Thermodynamic parameters of the pedal motion in the crystal structures of two bromomethylated azobenzenes
Vande Velde, Christophe M. L.; Zeller, Matthias; Azov, Vladimir A.; CrystEngComm 17 (2015) 5751–; doi:10.1039/C5CE00905G

data_7220876
_publ_section_title
;
 Thermodynamic parameters of the pedal motion in the crystal structures of
 two bromomethylated azobenzenes
;
_journal_issue                   30
_journal_name_full               CrystEngComm
_journal_page_first              5751
_journal_paper_doi               10.1039/C5CE00905G
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C14 H12 Br2 N2'
_chemical_formula_sum            'C14 H12 Br2 N2'
_chemical_formula_weight         368.08
_chemical_melting_point          495(3)
_chemical_name_systematic
;
 (1E)-1,2-bis[4-(Bromomethyl)phenyl]-diazene
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   'fourier difference maps'
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-05-05 deposited with the CCDC.
2015-06-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 102.481(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.9974(15)
_cell_length_b                   4.5160(5)
_cell_length_c                   11.6594(13)
_cell_measurement_reflns_used    3127
_cell_measurement_temperature    240(2)
_cell_measurement_theta_max      31.46
_cell_measurement_theta_min      2.65
_cell_volume                     668.19(13)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      240(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.944
_diffrn_measurement_device_type  'Bruker Smart 1000 area detector'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0426
_diffrn_reflns_av_unetI/netI     0.0416
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.944
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7535
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.944
_diffrn_reflns_theta_full        28.000
_diffrn_reflns_theta_max         31.950
_diffrn_reflns_theta_min         3.211
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    6.048
_exptl_absorpt_correction_T_max  0.7464
_exptl_absorpt_correction_T_min  0.2484
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2008/1
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.829
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.550
_exptl_crystal_size_mid          0.340
_exptl_crystal_size_min          0.170
_refine_diff_density_max         0.380
_refine_diff_density_min         -0.861
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     110
_refine_ls_number_reflns         2184
_refine_ls_number_restraints     17
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0481
_refine_ls_R_factor_gt           0.0336
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0491P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0822
_refine_ls_wR_factor_ref         0.0894
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1705
_reflns_number_total             2184
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5ce00905g3.cif
_cod_data_source_block           12mz154_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '492-498K' was changed to '495(3)' -
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7220863--7220879.cif.

The following automatic conversions were performed:

'_atom_sites_solution_primary' value 'direct methods' was changed to
'direct'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_database_code               7220876
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.136
_shelx_estimated_absorpt_t_max   0.426
_shelx_res_checksum              18361