Magnesium diiodide, MgI~2~
Brogan, Michael A.; Blake, Alexander J.; Wilson, Claire; Gregory, Duncan H.; Acta Crystallographica Section C 59 (2003) i136–i138; doi:10.1107/S0108270103025769

data_2013551
_publ_section_title
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 Magnesium diiodide, MgI~2~
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_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              i136
_journal_page_last               i138
_journal_paper_doi               10.1107/S0108270103025769
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'Mg I2'
_chemical_formula_moiety         'Mg 2+, 2I -'
_chemical_formula_sum            'I2 Mg'
_chemical_formula_weight         278.11
_space_group_IT_number           164
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3 2"'
_symmetry_space_group_name_H-M   'P -3 m 1'
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            1
_cell_length_a                   4.1537(7)
_cell_length_b                   4.1537(7)
_cell_length_c                   6.862(2)
_cell_measurement_reflns_used    529
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.3
_cell_measurement_theta_min      2.95
_cell_volume                     102.53(4)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT and SHELXTL (Bruker, 2001)'
_computing_molecular_graphics    'ATOMS (Dowty, 1998)'
_computing_publication_material
;
enCIFer (CCDC, 2003), PLATON (Spek, 1990, 2002) and WinGX (Farrugia, 1998)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART1000 CCD area-detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.081
_diffrn_reflns_av_sigmaI/netI    0.014
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            623
_diffrn_reflns_theta_full        27.32
_diffrn_reflns_theta_max         27.32
_diffrn_reflns_theta_min         2.97
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    15.24
_exptl_absorpt_correction_T_max  0.505
_exptl_absorpt_correction_T_min  0.093
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   '(SHELXTL; Bruker, 2001)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    4.504
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             118
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.075
_refine_diff_density_max         0.86
_refine_diff_density_min         -0.91
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.13
_refine_ls_matrix_type           full
_refine_ls_number_parameters     7
_refine_ls_number_reflns         115
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.13
_refine_ls_R_factor_all          0.0209
_refine_ls_R_factor_gt           0.0208
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.037)^2^+ 0.102P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0627
_refine_ls_wR_factor_ref         0.0628
_reflns_number_gt                112
_reflns_number_total             115
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bc1028.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_geom_bond_publ_flag' value 'Yes' changed to 'yes' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'Yes' changed to 'yes' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_geom_angle_publ_flag' value 'Yes' changed to 'yes'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               2013551
_cod_database_fobs_code          2013551