Ethyl 1-<i>sec</i>-butyl-2-(4-chlorophenyl)-1<i>H</i>-benzimidazole-5-carboxylate
Arumugam, Natarajan; Abdul Rahim, Aisyah Saad; Osman, Hasnah; Quah, Ching Kheng; Fun, Hoong-Kun; Acta Crystallographica Section E 66 (2010) o2412–o2413; doi:10.1107/S1600536810033945

data_2228086
_publ_section_title
;
 Ethyl
 1-<i>sec</i>-butyl-2-(4-chlorophenyl)-1<i>H</i>-benzimidazole-5-carboxylate
;
_journal_coeditor_code           WN2406
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2412
_journal_page_last               o2413
_journal_paper_doi               10.1107/S1600536810033945
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C20 H21 Cl N2 O2'
_chemical_formula_moiety         'C20 H21 Cl N2 O2'
_chemical_formula_sum            'C20 H21 Cl N2 O2'
_chemical_formula_weight         356.84
_chemical_name_systematic
;
Ethyl
1-<i>sec</i>-butyl-2-(4-chlorophenyl)-1<i>H</i>-benzimidazole-5-carboxylate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.043(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4321(9)
_cell_length_b                   12.6218(12)
_cell_length_c                   13.6896(12)
_cell_measurement_reflns_used    5929
_cell_measurement_temperature    100
_cell_measurement_theta_max      36.07
_cell_measurement_theta_min      2.83
_cell_volume                     1788.9(3)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type
;
Bruker SMART APEXII DUO CCD area-detector
;
_diffrn_measurement_method       '\f and \w scans'
_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  0.0377
_diffrn_reflns_av_sigmaI/netI    0.0494
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            21234
_diffrn_reflns_theta_full        36.17
_diffrn_reflns_theta_max         36.17
_diffrn_reflns_theta_min         2.20
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.229
_exptl_absorpt_correction_T_max  0.9774
_exptl_absorpt_correction_T_min  0.9041
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.449
_exptl_crystal_size_mid          0.337
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.748
_refine_diff_density_min         -0.389
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         8437
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0679
_refine_ls_R_factor_gt           0.0504
_refine_ls_shift/su_max_lt       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^)+(0.0914P)^2^+0.4364P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1459
_refine_ls_wR_factor_ref         0.1745
_reflns_number_gt                6651
_reflns_number_total             8437
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            wn2406.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2228086
_cod_database_fobs_code          2228086