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_7234796
_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         '0.5(C16 H4 Br8 O8), 2(C2 H6 O2)'
_chemical_formula_sum            'C12 H14 Br4 O8'
_chemical_formula_weight         605.87
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_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                   8.134(2)
_cell_length_b                   9.964(3)
_cell_length_c                   23.849(6)
_cell_measurement_reflns_used    9675
_cell_measurement_temperature    296
_cell_measurement_theta_max      26.372
_cell_measurement_theta_min      3.031
_cell_volume                     1932.9(9)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      296
_diffrn_detector                 'Bruker PHOTON 100 area detector'
_diffrn_detector_area_resol_mean 10.5
_diffrn_detector_type            'PHOTON area detector'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'four-circle KAPPA diffractometer'
_diffrn_measurement_device_type  'BRUKER D8 CMOS PHOTON II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_collimation    '0.5 mm'
_diffrn_radiation_monochromator  'graphiteDouble Bounce Multilayer Mirror'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0724
_diffrn_reflns_av_unetI/netI     0.0299
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            30880
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.370
_diffrn_reflns_theta_min         3.032
_diffrn_source                   'microfocus sealed x-ray tube'
_diffrn_source_type              'Incoatec I\mus'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.362
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.3692
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1808 before and 0.0987 after correction. The Ratio of minimum to maximum transmission is 0.4953. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.082
_exptl_crystal_description       block
_exptl_crystal_F_000             1160
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.501
_refine_diff_density_min         -1.135
_refine_diff_density_rms         0.117
_refine_ls_extinction_coef       0.0034(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     122
_refine_ls_number_reflns         1968
_refine_ls_number_restraints     59
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0549
_refine_ls_R_factor_gt           0.0417
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0494P)^2^+6.4579P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1026
_refine_ls_wR_factor_ref         0.1122
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1544
_reflns_number_total             1968
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce01140d2.cif
_cod_data_source_block           4eg_rt
_cod_depositor_comments
;Adding full bibliography for 7234791--7234798.cif.

 Adding full bibliography for 7234791--7234798.cif.
;
_cod_original_cell_volume        1933.0(9)
_cod_database_code               7234796
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.286
_shelx_estimated_absorpt_t_min   0.261
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
2. Restrained distances
 O1-H1 = O3-H3 = O4-H4
 0.82 with sigma of 0.01
3. Uiso/Uaniso restraints and constraints
Uanis(C2) \\sim Ueq, Uanis(C4) \\sim Ueq, Uanis(Br2) \\sim Ueq, Uanis(C3) \\sim
Ueq, Uanis(Br1) \\sim Ueq: with sigma of 0.01 and sigma for terminal atoms of
0.02
Uanis(C2) \\sim Ueq: with sigma of 0.01 and sigma for terminal atoms of 0.02
4. Rigid body (RIGU) restrains
 C1, C2, C4, Br2, C3, Br1
 with sigma for 1-2 distances of 0.0001 and sigma for 1-3 distances of 0.0001
 C1, C2
 with sigma for 1-2 distances of 0.0001 and sigma for 1-3 distances of 0.0001
5.a Secondary CH2 refined with riding coordinates:
 C5(H5A,H5B), C6(H6A,H6B)
;
_shelx_res_checksum              59978
_olex2_submission_special_instructions 'No special instructions were received'