Six 1-aroyl-4-(4-methoxyphenyl)piperazines: similar molecular structures but different patterns of supramolecular assembly
Kiran Kumar, Haruvegowda; Yathirajan, Hemmige S.; Sagar, Belakavadi K.; Foro, Sabine; Glidewell, Christopher; Acta Crystallographica Section E 75 (2019) 1253–1260; doi:10.1107/S2056989019010491

data_2243045
_publ_section_title
;
 Six 1-aroyl-4-(4-methoxyphenyl)piperazines: similar molecular structures
 but different patterns of supramolecular assembly
;
_journal_coeditor_code           ZL2757
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              1253
_journal_page_last               1260
_journal_paper_doi               10.1107/S2056989019010491
_journal_volume                  75
_journal_year                    2019
_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-(2-Bromoobenzoyl)-4-(4-methoxyphenyl)piperazine
;
_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'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                   12.9119(14)
_cell_length_b                   13.3664(16)
_cell_length_c                   19.5019(19)
_cell_measurement_reflns_used    10112
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      30.558
_cell_measurement_theta_min      2.193
_cell_volume                     3365.7(6)
_computing_cell_refinement
;
SAINT (Bruker, 2015)
;
_computing_data_collection
;
APEX2 (Bruker, 2015)
;
_computing_data_reduction
;
SAINT (Bruker, 2015)
;
_computing_molecular_graphics
;
PLATON (Spek, 2009)
;
_computing_publication_material
;
SHELXL2014 (Sheldrick, 2015b) and PLATON (Spek, 2009)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015b)
;
_computing_structure_solution
;
SHELXT (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker D8 Quest'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0387
_diffrn_reflns_av_unetI/netI     0.0202
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            47663
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.550
_diffrn_reflns_theta_min         2.429
_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    2.454
_exptl_absorpt_correction_T_max  0.643
_exptl_absorpt_correction_T_min  0.538
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Bruker, 2015
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.481
_exptl_crystal_description       block
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.539
_refine_diff_density_min         -0.643
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         4262
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0651
_refine_ls_R_factor_gt           0.0450
_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^)+(0.0626P)^2^+2.0275P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1187
_refine_ls_wR_factor_ref         0.1308
_reflns_number_gt                3135
_reflns_number_total             4262
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            zl2757sup1.cif
_cod_data_source_block           IV
_cod_database_code               2243045
_cod_database_fobs_code          2243045
_shelx_estimated_absorpt_t_min   0.614
_shelx_estimated_absorpt_t_max   0.666
_shelx_hkl_checksum              11111
_shelx_res_checksum              48001
_shelxl_version_number           2.014