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

data_7249320
_publ_section_title
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 The C--I&#x22EF;O halogen bonding in crown ether chemistry
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_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_sum            'C16 H20 F4 I2 O5'
_chemical_formula_weight         622.12
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2023-07-17 deposited with the CCDC.	2024-09-11 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 100.287(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.3775(18)
_cell_length_b                   7.6176(10)
_cell_length_c                   22.623(3)
_cell_measurement_reflns_used    2860
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      28.8060
_cell_measurement_theta_min      3.4690
_cell_volume                     2098.8(5)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.2542
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1102
_diffrn_reflns_av_sigmaI/netI    0.1031
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            8868
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.15
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.054
_exptl_absorpt_correction_T_max  0.7499
_exptl_absorpt_correction_T_min  0.3746
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.969
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1192
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.965
_refine_diff_density_min         -1.801
_refine_diff_density_rms         0.381
_refine_ls_extinction_coef       0.0061(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         3884
_refine_ls_number_restraints     37
_refine_ls_restrained_S_all      1.124
_refine_ls_R_factor_all          0.1262
_refine_ls_R_factor_gt           0.0878
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+6.3105P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2460
_refine_ls_wR_factor_ref         0.3317
_reflns_number_gt                2728
_reflns_number_total             3884
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d4ce00853g2.cif
_cod_data_source_block           C5-I12
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 7249319--7249331.cif.
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7249320