Crystal structures of 5-bromo-1-arylpyrazoles and their halogen bonding features
Popa, Marcel Mirel; Shova, Sergiu; Dascalu, Mihaela; Caira, Mino R.; Dumitrascu, Florea; CrystEngComm 25 (2023) 86–94; doi:10.1039/D2CE01355J

data_7245906
_publ_section_title
;
 Crystal structures of 5-bromo-1-arylpyrazoles and their halogen bonding
 features
;
_journal_issue                   1
_journal_name_full               CrystEngComm
_journal_page_first              86
_journal_page_last               94
_journal_paper_doi               10.1039/D2CE01355J
_journal_volume                  25
_journal_year                    2023
_chemical_formula_moiety         'C16 H16 Br2 N2 O4'
_chemical_formula_sum            'C16 H16 Br2 N2 O4'
_chemical_formula_weight         460.13
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-03-06
_audit_creation_method
;
Olex2 1.5
(compiled 2021.12.09 svn.r5202d8cf for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2022-03-06 deposited with the CCDC.	2022-11-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.0434(8)
_cell_length_b                   12.0064(8)
_cell_length_c                   21.0629(13)
_cell_measurement_reflns_used    1982
_cell_measurement_temperature    250.05(10)
_cell_measurement_theta_max      22.2580
_cell_measurement_theta_min      2.4140
_cell_volume                     3551.4(4)
_computing_cell_refinement       'CrysAlisPro 1.171.40.67a (Rigaku OD, 2019)'
_computing_data_collection       'CrysAlisPro 1.171.40.67a (Rigaku OD, 2019)'
_computing_data_reduction        'CrysAlisPro 1.171.40.67a (Rigaku OD, 2019)'
_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)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      250.05(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.0797
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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    -14.00  13.00   1.00   30.00    --   17.63-107.00-162.00   27
  2  \w      7.00  83.00   1.00   30.00    --   17.63  76.00  49.00   76
  3  \w    -84.00 -44.00   1.00   30.00    --  -15.21-178.00-150.00   40
  4  \w     -8.00  30.00   1.00   30.00    --   17.63  77.00-180.00   38
;
_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      -0.0413787000
_diffrn_orient_matrix_UB_12      0.0252029000
_diffrn_orient_matrix_UB_13      0.0128274000
_diffrn_orient_matrix_UB_21      0.0101193000
_diffrn_orient_matrix_UB_22      -0.0240928000
_diffrn_orient_matrix_UB_23      0.0300080000
_diffrn_orient_matrix_UB_31      0.0270963000
_diffrn_orient_matrix_UB_32      0.0476964000
_diffrn_orient_matrix_UB_33      0.0083567000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0635
_diffrn_reflns_av_unetI/netI     0.0811
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            11205
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.024
_diffrn_reflns_theta_max         25.024
_diffrn_reflns_theta_min         1.934
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    4.587
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.91486
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.67a (Rigaku Oxford Diffraction, 2019)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_density_diffrn    1.721
_exptl_crystal_description       prism
_exptl_crystal_F_000             1824
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.413
_refine_diff_density_min         -0.396
_refine_diff_density_rms         0.092
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         3133
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0891
_refine_ls_R_factor_gt           0.0483
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0079P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0512
_refine_ls_wR_factor_ref         0.0596
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2106
_reflns_number_total             3133
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ce01355j2.cif
_cod_data_source_block           shi_4748_fldu
_cod_depositor_comments
'Adding full bibliography for 7245901--7245906.cif.'
_cod_database_code               7245906
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         C15H15N3O4Br2
_chemical_oxdiff_usercomment     I-490
_shelx_estimated_absorpt_t_max   0.546
_shelx_estimated_absorpt_t_min   0.492
_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), 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)
;
_shelx_res_checksum              43605
_shelx_hkl_checksum              4875
_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 1.170
_oxdiff_exptl_absorpt_empirical_full_min 0.915