(5<i>Z</i>)-5-Benzylideneimidazolidine-2,4-dione
Xin-Hong Chang; Acta Crystallographica Section E 62 (2006) o5184–o5185; doi:10.1107/S1600536806043182

data_2210952
_publ_section_title
;
 (5<i>Z</i>)-5-Benzylideneimidazolidine-2,4-dione
;
_journal_coeditor_code           CV2137
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o5184
_journal_page_last               o5185
_journal_paper_doi               10.1107/S1600536806043182
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C10 H8 N2 O2'
_chemical_formula_moiety         'C10 H8 N2 O2'
_chemical_formula_sum            'C10 H8 N2 O2'
_chemical_formula_weight         188.18
_chemical_name_systematic
;
(5Z)-5-Benzylideneimidazolidine-2,4-dione
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.532(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.0249(13)
_cell_length_b                   9.302(2)
_cell_length_c                   19.136(5)
_cell_measurement_reflns_used    2085
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      24.77
_cell_measurement_theta_min      2.34
_cell_volume                     894.1(4)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 1999)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0207
_diffrn_reflns_av_sigmaI/netI    0.0231
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            4327
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.13
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.9792
_exptl_absorpt_correction_T_min  0.9563
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             392
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.186
_refine_diff_density_min         -0.175
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     127
_refine_ls_number_reflns         1568
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0391
_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^)+(0.0515P)^2^+0.1619P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.1000
_reflns_number_gt                1319
_reflns_number_total             1568
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cv2137.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2210952
_cod_database_fobs_code          2210952