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_2311816
_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 H22 N2 O'
_chemical_formula_moiety         'C20 H22 N2 O'
_chemical_formula_sum            'C20 H22 N2 O'
_chemical_formula_weight         306.40
_chemical_name_systematic
;
1-Benzoyl-2-(1-cyclohexylbenzylidene)hydrazone
;
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/c 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                 116.661(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.0939(15)
_cell_length_b                   13.8666(8)
_cell_length_c                   16.8556(16)
_cell_measurement_temperature    173(2)
_cell_volume                     3361.7(5)
_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 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0686
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            27068
_diffrn_reflns_theta_full        27.85
_diffrn_reflns_theta_max         27.85
_diffrn_reflns_theta_min         3.86
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.211
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1312
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.52
_exptl_crystal_size_min          0.50
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.164
_refine_ls_extinction_coef       0.0023(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     213
_refine_ls_number_reflns         3956
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0359
_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^)+(0.0550P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0948
_refine_ls_wR_factor_ref         0.0979
_reflns_number_gt                3004
_reflns_number_total             3956
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            eg3169sup1.cif
_cod_data_source_block           IV
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2311816