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_7251424
_publ_section_title
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 When Halogen Bonding Isn't Enough: Solvation Behavior in Cocrystals of
 Benzyltrimethylammonium Halides and 1,4-Diiodotetrafluorobenzene
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_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D5CE00832H
_journal_year                    2025
_chemical_formula_moiety         '2(I), 2(C6 F4 I2), 2(C10 H16 N), C H2 Cl2'
_chemical_formula_sum            'C33 H34 Cl2 F8 I6 N2'
_chemical_formula_weight         1442.970
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_Int_Tables_number      15
_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
;
2025-07-30 deposited with the CCDC.	2025-11-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 121.075(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   26.7504(18)
_cell_length_b                   7.3621(5)
_cell_length_c                   25.775(3)
_cell_measurement_reflns_used    9731
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      30.54
_cell_measurement_theta_min      2.91
_cell_volume                     4347.6(7)
_computing_cell_refinement       'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_data_collection       'APEX3 v2017.3-0 (Bruker AXS Inc., 2017)'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015<i>b</i>)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2015<i>a</i>)'
_diffrn_ambient_temperature      150.15
_diffrn_measured_fraction_theta_full 0.9967
_diffrn_measured_fraction_theta_max 0.9974
_diffrn_measurement_device_type  'Bruker D8 Venture Photon 2'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0295
_diffrn_reflns_av_unetI/netI     0.0169
_diffrn_reflns_Laue_measured_fraction_full 0.9967
_diffrn_reflns_Laue_measured_fraction_max 0.9974
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            57098
_diffrn_reflns_point_group_measured_fraction_full 0.9967
_diffrn_reflns_point_group_measured_fraction_max 0.9974
_diffrn_reflns_theta_full        25.2417
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.16
_diffrn_source                   'Incoatec I\mS'
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.470
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.5798
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0800 before and 0.0440 after correction.
The Ratio of minimum to maximum transmission is 0.7771.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.204
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2673.158
_exptl_crystal_size_max          0.233
_exptl_crystal_size_mid          0.174
_exptl_crystal_size_min          0.132
_exptl_transmission_factor_max   'not measured'
_exptl_transmission_factor_min   'not measured'
_refine_diff_density_max         1.7292
_refine_diff_density_min         -2.0154
_refine_diff_density_rms         0.1459
_refine_ls_d_res_high            0.7696
_refine_ls_d_res_low             6.4386
_refine_ls_goodness_of_fit_ref   1.0477
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_constraints    28
_refine_ls_number_parameters     246
_refine_ls_number_reflns         4984
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.0477
_refine_ls_R_factor_all          0.0307
_refine_ls_R_factor_gt           0.0273
_refine_ls_shift/su_max          0.0002
_refine_ls_shift/su_mean         0.0000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0224P)^2^+42.1759P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0628
_refine_ls_wR_factor_ref         0.0643
_reflns_Friedel_coverage         0.0
_reflns_limit_h_max              29
_reflns_limit_h_min              -34
_reflns_limit_k_max              9
_reflns_limit_k_min              0
_reflns_limit_l_max              33
_reflns_limit_l_min              0
_reflns_number_gt                4598
_reflns_number_total             4984
_reflns_threshold_expression     I>=2u(I)
_cod_data_source_file            d5ce00832h2.cif
_cod_data_source_block           2(NMe3BzI)_2(pF4DIB)_DCM
_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 
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_cod_original_cell_volume        4347.7(6)
_cod_database_code               7251424
_olex2_refinement_description
;
1. Others
 Fixed Sof: Cl1(0.5) Cl2(0.5) C17(0.5) H17a(0.5) H17b(0.5)
2.a Secondary CH2 refined with riding coordinates:
 C1(H1a,H1b), C17(H17a,H17b)
2.b Me refined with riding coordinates:
 C8(H8a,H8b,H8c), C9(H9a,H9b,H9c), C10(H10a,H10b,H10c)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C6(H6), C7(H7)
;
_olex2_submission_special_instructions 'No special instructions were received'