The C–I⋯O halogen bonding in crown ether chemistry
Wang, Weizhou; Ji, Baoming; CrystEngComm 26 (2024) 5309–5313; doi:10.1039/D4CE00853G

data_7249327
_publ_section_title
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 The C--I&#x22EF;O halogen bonding in crown ether chemistry
;
_journal_issue                   38
_journal_name_full               CrystEngComm
_journal_page_first              5309
_journal_page_last               5313
_journal_paper_doi               10.1039/D4CE00853G
_journal_volume                  26
_journal_year                    2024
_chemical_formula_moiety         'C6 F4 I2, C4 H8 O2'
_chemical_formula_sum            'C10 H8 F4 I2 O2'
_chemical_formula_weight         489.96
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2023-07-17
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
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2023-07-17 deposited with the CCDC.	2024-09-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.120(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.0376(4)
_cell_length_b                   15.4508(8)
_cell_length_c                   7.5142(3)
_cell_measurement_reflns_used    3459
_cell_measurement_temperature    293.15
_cell_measurement_theta_max      27.0750
_cell_measurement_theta_min      4.2430
_cell_volume                     1391.99(10)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41r (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41r (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41r (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/2 (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293.15
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.0584
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.852
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -83.00  56.00   1.00    1.88    --  -13.48   0.00   0.00  139
  2  \w    -20.00  25.00   1.00    1.88    --  -13.48 -99.00   0.00   45
  3  \w    -20.00  25.00   1.00    1.88    --  -13.48 -99.00 150.00   45
  4  \w    -20.00  31.00   1.00    1.88    --   14.49 -99.00-150.00   51
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Single source at offset, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0293234000
_diffrn_orient_matrix_UB_12      0.0220861000
_diffrn_orient_matrix_UB_13      0.0640743000
_diffrn_orient_matrix_UB_21      0.0004507000
_diffrn_orient_matrix_UB_22      -0.0381166000
_diffrn_orient_matrix_UB_23      0.0526650000
_diffrn_orient_matrix_UB_31      0.0513725000
_diffrn_orient_matrix_UB_32      0.0129339000
_diffrn_orient_matrix_UB_33      0.0458532000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0561
_diffrn_reflns_av_unetI/netI     0.0580
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.852
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            8105
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.852
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.304
_diffrn_reflns_theta_min         3.398
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    4.555
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.29783
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41r (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    2.338
_exptl_crystal_description       block
_exptl_crystal_F_000             904
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.860
_refine_diff_density_min         -0.654
_refine_diff_density_rms         0.111
_refine_ls_extinction_coef       0.0331(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/2 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2945
_refine_ls_number_restraints     25
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0615
_refine_ls_R_factor_gt           0.0439
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0340P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0858
_refine_ls_wR_factor_ref         0.0949
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2262
_reflns_number_total             2945
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ce00853g2.cif
_cod_data_source_block           C4-I13
_cod_depositor_comments
'Adding full bibliography for 7249319--7249331.cif.'
_cod_database_code               7249327
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_max   0.568
_shelx_estimated_absorpt_t_min   0.494
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
2. Uiso/Uaniso restraints and constraints
I1 \\sim I1A \\sim I1B: within 2A with sigma of 0.01 and sigma for terminal
atoms of 0.02 within 2A
Uanis(I1) = Uanis(I1A) = Uanis(I1B)
3. Rigid body (RIGU) restrains
 I1, C2, I1A, I1B
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.02
4. Others
 1*[Sof(I1)]+1*[Sof(I1A)]+1*[Sof(I1B)]=1 with esd of 0
5.a Secondary CH2 refined with riding coordinates:
 C7(H7A,H7B), C8(H8A,H8B), C9(H9A,H9B), C10(H10A,H10B)
;
_shelx_res_checksum              43732
_shelx_hkl_checksum              33594
_olex2_date_sample_data_collection 2016-07-21
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.984
_oxdiff_exptl_absorpt_empirical_full_min 0.747