Six 1-halobenzoyl-4-(2-methoxyphenyl)piperazines having <i>Z</i>' values of one, two or four; disorder, pseudosymmetry, twinning and supramolecular assembly in one, two or three dimensions
Harish Chinthal, Chayanna; Kavitha, Channappa N.; Yathirajan, Hemmige S.; Foro, Sabine; Glidewell, Christopher; Acta Crystallographica Section E 77 (2021) 5–13; doi:10.1107/S2056989020015649

data_2243694
_publ_section_title
;
 Six 1-halobenzoyl-4-(2-methoxyphenyl)piperazines having <i>Z</i>' values
 of one, two or four; disorder, pseudosymmetry, twinning and
 supramolecular assembly in one, two or three dimensions
;
_journal_coeditor_code           HB7954
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              5
_journal_page_last               13
_journal_paper_doi               10.1107/S2056989020015649
_journal_volume                  77
_journal_year                    2021
_chemical_formula_iupac          'C18 H19 Br N2 O2'
_chemical_formula_moiety         'C18 H19 Br N2 O2'
_chemical_formula_sum            'C18 H19 Br N2 O2'
_chemical_formula_weight         375.26
_chemical_name_systematic
;
1-(4-Bromobenzoyl)-4-(2-methoxyphenyl)piperazine
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     difmap
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.0779(7)
_cell_length_b                   11.2868(6)
_cell_length_c                   20.5297(9)
_cell_measurement_reflns_used    6870
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.802
_cell_measurement_theta_min      2.682
_cell_volume                     3493.8(3)
_computing_cell_refinement
;
CrysAlis RED (Oxford Diffraction, 2009)
;
_computing_data_collection
;
CrysAlis CCD (Oxford Diffraction, 2009)
;
_computing_data_reduction
;
CrysAlis RED (Oxford Diffraction, 2009)
;
_computing_molecular_graphics
;
PLATON (Spek, 2020)
;
_computing_publication_material
;
SHELXL2014 (Sheldrick, 2015b) and PLATON (Spek, 2020)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015b)
;
_computing_structure_solution
;
SHELXT (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0309
_diffrn_reflns_av_unetI/netI     0.0647
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13342
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.498
_diffrn_reflns_theta_min         2.682
_diffrn_source                   'Enhance (Mo) X-ray Source'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.364
_exptl_absorpt_correction_T_max  0.567
_exptl_absorpt_correction_T_min  0.294
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysalisRed; Oxford Diffraction, 2009)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_description       plate
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.480
_exptl_crystal_size_min          0.240
_refine_diff_density_max         0.852
_refine_diff_density_min         -0.494
_refine_ls_abs_structure_details
;
Flack <i>x </i>determined using 1109 quotients
[(<i>I</i>^+^)-(<i>I</i>^-^)]/[(<i>I</i>^+^)+(<i>I</i>^-^)]
(Parsons <i>et al.</i>,  2013)
;
_refine_ls_abs_structure_Flack   0.300(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.925
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     445
_refine_ls_number_reflns         5910
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      0.924
_refine_ls_R_factor_all          0.0956
_refine_ls_R_factor_gt           0.0514
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0736P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1212
_refine_ls_wR_factor_ref         0.1300
_reflns_number_gt                3300
_reflns_number_total             5910
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            hb7954sup1.cif
_cod_data_source_block           III
_cod_database_code               2243694
_cod_database_fobs_code          2243694
_shelx_estimated_absorpt_t_min   0.384
_shelx_estimated_absorpt_t_max   0.601
_shelx_hkl_checksum              77430
_shelx_res_checksum              28166
_shelxl_version_number           2.014