Halogen bonding vs. π-stacking interactions in new bis(acenaphthylene)dione semiconductors
Liu, Ying-Hsuan; Dadvand, Afshin; Titi, Hatem M.; Hamzehpoor, Ehsan; Perepichka, Dmitrii F.; CrystEngComm 23 (2021) 8255–8259; doi:10.1039/D1CE01047F

data_7243725
_publ_section_title
;
 Halogen bonding vs. \p-stacking interactions in new
 bis(acenaphthylene)dione semiconductors
;
_journal_issue                   47
_journal_name_full               CrystEngComm
_journal_page_first              8255
_journal_page_last               8259
_journal_paper_doi               10.1039/D1CE01047F
_journal_volume                  23
_journal_year                    2021
_chemical_formula_sum            'C24 H8 Br4 O2'
_chemical_formula_weight         647.94
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2017/1
_audit_update_record
;
2021-06-01 deposited with the CCDC.	2021-09-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   31.7745(16)
_cell_length_b                   3.8742(2)
_cell_length_c                   15.4074(10)
_cell_measurement_reflns_used    2878
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      72.450
_cell_measurement_theta_min      2.781
_cell_volume                     1896.66(18)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker AXS D8'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.1123
_diffrn_reflns_av_unetI/netI     0.0605
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -3
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            25266
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.450
_diffrn_reflns_theta_min         2.781
_exptl_absorpt_coefficient_mu    10.539
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXScale'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.269
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.050
_exptl_transmission_factor_max   0.7536
_exptl_transmission_factor_min   0.5977
_refine_diff_density_max         0.707
_refine_diff_density_min         -1.001
_refine_diff_density_rms         0.135
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.51(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         3746
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0805
_refine_ls_R_factor_gt           0.0582
_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^)+(0.0753P)^2^+6.8040P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1448
_refine_ls_wR_factor_ref         0.1648
_reflns_Friedel_coverage         0.926
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                2878
_reflns_number_total             3746
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ce01047f2.cif
_cod_data_source_block           YH2
_cod_depositor_comments
'Adding full bibliography for 7243723--7243725.cif.'
_cod_database_code               7243725
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_min   0.144
_shelx_estimated_absorpt_t_max   0.621
_shelx_res_checksum              66507
_shelx_hkl_checksum              68926