When Halogen Bonding Isn't Enough: Solvation Behavior in Cocrystals of Benzyltrimethylammonium Halides and 1,4-Diiodotetrafluorobenzene
Peloquin, Andrew J.; Pelendage, Lahiruni; Alapati, Srikar; Hanks, Timothy; McMillen, Colin; Pennington, William; CrystEngComm  (2025) –; doi:10.1039/D5CE00832H

data_7251431
_publ_section_title
;
 When Halogen Bonding Isn't Enough: Solvation Behavior in Cocrystals of
 Benzyltrimethylammonium Halides and 1,4-Diiodotetrafluorobenzene
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D5CE00832H
_journal_year                    2025
_chemical_formula_moiety         '2(C3 F2 I), Br, C3 H6 O, C10 H16 N'
_chemical_formula_sum            'C19 H22 Br F4 I2 N O'
_chemical_formula_weight         690.099
_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_Int_Tables_number      14
_audit_creation_date             2024-03-09
_audit_creation_method
;
Olex2 1.5
(compiled 2024.02.16 svn.r378c4104 for OlexSys, GUI svn.r6928)
;
_audit_update_record
;
2025-07-29 deposited with the CCDC.	2025-11-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.397(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.4179(5)
_cell_length_b                   17.5166(12)
_cell_length_c                   18.5531(13)
_cell_measurement_reflns_used    73186
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      3.43
_cell_volume                     2363.2(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.00
_diffrn_measured_fraction_theta_full 0.9956
_diffrn_measured_fraction_theta_max 0.9958
_diffrn_measurement_device_type  'D8 Quest definition'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0442
_diffrn_reflns_av_unetI/netI     0.0187
_diffrn_reflns_Laue_measured_fraction_full 0.9956
_diffrn_reflns_Laue_measured_fraction_max 0.9958
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            73186
_diffrn_reflns_point_group_measured_fraction_full 0.9956
_diffrn_reflns_point_group_measured_fraction_max 0.9958
_diffrn_reflns_theta_full        25.2417
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         3.43
_diffrn_source                   'fine focus sealed tube'
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    4.392
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6390
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker, SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.940
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       column
_exptl_crystal_F_000             1308.824
_exptl_crystal_size_max          0.237
_exptl_crystal_size_mid          0.041
_exptl_crystal_size_min          0.024
_exptl_transmission_factor_max   'not measured'
_exptl_transmission_factor_min   'not measured'
_refine_diff_density_max         0.8562
_refine_diff_density_min         -0.4853
_refine_diff_density_rms         0.1223
_refine_ls_d_res_high            0.8200
_refine_ls_d_res_low             5.9457
_refine_ls_goodness_of_fit_ref   1.0470
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_constraints    33
_refine_ls_number_parameters     258
_refine_ls_number_reflns         4452
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.0470
_refine_ls_R_factor_all          0.0259
_refine_ls_R_factor_gt           0.0206
_refine_ls_shift/su_max          0.0003
_refine_ls_shift/su_mean         0.0000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0325P)^2^+0.7338P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0495
_refine_ls_wR_factor_ref         0.0525
_reflns_Friedel_coverage         0.0
_reflns_limit_h_max              8
_reflns_limit_h_min              -9
_reflns_limit_k_max              21
_reflns_limit_k_min              0
_reflns_limit_l_max              22
_reflns_limit_l_min              0
_reflns_number_gt                3952
_reflns_number_total             4452
_reflns_threshold_expression     I>=2u(I)
_cod_data_source_file            d5ce00832h2.cif
_cod_data_source_block           NMe3BzBr_pF4DIB_acetone
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 
;
_cod_database_code               7251431
_olex2_refinement_description
;
1.a Secondary CH2 refined with riding coordinates:
 C1(H1a,H1b)
1.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C6(H6), C7(H7)
1.c Idealised Me refined as rotating group:
 C17(H17a,H17b,H17c), C19(H19a,H19b,H19c), C8(H8a,H8b,H8c), C9(H9a,H9b,H9c),
 C10(H10a,H10b,H10c)
;
_olex2_submission_special_instructions 'No special instructions were received'