EuI~2~, a low-temperature europium(II) iodide phase
Krings, Michael; Wessel, Michael; Dronskowski, Richard; Acta Crystallographica Section C 65 (2009) i66–i68; doi:10.1107/S0108270109038542

data_2017368
_publ_section_title
;
 EuI~2~, a low-temperature europium(II) iodide phase
;
_journal_coeditor_code           SQ3214
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              i66
_journal_page_last               i68
_journal_paper_doi               10.1107/S0108270109038542
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'Eu I2'
_chemical_formula_moiety         'Eu I2'
_chemical_formula_sum            'Eu I2'
_chemical_formula_weight         405.76
_chemical_name_common            'europium iodide'
_chemical_name_systematic
;
europium(II) diiodide
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   12.2665(11)
_cell_length_b                   4.8875(4)
_cell_length_c                   8.3697(8)
_cell_measurement_temperature    293
_cell_volume                     501.78(8)
_computing_cell_refinement       'WinXPow (Stoe & Cie, 2005)'
_computing_data_collection       'WinXPow (Stoe & Cie, 2005)'
_computing_data_reduction        'WinXPow (Stoe & Cie, 2005)'
_computing_molecular_graphics    'ATOMS (Dowty, 2005)'
_computing_publication_material  'enCIFer (Allen <i>et al.</i>,  2004)'
_computing_structure_refinement  'FULLPROF (Rodriguez-Carvajal 1993)'
_computing_structure_solution    'FULLPROF (Rodriguez-Carvajal 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device_type  'Stoe STADI MP'
_diffrn_radiation_monochromator  Ge
_diffrn_radiation_type           'Cu K\a~1~'
_diffrn_radiation_wavelength     1.540590
_exptl_absorpt_coefficient_mu    184.46
_exptl_crystal_density_diffrn    5.371
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             676
_pd_block_diffractogram_id       rietdata_EuI2_IV
_pd_char_colour                  'light yellow'
_pd_char_particle_morphology     powder
_pd_instr_location
;
?
;
_pd_meas_2theta_range_inc        0.020000
_pd_meas_2theta_range_max        108.98500
_pd_meas_2theta_range_min        5.00500
_pd_meas_number_of_points        5200
_pd_meas_scan_method             step
_pd_prep_pressure                101.3
_pd_prep_temperature             200
_pd_proc_2theta_range_inc        0.020000
_pd_proc_2theta_range_max        109.0111
_pd_proc_2theta_range_min        5.0311
_pd_proc_info_data_reduction     'No data reduction'
_pd_proc_info_excluded_regions   'No excluded regions'
_pd_proc_ls_background_function  fourier-background
_pd_proc_ls_pref_orient_corr
;
none
;
_pd_proc_ls_profile_function     pseudo-voigt
_pd_proc_ls_prof_R_factor        1.4821
_pd_proc_ls_prof_wR_expected     1.2875
_pd_proc_ls_prof_wR_factor       1.9118
_pd_proc_wavelength              1.540590
_pd_spec_mounting
;
capillary tube
;
_pd_spec_mount_mode              transmission
_pd_spec_shape                   cylinder
_pd_spec_size_axial              0.3
_pd_spec_size_equat              0.3
_pd_spec_size_thick              0.3
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.49
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     20
_refine_ls_number_restraints     0
_refine_ls_weighting_details     'Standard least squares refinement'
_refine_ls_weighting_scheme      sigma
_cod_data_source_file            sq3214.cif
_cod_data_source_block           I
_cod_database_code               2017368