Structural similarities among eight benzoylhydrazones.
Ton, Quoc Cuong; Bolte, Michael; Egert, Ernst; Acta crystallographica. Section C, Structural chemistry 70 (2014) 912–919; doi:10.1107/S2053229614018658

data_2311818
_publ_section_title
;
 Structural similarities among eight benzoylhydrazones.
;
_journal_coeditor_code           EG3169
_journal_issue                   'Pt 9'
_journal_name_full
'Acta crystallographica. Section C, Structural chemistry'
_journal_page_first              912
_journal_page_last               919
_journal_paper_doi               10.1107/S2053229614018658
_journal_volume                  70
_journal_year                    2014
_chemical_formula_iupac          'C20 H15 Cl N2 O'
_chemical_formula_moiety         'C20 H15 Cl N2 O'
_chemical_formula_sum            'C20 H15 Cl N2 O'
_chemical_formula_weight         334.79
_chemical_name_systematic
;
1-Benzoyl-2-[1-(4-chlorophenyl)benzylidene]hydrazone
;
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 102.18(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.432(4)
_cell_length_b                   8.9330(18)
_cell_length_c                   19.496(4)
_cell_measurement_temperature    173(2)
_cell_volume                     3308.1(12)
_computing_cell_refinement       'X-AREA (Stoe & Cie, 2001)'
_computing_data_collection       'X-AREA (Stoe & Cie, 2001)'
_computing_data_reduction        'X-AREA (Stoe & Cie, 2001)'
_computing_molecular_graphics
;
Mercury (Macrae <i>et al.</i>, 2008) and XP in SHELXTL-Plus (Sheldrick,
2008)
;
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Stoe IPDS II two-circle'
_diffrn_measurement_method       \f
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0743
_diffrn_reflns_av_sigmaI/netI    0.0543
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            46062
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         2.65
_exptl_absorpt_coefficient_mu    0.239
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.265
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.811
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     441
_refine_ls_number_reflns         6453
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.811
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0308
_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^)+(0.0300P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0603
_refine_ls_wR_factor_ref         0.0638
_reflns_number_gt                4590
_reflns_number_total             6453
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            eg3169sup1.cif
_cod_data_source_block           VI
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2311818