Comparison of computationally cheap methods for providing insight into the crystal packing of highly bromomethylated azobenzenes
Vande Velde, Christophe M. L.; Zeller, Matthias; Azov, Vladimir A.; Acta Crystallographica Section C 74 (2018) –; doi:10.1107/S2053229618015309

data_2021363
_publ_section_title
;
 Comparison of computationally cheap methods for providing insight into
 the crystal packing of highly bromomethylated azobenzenes
;
_journal_coeditor_code           KY3150
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2053229618015309
_journal_volume                  74
_journal_year                    2018
_chemical_formula_iupac          'C14 H10 Br4 N2'
_chemical_formula_moiety         'C14 H10 Br4 N2'
_chemical_formula_sum            'C14 H10 Br4 N2'
_chemical_formula_weight         525.88
_chemical_melting_point          425.1(10)
_chemical_name_systematic
;
(<i>E</i>)-1,2-Bis[4-(dibromomethyl)phenyl]diazene
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 114.797(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.379(3)
_cell_length_b                   8.6401(10)
_cell_length_c                   9.8451(10)
_cell_measurement_reflns_used    2626
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.86
_cell_measurement_theta_min      2.41
_cell_volume                     1573.7(3)
_computing_cell_refinement
;
SAINT (Bruker, 2009)
;
_computing_data_collection
;
APEX2 (Bruker, 2009)
;
_computing_data_reduction
;
SAINT (Bruker, 2009)
;
_computing_publication_material
;
SHELXL2018 (Sheldrick, 2015)
;
_computing_structure_refinement
;
SHELXL2018 (Sheldrick, 2015) and
<i>shelXle</i>(H\"ubschle <i>et al.</i>, 2011)
;
_computing_structure_solution
;
SHELXS2013 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.908
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0283
_diffrn_reflns_av_unetI/netI     0.0360
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5663
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.241
_diffrn_reflns_theta_min         2.202
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    10.220
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.4058
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Krause <i>et al.</i>, 2015)
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.220
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.510
_exptl_crystal_size_mid          0.480
_exptl_crystal_size_min          0.380
_refine_diff_density_max         0.821
_refine_diff_density_min         -0.602
_refine_ls_extinction_coef       0.00183(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method
;
SHELXL2018 (Sheldrick, 2015)
;
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         2322
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0301
_refine_ls_R_factor_gt           0.0239
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0249P)^2^+1.3279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0539
_refine_ls_wR_factor_ref         0.0556
_reflns_number_gt                2049
_reflns_number_total             2322
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ky3150sup1.cif
_cod_data_source_block           6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '151-153 C' was changed to
'425.1(10)' - it was converted from degrees Celsius(C) to Kelvins(K),
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               2021363
_cod_database_fobs_code          2021363
_shelx_estimated_absorpt_t_min   0.078
_shelx_estimated_absorpt_t_max   0.112
_shelx_hkl_checksum              13979
_shelx_res_checksum              11097