Halogen bonding in 5-iodo-1-arylpyrazoles investigated in the solid state and predicted by solution 13C-NMR spectroscopy
Popa, Marcel Mirel; Man, Isabela; Draghici, Constantin; Sova, Sergiu; Caira, M. R.; Dumitrascu, Florea; Dumitrescu, Denisa; CrystEngComm  (2019) –; doi:10.1039/C9CE01263J

data_7234731
_publ_section_title
;
 Halogen bonding in 5-iodo-1-arylpyrazoles investigated in the solid state
 and predicted by solution 13C-NMR spectroscopy
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/C9CE01263J
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H17 I N2 O4'
_chemical_formula_sum            'C16 H17 I N2 O4'
_chemical_formula_weight         428.22
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-10-25
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2019-08-09 deposited with the CCDC.    2019-10-18 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1400(6)
_cell_length_b                   13.4654(5)
_cell_length_c                   16.3082(8)
_cell_measurement_reflns_used    3269
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.5540
_cell_measurement_theta_min      1.9600
_cell_volume                     1787.51(17)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.0797
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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    -46.00  78.00   1.00    3.00    --   18.10   0.00  30.00  124
  2  \w    -41.00   2.00   1.00    3.00    --   18.10 -57.00  30.00   43
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0765779000
_diffrn_orient_matrix_UB_12      0.0225052000
_diffrn_orient_matrix_UB_13      -0.0092163000
_diffrn_orient_matrix_UB_21      -0.0125615000
_diffrn_orient_matrix_UB_22      -0.0348053000
_diffrn_orient_matrix_UB_23      -0.0320480000
_diffrn_orient_matrix_UB_31      -0.0395777000
_diffrn_orient_matrix_UB_32      -0.0325029000
_diffrn_orient_matrix_UB_33      0.0279353000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0278
_diffrn_reflns_av_unetI/netI     0.0501
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            5637
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.96
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    1.811
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.96163
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.591
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.312
_refine_diff_density_min         -0.900
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         3139
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0407
_refine_ls_R_factor_gt           0.0364
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0332P)^2^+0.2410P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0757
_refine_ls_wR_factor_ref         0.0781
_reflns_number_gt                2899
_reflns_number_total             3139
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9ce01263j2.cif
_cod_data_source_block           shi_3449_fldu
_cod_original_cell_volume        1787.52(16)
_cod_database_code               7234731
_chemical_oxdiff_formula         'C20 H20 N3 O2 I1'
_chemical_oxdiff_usercomment     I_138(DS_14)
_reflns_odcompleteness_completeness 99.91
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C7(H7)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5)
2.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C14(H14A,H14B,H14C), C16(H16A,H16B,H16C)
;
_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 1.040
_oxdiff_exptl_absorpt_empirical_full_min 0.969