1-Allyl-1<i>H</i>-1,3-benzimidazol-2(3<i>H</i>)-one
Belaziz, Dounia; Kandri Rodi, Youssef; Ouazzani Chahdi, Fouad; Essassi, El Mokhtar; Saadi, Mohamed; El Ammari, Lahcen; Acta Crystallographica Section E 68 (2012) o3212–; doi:10.1107/S1600536812043620

data_2236201
_publ_section_title
;
 1-Allyl-1<i>H</i>-1,3-benzimidazol-2(3<i>H</i>)-one
;
_journal_coeditor_code           FJ2602
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3212
_journal_paper_doi               10.1107/S1600536812043620
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C10 H10 N2 O'
_chemical_formula_moiety         'C10 H10 N2 O'
_chemical_formula_sum            'C10 H10 N2 O'
_chemical_formula_weight         174.20
_chemical_melting_point          342.7
_chemical_name_systematic
;
1-Allyl-1<i>H</i>-1,3-benzimidazol-2(3<i>H</i>)-one
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 100.976(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.2749(5)
_cell_length_b                   5.5787(3)
_cell_length_c                   16.6220(9)
_cell_measurement_reflns_used    2570
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.39
_cell_measurement_theta_min      2.9
_cell_volume                     935.35(9)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 2005)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 2012)'
_computing_publication_material
'PLATON (Spek, 2009) and publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker X8 APEX'
_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  0.0455
_diffrn_reflns_av_sigmaI/netI    0.0459
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13429
_diffrn_reflns_theta_full        29.39
_diffrn_reflns_theta_max         29.39
_diffrn_reflns_theta_min         2.90
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             368
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.137
_refine_diff_density_min         -0.137
_refine_ls_extinction_coef       0.011(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   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     120
_refine_ls_number_reflns         2570
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.1054
_refine_ls_R_factor_gt           0.0448
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0584P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1031
_refine_ls_wR_factor_ref         0.1278
_reflns_number_gt                1393
_reflns_number_total             2570
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fj2602.cif
_cod_data_source_block           I
_cod_original_cell_volume        935.35(8)
_cod_original_sg_symbol_Hall     '-p 2ybc'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2236201
_cod_database_fobs_code          2236201