Two-dimensional halogen-bonded organic frameworks based on the tetrabromobenzene-1,4-dicarboxylic acid building molecule
Chongboriboon, Nucharee; Samakun, Kodchakorn; Inprasit, Thitirat; Kielar, Filip; Dungkaew, Winya; Wong, Lawrence W.-Y.; Sung, Herman H.-Y.; Ninković, Dragan B.; Zarić, Snežana D.; Chainok, Kittipong; CrystEngComm 22 (2020) 24–34; doi:10.1039/C9CE01140D

data_7234797
_publ_section_title
;
 Two-dimensional halogen-bonded organic frameworks based on the
 tetrabromobenzene-1,4-dicarboxylic acid building molecule
;
_journal_issue                   1
_journal_name_full               CrystEngComm
_journal_page_first              24
_journal_page_last               34
_journal_paper_doi               10.1039/C9CE01140D
_journal_volume                  22
_journal_year                    2020
_chemical_formula_moiety         'C8 H2 Br4 O4, 2(C2 H6 O)'
_chemical_formula_sum            'C12 H14 Br4 O6'
_chemical_formula_weight         573.87
_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'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2019-07-18
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-07-18 deposited with the CCDC.    2019-10-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.27849(19)
_cell_length_b                   23.5754(5)
_cell_length_c                   8.6023(2)
_cell_measurement_reflns_used    4308
_cell_measurement_temperature    100.02(10)
_cell_measurement_theta_max      73.5200
_cell_measurement_theta_min      5.4400
_cell_volume                     1881.70(7)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.02(10)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Atlas'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0449
_diffrn_reflns_av_unetI/netI     0.0240
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9416
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.483
_diffrn_reflns_theta_max         67.483
_diffrn_reflns_theta_min         3.750
_exptl_absorpt_coefficient_mu    10.652
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.31048
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.026
_exptl_crystal_description       block
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.16
_refine_diff_density_max         1.010
_refine_diff_density_min         -0.653
_refine_diff_density_rms         0.134
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     109
_refine_ls_number_reflns         1747
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0316
_refine_ls_R_factor_gt           0.0294
_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^)+(0.0546P)^2^+0.1889P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0790
_refine_ls_wR_factor_ref         0.0809
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1595
_reflns_number_total             1747
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce01140d2.cif
_cod_data_source_block           2etoh_lt
_cod_depositor_comments
;Adding full bibliography for 7234791--7234798.cif.

 Adding full bibliography for 7234791--7234798.cif.
;
_cod_original_cell_volume        1881.71(7)
_cod_database_code               7234797
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.281
_shelx_estimated_absorpt_t_min   0.203
_oxdiff_exptl_absorpt_empirical_full_min 0.584
_oxdiff_exptl_absorpt_empirical_full_max 2.711
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 O1-H1 = O3-H3
 0.84 with sigma of 0.02
3.a Secondary CH2 refined with riding coordinates:
 C5(H5A,H5B)
3.b Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C)
;
_shelx_res_checksum              79299
_olex2_submission_special_instructions 'No special instructions were received'