0.995  1.0
  I  I33  1  0.209  0.323  0.997  1.0
  I  I34  1  0.721  0.207  0.998  1.0
  I  I35  1  0.343  0.829  0.990  1.0
  I  I36  1  0.829  0.343  0.490  1.0
  I  I37  1  0.207  0.721  0.498  1.0
  I  I38  1  0.702  0.831  0.495  1.0
  I  I39  1  0.323  0.209  0.497  1.0
  I  I40  1  0.533  0.524  0.240  1.0
  I  I41  1  0.524  0.533  0.740  1.0
  I  I42  1  0.023  0.005  0.741  1.0
  I  I43  1  0.005  0.023  0.241  1.0
  N  N44  1  0.606  0.927  0.196  1.0
  N  N45  1  0.935  0.429  0.199  1.0
  N  N46  1  0.429  0.935  0.699  1.0
  N  N47  1  0.927  0.606  0.696  1.0
[/CIF]
.
The structure described by EuI3CH3NH3 crystallizes in the monoclinic Cc space group. The structure consists of eight methylammonium molecules inside a EuI3 framework. In the EuI3 framework, there are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to one I(1), one I(2), one I(3), one I(4), and two equivalent I(5) atoms to form corner-sharing EuI6 octahedra. The corner-sharing octahedral tilt angles range from 7-31°. In the second Eu site, Eu(2) is bonded to one I(1), one I(2), one I(3), one I(4), and two equivalent I(6) atoms to form corner-sharing EuI6 octahedra. The corner-sharing octahedral tilt angles range from 5-31°. There are six inequivalent I sites. In the first I site, I(2) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the second I site, I(1) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the third I site, I(3) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the fourth I site, I(4) is bonded in a bent 150 degrees geometry to one Eu(1) and one Eu(2) atom. In the fifth I site, I(5) is bonded in a linear geometry to two equivalent Eu(1) atoms. In the sixth I site, I(6) is bonded in a linear geometry to two equivalent Eu(2) atoms. is represented by the CIF card [CIF]
data_EuH6CI3N
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.967
_cell_length_b   8.967
_cell_length_c   13.280
_cell_angle_alpha   89.643
_cell_angle_beta   89.643
_cell_angle_gamma   89.962
_symmetry_Int_Tables_number   1
_cell_volume   1067.707
_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
  Eu  Eu0  1  0.516  0.508  0.989  1.0
  Eu  Eu1  1  0.508  0.516  0.489  1.0
  Eu  Eu2  1  0.012  0.029  0.490  1.0
  Eu  Eu3  1  0.029  0.012  0.990  1.0
  H  H4  1  0.019  0.645  0.228  1.0
  H  H5  1  0.034  0.515  0.331  1.0
  H  H6  1  0.157  0.501  0.224  1.0
  H  H7  1  0.826  0.452  0.219  1.0
  H  H8  1  0.941  0.439  0.121  1.0
  H  H9  1  0.955  0.317  0.216  1.0
  H  H10  1  0.595  0.936  0.119  1.0
  H  H11  1  0.716  0.952  0.213  1.0
  H  H12  1  0.589  0.815  0.214  1.0
  H  H13  1  0.521  0.143  0.227  1.0
  H  H14  1  0.386  0.997  0.229  1.0
  H  H15  1  0.514  0.014  0.331  1.0
  H  H16  1  0.317  0.955  0.716  1.0
  H  H17  1  0.439  0.941  0.621  1.0
  H  H18  1  0.452  0.826  0.719  1.0
  H  H19  1  0.501  0.157  0.724  1.0
  H  H20  1  0.515  0.034  0.831  1.0
  H  H21  1  0.645  0.019  0.728  1.0
  H  H22  1  0.952  0.716  0.713  1.0
  H  H23  1  0.936  0.595  0.619  1.0
  H  H24  1  0.815  0.589  0.714  1.0
  H  H25  1  0.143  0.521  0.727  1.0
  H  H26  1  0.014  0.514  0.831  1.0
  H  H27  1  0.997  0.386  0.729  1.0
  C  C28  1  0.499  0.027  0.250  1.0
  C  C29  1  0.044  0.529  0.249  1.0
  C  C30  1  0.529  0.044  0.749  1.0
  C  C31  1  0.027  0.499  0.750  1.0
  I  I32  1  0.831  0.702  0.995  1.0
  I  I33  1  0.209  0.323  0.997  1.0
  I  I34  1  0.721  0.207  0.998  1.0
  I  I35  1  0.343  0.829  0.990  1.0
  I  I36  1  0.829  0.343  0.490  1.0
  I  I37  1  0.207  0.721  0.498  1.0
  I  I38  1  0.702  0.831  0.495  1.0
  I  I39  1  0.323  0.209  0.497  1.0
  I  I40  1  0.533  0.524  0.240  1.0
  I  I41  1  0.524  0.533  0.740  1.0
  I  I42  1  0.023  0.005  0.741  1.0
  I  I43  1  0.005  0.023  0.241  1.0
  N  N44  1  0.606  0.927  0.196  1.0
  N  N45  1  0.935  0.429  0.199  1.0
  N  N46  1  0.429  0.935  0.699  1.0
  N  N47  1  0.927  0.606  0.696  1.0
[/CIF]
.