(1<i>R</i>,3<i>S</i>)-1,1'-(1,3-Dihydro-2-benzofuran-1,3-diyl)bis(1,3-dimethylurea)
Maliha, Bushra; Tariq, Muhammad Ilyas; Tahir, M. Nawaz; Hussain, Ishtiaq; Siddiqui, Hamid Latif; Acta Crystallographica Section E 65 (2009) o42–o43; doi:10.1107/S1600536808040828

data_2220540
_publ_section_title
(1<i>R</i>,3<i>S</i>)-1,1'-(1,3-Dihydro-2-benzofuran-1,3-diyl)bis(1,3-dimethylurea)
_journal_coeditor_code           HK2591
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o42
_journal_page_last               o43
_journal_paper_doi               10.1107/S1600536808040828
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C14 H20 N4 O3'
_chemical_formula_moiety         'C14 H20 N4 O3'
_chemical_formula_sum            'C14 H20 N4 O3'
_chemical_formula_weight         292.34
_chemical_name_systematic
;
(1<i>R</i>,3<i>S</i>)-1,1'-(1,3-Dihydro-2-benzofuran-1,3-diyl)bis(1,3-
dimethylurea)
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.6322(6)
_cell_length_b                   9.1014(3)
_cell_length_c                   21.2307(9)
_cell_measurement_reflns_used    2741
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.59
_cell_measurement_theta_min      1.92
_cell_volume                     2827.37(19)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2003)'
_computing_publication_material
;
WinGX (Farrugia, 1999) and PLATON (Spek, 2003)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 7.50
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker Kappa APEXII CCD'
_diffrn_measurement_method       \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  0.0328
_diffrn_reflns_av_sigmaI/netI    0.0224
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            19271
_diffrn_reflns_theta_full        27.59
_diffrn_reflns_theta_max         27.59
_diffrn_reflns_theta_min         1.92
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.982
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.323
_refine_diff_density_min         -0.300
_refine_ls_abs_structure_details ' '
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     206
_refine_ls_number_reflns         3257
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0376
_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^)+(0.1147P)^2^+0.2587P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1254
_refine_ls_wR_factor_ref         0.1504
_reflns_number_gt                2741
_reflns_number_total             3257
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hk2591.cif
_cod_data_source_block           I
_cod_database_code               2220540
_cod_database_fobs_code          2220540