Ethyl (<i>E</i>)-1-(2-styryl-1<i>H</i>-benzimidazol-1-yl)acetate
Fu, Xue-qun; Xu, Guang-hai; Acta Crystallographica Section E 65 (2009) o1535–; doi:10.1107/S1600536809019825

data_2222316
_publ_section_title
;
 Ethyl (<i>E</i>)-1-(2-styryl-1<i>H</i>-benzimidazol-1-yl)acetate
;
_journal_coeditor_code           HB2982
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1535
_journal_paper_doi               10.1107/S1600536809019825
_journal_volume                  65
_journal_year                    2009
_chemical_formula_moiety         'C19 H18 N2 O2'
_chemical_formula_sum            'C19 H18 N2 O2'
_chemical_formula_weight         307.36
_chemical_name_systematic
;
Ethyl (<i>E</i>)-1-(2-styryl-1<i>H</i>-benzimidazol-1-yl)acetate
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.021(2)
_cell_length_b                   14.369(3)
_cell_length_c                   9.7517(18)
_cell_measurement_reflns_used    3237
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.4449
_cell_measurement_theta_min      2.5240
_cell_volume                     1684.4(5)
_computing_cell_refinement       'CrystalClear (Rigaku, 2005)'
_computing_data_collection       'CrystalClear (Rigaku, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku SCXmini'
_diffrn_measurement_method       CCD_Profile_fitting
_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  0.0559
_diffrn_reflns_av_sigmaI/netI    0.0264
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            16640
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.84
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.884
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             652
_exptl_crystal_size_max          0.2500
_exptl_crystal_size_mid          0.2500
_exptl_crystal_size_min          0.2000
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.251
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     215
_refine_ls_number_reflns         2046
_refine_ls_number_restraints     43
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0798
_refine_ls_R_factor_gt           0.0578
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0802P)^2^+0.1398P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1390
_refine_ls_wR_factor_ref         0.1513
_reflns_number_gt                1545
_reflns_number_total             2046
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb2982.cif
_cod_data_source_block           I
_cod_database_code               2222316
_cod_database_fobs_code          2222316